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1 aat3169 da ta sheet aat3169 high efficiency 1x/1.5x/2x charge pump for white led applications skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202158a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 11, 2012 general description the aat3169 is a low noise, constant frequency charge pump dc/dc converter that uses a tri-mode load switch (1x), fractional (1.5x), and doubling (2x) conversion to maximize efficiency for white led applications. the aat3169 is capable of driving six leds for a total of 180ma from a 2.7v to 5.5v input. the current sinks may be operated individually or in parallel for driving higher current leds. a low external parts count (two 1f flying capacitors and two small 1f capacitors at in and outcp) make this part ideally suited for small, battery- powered applications. skyworks' as 2 cwire? (advanced simple serial control) serial digital input is used to enable, disable, and set cur - rent for each led with a 16-level logarithmic scale plus four low-current settings down to 115a. for optimized efficiency, low-current settings require only 65a of housekeeping current. each output of the aat3169 is equipped with built-in protection for output short-circuit and auto-disable for load short-circuit conditions. built-in soft-start circuitry prevents excessive inrush current during start-up. a low- current shutdown feature disconnects the load from the input and reduces quiescent current to less than 1a. the aat3169 is available in a pb-free, space-saving, thermally-enhanced 16-pin 4x4mm qfn package, a 14-pin 3x3mm tdfn package, a low-profile 14-pin 3x3mm stdfn package or a 14-pin tsopjw package and is rated over the -40c to +85c temperature range. features ? v in range: 2.7v to 5.5v ? fully programmable current with single wire ? 16-step logarithmic scale ? 15/20/30ma max current ? four low-current settings down to 115a ? low i q (65a) for single-channel, low-current mode ? tri-mode 1x, 1.5x, and 2x charge pump for maximum efficiency and v f coverage ? drives up to six leds ? individual main-sub (5-1) group control ? no inductors, low noise operation ? 1mhz constant switching frequency ? small application circuit ? built-in thermal protection ? built-in auto-disable for open circuit ? automatic soft start ? i q <1a in shutdown ? thermally-enhanced tdfn33-14, stdfn33-14, qfn44-16, or tsopjw-14 package applications ? color (rgb) lighting ? programmable current sink ? transmissive displays ? white led backlighting ? white photo flash for digital still cameras typical application c11f c21f d1 main sub d2 d3 d4 d5 c out 1f en/set 2.7v to 5.5v inen/set c1+ c1- c2+ c2- outc d1d2 d3 d4 d5 d t31 d c in 1f downloaded from: http:///
2 aat3169 da ta sheet aat3169 high efficiency 1x/1.5x/2x charge pump for white led applications skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202158a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 11, 2012 pin descriptions pin number symbol function aat3169isn aat3169iwo, aat3169ifo aat3169ito 1 2 13 d6 current sink input #6. 2 3 12 en/set as 2 cwire serial interface control pin. 3 n/a n/a n/c no connection. 4 6 9 outcp charge pump output to drive load circuit. requires 1f capacitor connected between this pin and ground. 5 7 8 c2+ flying capacitor 2 positive terminal. connect a 1f capacitor be- tween c2+ and c2-. 6 4 11 c1+ flying capacitor 1 positive terminal. connect a 1f capacitor be- tween c1+ and c1-. 7 5 10 c1- flying capacitor 1 negative terminal. 8 8 7 c2- flying capacitor 2 negative terminal. 9, 11 10 5 gnd ground. 10 9 6 in input power supply. requires 1f capacitor connected between this pin and ground. 12 11 4 d1 current sink input #1. 13 12 3 d2 current sink input #2. 14 13 2 d3 current sink input #3. 15 14 1 d4 current sink input #4. 16 1 14 d5 current sink input #5. ep n/a n/a exposed paddle (bottom); connect to ground as closely as possible to the package. pin configuration tdfn33-14, qfn44-16 stdfn33-14 tsopjw-14 (top view) (top view) (top view) 1 2 3 4 12 11 10 9 5 6 7 8 16 15 14 13 d6 en/set n/c outcp c2+ c1+ c1- c2- gnd in gnd d1 d2 d3 d4 d5 d5 en/set c1+ 1 c1- outcp c2+ d4d2 d1 gnd in c2- d6 2 3 4 5 6 7 14 d3 13 12 11 10 9 8 1 2 3 4 5 6 14 13 12 11 10 9 d4 d3 d2 d1 gnd in d5d6 en/set c1+ c1- outcp 7 8 c2- c2+ downloaded from: http:///
3 aat3169 da ta sheet aat3169 high efficiency 1x/1.5x/2x charge pump for white led applications skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202158a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 11, 2012 absolute maximum ratings 1 symbol description value units v in input voltage to gnd -0.3 to 6 v v en/set en/set voltage to gnd -0.3 to v in + 0.3 v i out 2 maximum dc output current 210 ma t j operating junction temperature range -40 to 150 c t lead maximum soldering temperature (at leads, 10 sec) 300 c thermal information 3 symbol description value units p d maximum power dissipation qfn44-16 4 2.0 w stdfn33-14 4 tdfn33-14 tsopjw-14 0.625 q ja maximum thermal resistance qfn44-16 50 c/w tdfn33-14 stdfn33-14 tsopjw-14 160 1. stresses above those listed in absolute maximum ratings may cause permanent damage to the device. functional operation at conditions other than the operating conditions specified is not implied. only one absolute maximum rating should be applied at any one time. 2. based on long-term current density limitation. 3. mounted on an fr4 board. 4. derate 20mw/c above 25c. downloaded from: http:///
4 aat3169 da ta sheet aat3169 high efficiency 1x/1.5x/2x charge pump for white led applications skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202158a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 11, 2012 electrical characteristics 1 c in = c out = c 1 = c 2 = 1.0f; t a = -40c to +85c, unless otherwise noted. typical values are at t a = 25c, v in = 3.6v. symbol description conditions min typ max units input power supply v in operation range 2.7 5.5 v i cc operating current 1x mode, 3.0 v in 5.5, active, no load current, high current mode 0.3 ma 1.5x mode, 3.0 v in 5.5, active, no load current, high current mode 1 2x mode, 3.0 v in 5.5, active, no load current, high current mode 1 1x mode, 3.0 v in 5.5, d6 active, no load current, low current mode 65 90 a i shdn shutdown current v en/set = 0v 1 a i dx current accuracy i set = 20ma, t a = 25c -10 10 i set = 2.4ma, t a = 25c -20 20 % low current accuracy i set = 400a, t a = 25c -20 20 i (d-match) current matching 2 v f :d1:d6 = 3.6v 0.5 % v th 1x to 1.5x or 1.5x to 2x transition threshold at any i sink pin i set = 20ma 150 mv charge pump section t ss soft-start time 100 s f clk clock frequency 1000 khz en/set v en(l) enable threshold low v in = 2.7v 0.4 v v en(h) enable threshold high v in = 5.5v 1.4 v t en/set lo en/set low time 0.3 75 s t en/set_hi_min minimum en/set high time 50 ns t en/set_hi_max maximum en/set high time 75 s t off en/set off timeout 500 s t lat en/set latch timeout 500 s i en/set en/set input leakage -1 1 a 1. the aat3169 is guaranteed to meet performance specifications over the -40c to +85c operating temperature range and is assured by design, characterization, and correla - tion with statistical process controls. 2. current matching is defined as the deviation of any sink current from the average of all active channels. downloaded from: http:///
5 aat3169 da ta sheet aat3169 high efficiency 1x/1.5x/2x charge pump for white led applications skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202158a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 11, 2012 typical characteristicsc in = c out = c 1 = c 2 = 1.0f, v in = 3.6v, t a = 25c, unless otherwise noted. efficiency vs. supply voltage supply voltage (v) efficiency (%) 50 60 70 80 90 100 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.9ma/ch v f = 2.9v 20ma/ch v f = 3.4v 10.9ma/ch v f = 3.1v turn-on to 1x mode (v in = 4.2v; 20ma/channel) time (100s/div) en (2v/div) cp (2v/div) i in (200ma/div) v sink (500mv/div) turn-on to 1.5x mode (v in = 3.8v; 20ma/channel) time (100s/div) en (2v/div) cp (2v/div) i in (200ma/div) v sink (500mv/div) turn-on to 2x mode (v in = 2.8v; 20ma/channel) time (100s/div) en (2v/div) cp (2v/div) i in (200ma/div) v sink (500mv/div) turn-off from 1.5x mode (v in = 3.5v; 20ma/channel) time (100s/div) en (2v/div) i in (100ma/div) v f (1v/div) current matching vs. temperature temperature ( c) current (ma) 19.2 19.4 19.6 19.8 20.0 20.2 -40 -20 02 04 0 60 80 channel 2 channel 1 channel 5 channel 3 channel 4 channel 6 downloaded from: http:///
6 aat3169 da ta sheet aat3169 high efficiency 1x/1.5x/2x charge pump for white led applications skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202158a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 11, 2012 typical characteristicsc in = c out = c 1 = c 2 = 1.0f, v in = 3.6v, t a = 25c, unless otherwise noted. load characteristics (v in = 3.8v; 1.5x mode; 15ma/channel) time (500ns/div) v in (40mv/div) v sink (40mv/div) cp (40mv/div) load characteristics (v in = 2.9v; 2x mode; 15ma/channel) time (500ns/div) v in (40mv/div) v sink (40mv/div) cp (40mv/div) load characteristics (v in = 4.0v; 1.5x mode; 20ma/channel) time (500ns/div) v in (40mv/div) v sink (40mv/div) cp (40mv/div) load characteristics (v in = 3.1v; 2x mode; 20ma/channel) time (500ns/div) v in (40mv/div) v sink (40mv/div) cp (40mv/div) load characteristics (v in = 4.3v; 1.5x mode; 30ma/channel) time (500ns/div) v in (40mv/div) v sink (40mv/div) cp (40mv/div) load characteristics (v in = 3.6v; 2x mode; 30ma/channel) time (500ns/div) v in (40mv/div) v sink (40mv/div) cp (40mv/div) downloaded from: http:///
7 aat3169 da ta sheet aat3169 high efficiency 1x/1.5x/2x charge pump for white led applications skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202158a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 11, 2012 typical characteristicsc in = c out = c 1 = c 2 = 1.0f, v in = 3.6v, t a = 25c, unless otherwise noted. t lat vs. v in v in (v) t lat ( s) 0 50 100 150 200 250 300 350 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5 -40 c 25 c 85 c t off vs. v in v in (v) t off ( s) 0 50 100 150 200 250 300 350 400 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5 -40 c 25 c 85 c input ripple vs. v in v in (v) amplitude (mv) 0 5 10 15 20 25 2.50 2.67 2.84 3.01 3.18 3.35 3.52 3.69 3.86 4.03 4.20 10.9ma/ch 20ma/ch 30ma/ch v ih vs. v in v in (v) v ih (v) 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5 -40 c 25 c 85 c v il vs. v in v in (v) v il (v) 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 2. 72 .9 3. 13 .3 3. 53 .7 3. 94 .1 4. 34 .5 4. 74 .9 5. 15 .3 5.5 -40 c 25 c 85 c downloaded from: http:///
8 aat3169 da ta sheet aat3169 high efficiency 1x/1.5x/2x charge pump for white led applications skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202158a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 11, 2012 functional description the aat3169 is a tri-mode load switch (1x) and high efficiency (1.5x or 2x) charge pump device intended for white led backlight applications. to maximize power conversion efficiency, an internal sensing circuit moni - tors the voltage required on each constant current sink input and sets the load switch and charge pump modes based on the input battery voltage and the current sink input voltage. as the battery discharges over time, the aat3169 charge pump is enabled when any of the six current sink inputs near dropout. the charge pump ini - tially starts in 1.5x mode. if the charge pump output droops enough for any current source output to become close to dropout, the charge pump will automatically transition to 2x mode. the aat3169 requires only four external components: two 1f ceramic capacitors for the charge pump flying capacitors (c1 and c2), one 1f ceramic input capacitor (c in ), and one 0.33f to 1f ceramic charge pump output capacitor (c out ). the six constant current sink inputs (d1 to d6) can drive six individual leds with a maximum current of 30ma nominal each. unused sink inputs should be connected to outcp, otherwise the part will operate only in 2x charge pump mode. the as 2 cwire serial interface enables the aat3169 and sets the current sink magni - tudes. as 2 cwire addressing allows independent control of two groups of current sink input: d1~d5 and d6. constant current output level settings the constant current sink levels for d1 to d6 are set via the serial interface according to a logarithmic scale where each code is approximately 1.8db lower than the previous code. in this manner, led brightness appears linear with each increasing code count. because the inputs d1 to d6 are true independent constant current sinks, the voltage observed on any single given input will be determined by the actual forward voltage (v f ) for the led being driven. since the input current sinks of the aat3169 are pro - grammable, no pwm (pulse width modulation) or addi - tional control circuitry is needed to control led bright - ness. this feature greatly reduces the burden on a micro - controller or system ic to manage led or display bright - ness, allowing the user to set it and forget it. with its high-speed serial interface (1mhz data rate), the input sink current of the aat3169 can be changed successively to brighten or dim leds in smooth transitions (e.g., to fade-out) or in abrupt steps, giving the user complete programmability and real-time control of led brightness. the 16 individual current level settings are each approx - imately 1.8db apart (see table 1). code 1 is full scale; code 15 is full scale attenuated by approximately 25db; and code 16 is reserved as a no current setting. functional block diagram d/a d/a d/a as 2 cwire interface voltage reference main 6 x 16 bit rom sub 6 x 16 bit rom 1mh ocillator softstart control 1 1 2 carge u i /s d d d d2 d1 oc c1 c1 c2 c2 d/a d d/a d6 d/a downloaded from: http:///
9 aat3169 da ta sheet aat3169 high efficiency 1x/1.5x/2x charge pump for white led applications skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202158a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 11, 2012 data mean 30ma max mean 20ma max mean 15ma max 1 30.0 20.0 1 15.0 2 29.3 19.5 14.6 3 27.8 18.5 13.9 4 25.2 17.0 12.7 5 22.8 15.4 11.5 6 20.9 14.2 10.5 7 18.5 12.5 9.3 8 16.1 10.9 8.1 9 13.7 9.3 7.0 10 11.5 8.0 6.0 11 9.4 6.5 4.9 12 7.0 4.9 3.7 13 4.7 3.3 2.6 14 3.3 2.4 1.9 15 1.9 1.5 1.2 16 0.0 0.0 0.0 table 1: mean table of aat3169 output current. as 2 cwire serial interface the current sink input magnitude on the aat3169 is con - trolled by skyworks' advanced simple serial control (as 2 cwire) serial digital input. as 2 cwire adds addressing capability for multiple data registers over the simple serial control? (s 2 cwire?), which is only capable of controlling a single register. the aat3169 has four regis - ters: bank1, bank2, max current, and low current. three addresses are used to control the two registers. address 0 addresses both registers simultaneously to allow the loading of both registers with the same data using a single write protocol. address 1 addresses register 1 for d1 to d5 current level settings. address 2 addresses register 2 for d6 current level settings. as 2 cwire relies on the number of rising edges of the en/ set pin to address and load the registers. as 2 cwire latches data or address after the en/set pin has been held high for time t lat . address or data is differentiated by the number of en/set rising edges. since the data registers are 4 bits each, the differentiating number of pulses is 2 4 or 16, so that address 0 is signified by 17 rising edges, address 1 by 18 rising edges, and address 2 by 19 rising edges. data is set to any number of rising edges between 1 and including 16. a typical write pro - tocol is a burst of en/set rising edges, signifying a par - ticular address, followed by a pause with en/set held high for the t lat timeout period, a burst of rising edges signifying data, and a t lat timeout for the data registers. once an address is set, then multiple writes consisting of data only (without address) to the corresponding data register are allowed. address 0 is the default address on the first rising edge after the aat3169 has been disabled. if data is presented on the first rising edge with no prior address, both data registers are simultaneously loaded. the maximum current level is determined by the value set in register 3, the max current register. three scales are available for high operating currents with maximum current levels of 30ma, 20ma, or 15ma. each scale maintains approximately 1.8db steps between settings. a separate mode is available for ultra-low led current operation. when the max current register (register 3) is set to the low current setting, the low current register (register 4) must be programmed. the two most sig - nificant bits of the low current register control whether or not a given bank of current sinks is enabled. the least two significant bits of the low current register sets the current level for both banks. for low current settings, the charge pump may be enabled if required by the battery voltage and led forward voltage conditions, and 1x mode quiescent current is approximately 130a for mul - tiple channels or 65a for channel 6 operation only. both banks of current sinks must be in the same high or low current mode of operation. when en/set is held low for an amount of time greater than t off , the aat3169 enters shutdown mode and draws less than 1a from the input. during shutdown, the address register is reset to 0 and data registers are reset to their default values. as 2 cwire serial interface addressing address en/set rising edges data register aat3169 0 1 17 1&2: d1~d6 current 1 18 1: d1~d5 current 2 19 2: d6 current 3 20 3: max current 4 21 4: low current data max current 1 1 20ma 2 30ma 3 15ma 4 low current (see low current register for values) 1. denotes the default values after en/set is toggled high. downloaded from: http:///
10 aat3169 da ta sheet aat3169 high efficiency 1x/1.5x/2x charge pump for white led applications skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202158a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 11, 2012 low current register (address 4) data main low current on sub low current on current 1 no no 2 no no 3 no no 4 no no 5 no yes 115a 6 no yes 175a 7 no yes 280a 8 no yes 400a 9 yes no 115a 10 yes no 175a 11 yes no 280a 12 yes no 400a 13 yes yes 115a 14 yes yes 175a 15 yes yes 280a 16 yes yes 400a auto-disable feature aat3169 is equipped with an auto-disable feature for each led channel. after the ic is enabled and started up, a test current of 120a (typical) is forced through each sink channel. the channel will be disabled if the voltage of that particular sink pin does not drop to a certain threshold. this feature is very convenient for disabling an unused channel or during an led fail-short event. thermal protection the aat3169 has a built-in thermal protection circuit that will shut down the charge pump if the die tempera - ture rises above the thermal limit, as would be the case during a short circuit of the outcp pin. as 2 cwire serial interface timing addres s data 1 en/set 2 17 18 addres s data reg 1 data reg 2 1 2 . . . n <= 1 6 0 1 00 n t hi t lo t la t t la t downloaded from: http:///
11 aat3169 da ta sheet aat3169 high efficiency 1x/1.5x/2x charge pump for white led applications skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202158a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 11, 2012 applications informationled selection although the aat3169 is designed for driving white leds, the device also can be used to drive most types of leds with forward voltages from 2.0v to 4.7v. led appli - cations may include main and sub-lcd display back - lighting, camera photo-flash applications, color (rgb) leds, infrared (ir) diodes for remotes, and other loads benefiting from a controlled output current generated from a varying input voltage. since the d1 to d6 input current sinks are matched with negligible voltage depen - dence, the led brightness will be matched regardless of the specific led forward voltage (v f ) levels. in some instances (e.g., in high luminous output appli - cations such as photo flash), it may be necessary to drive high-v f type leds. the low dropout current sinks in the aat3169 make it capable of driving leds with forward voltages as high as 4.7v at full current from an input supply as low as 3.0v. outputs can be paralleled to drive high-current leds without complication. device switching noise performance the aat3169 operates at a fixed frequency of approxi - mately 1mhz to control noise and limit harmonics that can interfere with the rf operation of cellular telephone handsets or other communication devices. back-injected noise appearing on the input pin of the charge pump is 20mv peak-to-peak, typically ten times less than induc - tor-based dc/dc boost converter white led backlight solutions. the aat3169 soft-start feature prevents noise transient effects associated with inrush currents during start-up of the charge pump circuit. capacitor selection careful selection of the four external capacitors (c in , c 1 , c 2 , and c out ) is important because they will affect turn- on time, output ripple, and transient performance. optimum performance will be obtained when low esr ceramic capacitors are used; in general, low esr may be defined as less than 100m w . a value of 1f for all four capacitors is a good starting point when choosing capac - itors. if the led current sources are programmed only for light current levels, then the capacitor size may be decreased. capacitor characteristics ceramic composition capacitors are highly recommend - ed over all other types of capacitors for use with the aat3169. ceramic capacitors offer many advantages over their tantalum and aluminum electrolytic counter - parts. a ceramic capacitor typically has very low equivalent series resistance (esr), is lowest cost, has a smaller pcb footprint, and is non-polarized. low esr ceramic capacitors help maximize charge pump tran - sient response. since ceramic capacitors are non-polar - ized, they are not prone to incorrect connection damage. equivalent series resistance esr is an important characteristic to consider when selecting a capacitor. esr is resistance internal to a capacitor that is caused by the leads, internal connec - tions, size or area, material composition, and ambient temperature. capacitor esr is typically measured in mil - liohms for ceramic capacitors and can range to more than several ohms for tantalum or aluminum electrolytic capacitors. ceramic capacitor materials ceramic capacitors less than 0.1f are typically made from npo or c0g materials. npo and c0g materials generally have tight tolerance and are very stable over temperature. larger capacitor values are usually com - posed of x7r, x5r, z5u, or y5v dielectric materials. large ceramic capacitors (i.e., greater than 2.2f) are often available in low-cost y5v and z5u dielectrics, but capacitors greater than 1f are not typically required for aat3169 applications. capacitor area is another contributor to esr. capacitors that are physically large will have a lower esr when compared to an equivalent material smaller capacitor. these larger devices can improve circuit transient response when compared to an equal value capacitor in a smaller package size. downloaded from: http:///
12 aat3169 da ta sheet aat3169 high efficiency 1x/1.5x/2x charge pump for white led applications skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202158a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 11, 2012 vdd 1 gp5 2 gp4 3 gp3 4 gp2 5 gp1 6 gp0 7 vss 8 pic12f675 u2 1uf c2 c31f c11f c41f c510f c21f 1k r1 1 2 3 4 5 0 down sw1 1 2 3 4 5 0 up sw2 red led2 1 2 3 4 5 0 cycle sw3 dc- d2 d1 d4 d3 dc+ pot10k vr4 grn led1 jp1 jp2 jp3 jp4 j2 dc+ jp7 d5 1 d6 2 en/set 3 c1+ 4 c1- 5 outcp 6 d3 13 in 9 gnd 10 d1 11 d2 12 c2+ 7 c2- 8 d4 14 u1 jp5 jp6 d5 d6 aat3169-stdfn33-14 j1 jp8 dc+ 1k r2 1k r3 1.5k r5 100k r6 220 r7 1.5k r8 figure 1: aat3169ifo evaluation board schematic. downloaded from: http:///
13 aat3169 da ta sheet aat3169 high efficiency 1x/1.5x/2x charge pump for white led applications skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202158a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 11, 2012 vdd 1 gp5 2 gp4 3 gp3 4 gp2 5 gp1 6 gp0 7 vss 8 pic12f675 u2 1f c1 1f c2 1f c3 1f c4 10f c5 1k r1 1k r2 1k r3 1.5k r5 j1 1 2 3 4 5 0 down sw1 1 2 3 4 5 0 up sw2 red led7 1 2 3 4 5 0 cycle sw3 dc+ dc- d2 d1 d4 d3 gnd dc+ gnd gnd pot10k vr4 grn led0 1.5k r8 gnd gnd gnd j2 100k r6 220 r7 gnd jp8 dc+ jp7 jpx d5 d6 (qfn44-16) enset 2 in 10 d1 12 d6 1 gnd 11 d2 13 c2+ 5 gnd 9 nc 3 outcp 4 c1+ 6 c1- 7 c2- 8 d3 14 d4 15 d5 16 aat3169 u1 figure 2: aat3169isn evaluation board schematic. downloaded from: http:///
14 aat3169 da ta sheet aat3169 high efficiency 1x/1.5x/2x charge pump for white led applications skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202158a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 11, 2012 vdd 1 gp5 2 gp4 3 gp3 4 gp2 5 gp1 6 gp0 7 vss 8 u2 pic12f675 1f c1 1f c3 1f c2 1f c4 10f c5 1k r1 1k r2 1k r3 1.5k r5 1 2 3 4 5 0 sw1 down 1 2 3 4 5 0 sw2 up led7 red 1 2 3 4 5 0 sw3 cycle dc+ dc- d5 d6 d3 d4 dc+ vr4po t10k le d0 grn 1.5k r8 j2 100k r6 220 r7 jp8 jp7 jpx d2 d1 gnd gnd gnd gnd gnd gnd gnd gnd gnd in j1 dc+ d4 1 d3 2 d2 3 d1 4 gn d 5 in 6 d6 13 outcp 9 c1- 10 c1+ 11 en/set 12 c2- 7 c2+ 8 d5 14 u1 tsopjw14aat3169 figure 3: aat3169ito evaluation board schematic. downloaded from: http:///
15 aat3169 da ta sheet aat3169 high efficiency 1x/1.5x/2x charge pump for white led applications skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202158a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 11, 2012 figure 4: aat3169ifo evaluation board figure 5: aat3169ifo evaluation board top side layout. bottom side layout. figure 6: aat3169isn evaluation board figure 7: aat3169isn evaluation board top side layout. bottom side layout. downloaded from: http:///
16 aat3169 da ta sheet aat3169 high efficiency 1x/1.5x/2x charge pump for white led applications skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202158a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 11, 2012 figure 8: aat3169ito evaluation board figure 9: aat3169ito evaluation board top side layout. bottom side layout. downloaded from: http:///
17 aat3169 da ta sheet aat3169 high efficiency 1x/1.5x/2x charge pump for white led applications skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202158a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 11, 2012 ordering information package marking 1 part number (tape and reel) 2 stdfn33-14 unxyy AAT3169IFO-T1 qfn44-16 rvxyy aat3169isn-t1 tsopjw-14 7lxyy aat3169ito-t1 tdfn33-14 7zxyy aat3169iwo-t1 skyworks green? products are compliant with all applicable legislation and are halogen-free. for additional information, refer to skyworks de?nition of green? , document number sq04-0074. package information 3 tdfn33-14 to p view bottom view 3.000 0.050 index area 3.000 0.050 detail "a" 1.650 0.050 2.500 0.050 0.203 ref 0.50 0.050 0.000 + 0.100 0.000 detail "a" ide view 0.25 0.050 0.00 b 0.10 0.050 in 1 indiator ptional all dimensions in millimeters. 1. xyy = assembly and date code. 2. sample stock is generally held on part numbers listed in bold . 3. the leadless package family, which includes qfn, tqfn, dfn, tdfn and stdfn, has exposed copper (unplated) at the end of the lead terminals due to the manufacturing process. a solder fillet at the exposed copper edge cannot be guaranteed and is not required to ensure a proper bottom solder connection. downloaded from: http:///
18 aat3169 da ta sheet aat3169 high efficiency 1x/1.5x/2x charge pump for white led applications skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202158a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 11, 2012 stdfn33-14 to p view bottom view 3.000 0.050 index area 3.000 0.050 detail "a" 1.700 0.050 2.570 0.050 0.152 ref 0.550 0.050 0.025 0.025 detail "a" ide view 0.25 0.050 0.00 b 0.210 0.050 in 1 indiator ptional r0.2 qfn44-16 4.000 0.050 pin 1 dot by marking 2.400 0.050 0.550 0.020 2.400 0.050 4.000 0.050 2.280 ref 0.650 bsc 0.900 0.100 pin 1 identification c0.3 14 5 8 9 13 16 0.025 0.025 0.214 0.036 0.330 0.075 top view bottom view side view all dimensions in millimeters. downloaded from: http:///
19 aat3169 da ta sheet aat3169 high efficiency 1x/1.5x/2x charge pump for white led applications skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202158a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 11, 2012 copyright ? 2012 skyworks solutions, inc. all rights reserved. information in this document is provided in connection with skyworks solutions, inc. (skyworks) pr oducts or services. these materials, including the information contained herein, are provided by sky works as a service to its customers and may be used for informational purposes only by the customer. skyworks a ssumes no responsibility for errors or omissions in these materials or the information contained her ein. sky- works may change its documentation, products, services, speciications or product descriptions at any time, without notice. skyworks makes no commitment to update the materials or information and shall have no responsibility whatsoever for conlicts, incompatibilities, or other dificulties arising from any fut ure changes. no license, whether express, implied, by estoppel or otherwise, is granted to any intellectual prope rty rights by this document. skyworks assumes no liability for any materials, products or informatio n provided here- under, including the sale, distribution, reproduction or use of skyworks products, information or ma terials, except as may be provided in skyworks terms and conditions of sale. the materials, products and information are provided as is without warranty of any kind, whether e xpress, implied, statutory, or otherwise, including fitness for a particular purpose or use, merchantability, performance, quality or non-infringement of any intellectual proper ty right; all such warranties are hereby expressly disclaimed. skyworks does not warrant the accuracy or completeness of the information, text, graphics or other items contained within these materials. skyworks shall not be liable for any damages, in- cluding but not limited to any special, indirect, incidental, statutory, or consequential damages, i ncluding without limitation, lost revenues or lost profits that may result from the use of the materials or information, whether or not the recipient of materials has been advised of the possibility of such damage. skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, o r other equipment in which the failure of the skyworks products could lead to personal injury, death , physical or en- vironmental damage. skyworks customers using or selling skyworks products for use in such applicatio ns do so at their own risk and agree to fully indemnify skyworks for any damages resulting from such improper use or sale. customers are responsible for their products and applications using skyworks products, which may dev iate from published speciications as a result of design defects, errors, or operation of products ou tside of pub- lished parameters or design speciications. customers should include design and operating safeguards to minimize these and other risks. skyworks assumes no liability for applications assistance, custom er product design, or damage to any equipment resulting from the use of skyworks products outside of stated pub lished speciications or parameters. skyworks, the skyworks symbol, and breakthrough simplicity are trademarks or registered trademarks of skyworks solutions, inc., in the united states and other countries. third-party brands and names are for identiication purposes only, and are the property of their respective owners. additional information , including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by refere nce. tsopjw-14 2.40 0.10 2.85 0.20 0.40 bsc 0.20 + 0.10 - 0.05 0.15 0.05 0.04 ref 0.45 0.15 2.75 0.25 4 4 1.05 + 0.05 - 0.0 0 1.00 + 0.000 - 0.075 3.05 + 0.05 - 0.10 0.05 + 0.05 - 0.04 to p view side view end view all dimensions in millimeters. downloaded from: http:///

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