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tc776 5 wbg 2015 - 1 1 - 0 4 1 toshiba c d mos integrated silicon monolithic circuit TC7765WBG wireless power receiver controller ic 1. outline the TC7765WBG is wireless power receiver (rx) ic using communication protocol of wireless power consortium (wpc). the tc776 5 wbg has a rectifier circuit, a digital control circuit, a modulation circuit for communication which controls the supply voltage to the load . the ic includes all rx function s ne eded to construct a standalone wireless power system. the t c7765wbg can build a wireless power system by combining it with e xclusive version of tb6865afg. 2. applications mobile communication devices (smartphone, t ablet , wearable ), b attery pack, m obile accessory etc. 3. featu res ? full bridge rectifier circuit auto switch for 3 modes : synchronous rectification / diode rectification / diode bridge low on resistance : hi gh side 4 5 m (typ.) / low side 30 m (typ.) under voltage lockout (uvlo) / over voltage detection (ovp) function ? o utput voltage : 10 v ( max) maximum output current : 1.0 a over current protector ( oc p) : 1.3 a ? foreign object detection (fod) functio n ? under voltage lockout (uvlo) / over voltage detection (ovlo) functi on thermal shutdown function (tsd) ? package : s - xflga28 -0304- 0.50- 001 (2.4 0 mm* 3.67 mm * 0 . 5 mm , 0.5 mm pitch ) s - xflga28 - 0304- 0.50 - 001 this product has a mos structure and is sensitive to electrostatic discharge. when handling th is product, ensure that the environment is protected against electrostatic discharge by using an earth strap, a conductive mat and an ionizer. ensure also that the ambient temperature and relative humidity are maintained at reasonable levels. please use this product in combination with e xclusive version of tb6865afg. this wireless power system incorporates a foreign object (exp. metal pieces ) detection function, but a foreign object may generate heat in time before detecting it. about the foreign object, please be careful enough.
tc776 5 wbg 2015 - 1 1 - 0 4 2 4. block diagram rectifier controller digital controller 4 . 5 v ldo ngd uvlo por tsd ovp 4 out put controller current sense vrect _ sense ocp vout _ sense iout _ sense vdd 45 iout _ sense vout _ sense vt hd _ sense fod _ sense 10 osc tsd uvlo ovp ask modulator clamp controller vdd 45 fod _ sense por vdd 45 vref vref mux i 2 c interface 10 bit adc efuse ac 1 ac 2 pvdd pgnd com 1 com 2 clmp 1 clmp 2 stat en scl sda offse t fod vpp vout vdd 45 figure 4 . 1 block diagram
tc776 5 wbg 2015 - 1 1 - 0 4 3 5. pin assignment 1 2 3 4 a pgnd pgnd pgnd pgnd b ac2 ac2 ac1 ac1 c clmp2 pvdd pvdd clmp1 d vout vout vout vout e com2 sda scl com1 f vdd45 vpp test1 test2 g fod en stat offset (top view) figure 5 . 1 ball assignment (top view) index a g 1 4
tc776 5 wbg 2015 - 1 1 - 0 4 4 6. pin function table 6 . 1 pin function pin number pin symbol i/o description a1, a2 a3, a4 pgnd - power ground connect to common ground (gnd). b1, b2 ac2 i antenna terminals for receiver 2 b3, b4 ac1 i antenna terminals for receiver 1 c1 clmp2 o clamp terminal for over voltage protection 2 open drain terminal. please connect a condenser of 0.47 f to ac2 when use an internal clamping circuit. c2, c3 pvdd - rectifier output and power supply terminal output of bridge rectifier circuit and ic power supply terminal. connect smoothing capacitor. and connect zener diodes between pvdd and p gnd when use an internal clamping circuit. c4 clmp1 o clamp terminal for over voltage protection 1 open drain terminal. please connect a condenser of 0.47 f to ac 1 when use an internal clamping circuit. d1, d2 d3, d4 vout o output terminals connect capacitor of more than 1.0 f to gnd. e1 com2 o capacitor connect for ask modulation 2 open drain terminal. connect capacitor to ac2. e2 sda i/o i 2 c data i/o terminal for toshiba tests connect to gnd. e3 scl i i 2 c clock input terminal for toshiba tests connect to gnd. e4 com1 o capacitor connect for ask modulation 3 open drain terminal. connect capacitor to ac2. f1 vdd45 o 4.5 v - ldo output terminal 4.5 v - ldo output terminal for internal circuit. connect capacitor of more than 0.1 f to gnd. f2 vpp i efuse writing terminal short to vdd45 in normal use. f3 test 1 o make this terminal op en. f4 test2 i connect to gnd g1 fod i offset terminal for r x loss adjustments. loss offset terminal for fod connect appropriate resistor to gnd. g2 en i w ireless charging enable input terminal with internal pull - up resistor. w hen the terminal is ? h ? or ? open ? , tc7765 wbg is ready for wireless charging . w hen the terminal is ? l ? . tc7765 wbg wireless power receiver is disabled . g3 stat o status output terminal open drain terminal. connect pull - up resistor. g4 offset i o ffset terminal for rx loss adjustments l oss offset terminal for fod. c onnect appropriate resistor to gnd.
tc776 5 wbg 2015 - 1 1 - 0 4 5 7. equivalent circuit s for input/output/power supply terminal s 7.1 power supply terminal table 7 . 1 equivalent circuit s for power supply terminal s note : equivalent circuits may be simplified to illustrate circuits. pin name equivalent circuit pvdd 7.2 input/output terminal table 7 . 2 equivalent circuit s for input/output terminal s note : equivalent circuits may be simplified to illustrate circuits. pin name equivalent circuit sda pvdd pgnd pgnd sda internal circuit internal circuit
tc776 5 wbg 2015 - 1 1 - 0 4 6 7.3 input terminal table 7 . 3 equivalent circuit s for input terminal s note : equivalent circuits may be simplified to illustrate circuits. pin name equivalent circuit vpp ac1 ac2 scl en offset fod vpp pgnd pvdd ac 1 ac 2 pgnd internal circuit internal circuit pgnd scl internal circuit vdd 45 offse t fod pgnd internal circuit en pgnd internal circuit 100 k vdd 45
tc776 5 wbg 2015 - 1 1 - 0 4 7 7.4 output terminal table 7 . 4 equivalent circuit s for output terminal s note : equivalent circuits may be simplified to illustrate circuits. pin name equivalent circuit vdd45 vout com1 com2 vdd45 pgnd pvdd pvdd vout pgnd pvdd com1 pgnd internal circuit com2 internal circuit
tc776 5 wbg 2015 - 1 1 - 0 4 8 table 7 . 5 equivalent circuit s for output terminal s note : equivalent circuits may be simplified to illustrate circuits. pin name equivalent circuit clmp1 clmp2 stat pgnd stat internal circuit internal circuit pvdd clmp 1 clmp 2 pgnd internal circuit
tc776 5 wbg 2015 - 1 1 - 0 4 9 8. functions / operation description 8.1 general outline of wireless power system w ireless power system consists of the first side ( tx ) which transmits power and the second side ( rx ) which receives power. power is transmitted by adjoining coils included in the tx and rx and by sharing and combining their electromagnetic flux. the rx controls the transferred power by monitoring the receiv ed power and sending feedback signal s to the tx . the tx controls the power by co ntrolling its transmitt ed power according to the feedback signal which is received from the rx . a c onfiguration example of a wireless power system is shown in figure 8.1 . communication signal s from rx to tx are transmitted (modulated) by ask modulation. th e communication rate and its packet s are defined by the qi standard . communication rate is 2 kbps. packets are id, identification signal , error information, receive power, and stop signal. the tx is powered on intermittently and confirms the existence of a rx on the tx pad. when the tx recognizes a rx it succeeds to the identification phase; transmit operation starts after a compliant rx has been identified . the tx continues the transmit operation until it cannot recognize the existence of a rx or receives a transmit stop signal from the rx . figure 8 . 1 general outline of a w ireless power system 8.2 general outline of wireless power r x system the tc776 5 wbg includes a rectifier circuit which smoothes the r x coil current of the wireless power system ; a digital control circuit ; a modulation circuit which communicates between rx and tx . a wireless power system c an be constructed easily without the control of a mcu because the tc776 5 wbg includes a digital control circuit which can operate in standalone mode. the digital control circuit transmits the received power information to the tx after some calculations. by using the tc776 5 wbg as rx , the tx can take advantage of the received power information sent by the rx and a wireless power system can be constructed including fod detection. figure 8 . 2 general outline of r x with the tc7765 wbg tx coil tx pad rx coil dc input dc output communication adjoin rx pad power com1 ac1 ac2 com2 vout pvdd en scl sda pgnd TC7765WBG vdd45
tc776 5 wbg 2015 - 1 1 - 0 4 10 8.3 control of tc7765 wbg 8.3.1 basic operation the tc7765 wbg incorporates a digital control circuit to realize communication with a tx . the TC7765WBG starts communication using wpc communication protocol when it receive s power f r om a tx . a fter entering the power transfer phase, the output switch turne s on . and stat signal turns t o l . the condition of enabling output is when en is h or open . figure 8.3 shows a basic operation sequence. figure 8 . 3 basic operation ( u sing en control) pvdd vout en stat uvlo vout on stat = l l cep : 0 en = h or open automatic start en = l ept transmit (n- ch ope n drain ou tpu t ) ept transmit external control of en off cep : - 4
tc776 5 wbg 2015 - 1 1 - 0 4 11 8.4 control state m achine the state machine of the tc776 5 wbg consists of shutd o wn mode , startup mode , output mode and ovp mode. the w ireless power system starts operation when transmitter s tx coil and the TC7765WBGs rx coil are adjoined . the state transition diagram of the wireless feeding control of the tc776 5 wbg is shown in the figure 8.4 . the operation state of each circuit in each mode is shown in the table 8.1 . config&id phase freq_det phase ping phase vrect_setup phase shutdown ovp output startup normal freqency complete transmission complete transmission - 4 Q cep Q 0 por release por detect en=l uvlo detect or ocp detect or en=l ovp detect por detect figure 8 . 4 state transition diagram of tc7765 wbg wireless power supply control
tc776 5 wbg 2015 - 1 1 - 0 4 12 table 8 . 1 operating condition for each mode w ireless charge control mode rectifier circuit p ackets (header values) vout output uvlo tsd i 2 c control stat output shutdown d iode bridge rectification - off v alid i nvalid invalid hi - z startup freq_det d iode rectification na off v alid v alid v alid hi - z ping d iode rectification 01h, 02h off v alid v alid v alid hi - z config&id d iode rectification 51h, 71h off v alid v alid v alid hi - z vrect_setup d iode rectification 02h, 03h 04h off v alid v alid v alid hi - z ou t put d iode rectification or synchronous rectification 02h, 03h, 04h on v alid v alid valid l ovp d iode bridge rectifier + rect_clamp 0 2 h off v alid v alid valid hi - z 8.4.1 shutdown mode shutdown mode is the status with out detection of wired or wireless power supply. the detection judgment whether wireless power supply is on or not is done by internal monitoring of the pvdd terminal voltage (vrect ; the voltage generated by rectifying the rf wireless power ). when the vrect is below the uvlo rele ase voltage, tc7765 wbg enters shutdown mode . in shutdown mode , t he digital control circuit, communication circuit and regulator circuits are stopped. when the uvlo is released, tc7765 wbg starts to operate the wireless power supply control and goes to sta rtup mode . 8.4.2 startup mode startup mode is the status when the tc7765 wbg detects wireless power, in which it certificates with tx and stabilize s vrect. the status has 4 phases which automatically transit in the following sequence : freq_det phase , ping phase ping phase , config&id phase and vrect_setup phase . in the startup mode the rectifier circuit works as diode rectifier in which the low - side mosfet s are fixed to off and only the high - side mosfet s work. the condition of shifting to output mode are : over two cep have transmitted to tx, cep value is from - 4 to zero. (1) freq_det phase in the freq_det phase , tc7765 wbg determines if the tx is compliant to the qi standard . after uvlo is released, tc7765 wbg starts detection of the frequency on ac 1 and ac2. when the range of the frequency is over 8 0 khz, tc7765 wbg considers that the frequency is stable. after confirming both the proper frequency and frequency stability, tc7765 wbg shifts to the ping phase .
tc776 5 wbg 2015 - 1 1 - 0 4 13 (2) ping phase in the ping phase , tc776 5 wbg notifies detection of wireless power supply to the tx. tc776 5 wbg measures the rectifier output vrect to determine its received power and sends a packet including header (01h) and the result of the received power calculation to the tx. after that the tc776 5 wbg automatically transitions to the config&id phase . in case of en=l, TC7765WBG sends end power transfer packet (data : charge complete) instead of header 01h. (3) config&id phase in the config&id phase , tc7765 wbg sends rx information to the tx . after it ha s elapsed in this phase, tc7765 wbg sends a packet including header (71h), wpc version, maker code and serial code. subsequently, after it send s a packet includ ing header (51h), received power and timing code measured by the tc7765 wbg. then tc7765 wbg automa tically shifts to vrect_setup phase . (4) vrect_setup phase in the vrect_setup phase , vrect is converged to its target value. after it ha s elapsed in this phase, tc7765 wbg calculates an error value . after , tc7765 wbg sends a packet including header (03h) and control error packet (cep) including the error value . the condition of shifting to output mode are : over two cep have transmitted to tx, cep value is from - 4 to zero. 8.4.3 output mode in the output phase , tc7765 wbg provides power received from a wireless power supply to the load. in this mode, vrect is controlled by tx which is receiving cep from TC7765WBG. periodically , the tc7765 wgb calculates the received power and sends a packet including header (04h) and received power. maximum output curren t is 1.0 a. ocp current (iocp) is set to 1.3 a. TC7765WBG sends ept (data : over current) when over current is detected. 8.4.4 ovp mode this function is to avoid overvoltage of vrect by the over voltage detection function of vrect and the rect_clamp function. if vrect exceeds 15 v, tc7765 wbg judges it as an over voltage. in such a case the tc7765 wbg connects ac1 and ac2 to gnd through external capacitors by switching clmp1 and clmp2 from hi - z to gnd. the rx coil current flows through the capacitors, so that tc776 5 wbg can reduce vrect. when vrect is less than 10v, from ovp mode is canceled. 8.4.5 operation stop two methods can be used t o stop the wireless power supply operation : ept (end power transfer) messages and the communication timeout. when tc7765 wbg activates any of its protection functions, it transmits an ept message to the tx . the tx then stops its power transmission. the communication timeout means that the tx does not receive any packet which tc7765 wbg transmitted for a fixed period. then the tx stops powe r transmission automatically .
tc776 5 wbg 2015 - 1 1 - 0 4 14 9. descriptions of functional details 9.1 communication function of the wireless power system in the startup mode, when the uvlo is released and the frequency of rectifier is more than 80 khz , the input is judged normal and communication (p ing phase) of the wireless power system automatically starts. 9.1.1 ask modulation c apacitors are connected between com1 and ac1 and between com2 and ac2. tc7765 wbg communicate with tx by ask modulation. t he coil current is overlapped with the signals that tc7765 wbg controls capacity load. figure 9 . 1 c onnection diagram of ask modulation ls cs cd ac 1 ac 2 tx module rx module com 1 com 2 ccm ccm rectif ier ask modulation con tro l circuit
tc776 5 wbg 2015 - 1 1 - 0 4 15 tclk tclk = 0 . 5 4 % [ ms ] one one one one z ero z ero z ero z ero start b 1 b 3 b 4 b 0 b 2 b 5 b 6 b 7 parity stop preamble header message checksum 9.1.2 c ommunication protocol (1) bit encoding scheme bit chart of communication is as follows. figure 9 . 2 example of the differential bi - phase encoding (2) byte encoding scheme byte chart of communication is as follows. start bit : "zero", stop bit : one . the order of the data bits is lsb first. figure 9 . 3 example of the asynchronous serial format (3) packet structure packets of communication consist of four parts; preamble, header, message, and checksum. preamble : 11bit (default) of one continuously. header : i ndicates the kind of packet and specifies the size of the me ssage that will be sent next. message : d ata of each packet type. checksum : xor value of header and message. checksum = header + message(0) + message(1) + + message (last) figure 9 . 4 packet format
tc776 5 wbg 2015 - 1 1 - 0 4 16 9.1.3 communication packets the tc7765 wbg transmits packet s according to the following definitions . ? ping phase (1) signal strength packet (01h) table 9 . 1 strength packet signal strength value : i t indicates the strength of the coupling between primary side and secondary side, which is calcu l ated by moni t o r ing vrect. ? config & id phase (2) i dentification packet (71h) table 9 . 2 identification packet major version : fixed to 01h minor version : fixed to 01h manufacturer code : indicates m anufacture code. t he code of toshiba is 0033h . ext : fixed to ext = 0 basic device identification : indicates the individual device id. packet header b7 b6 b5 b4 b3 b2 b1 b 0 signal strength packet 01h b0 signal strength value packet header b7 b6 b5 b4 b3 b2 b1 b 0 i dentification packet 71h b0 major version minor version b1 (msb) manufacturer code b2 (lsb) b3 ext (msb) b4 basic device identifier b5 b6 (lsb)
tc776 5 wbg 2015 - 1 1 - 0 4 17 (3) configuration packet (51h) table 9 . 3 configuration packet power class : 00h maximum power : 0ah (5 w) prop : 00h count : 00h window side : 04h window offset : 01h ? vrect_setup phase / standby phase (4) control error packet (03h) table 9 . 4 control error packet (5) received power packet (04h) table 9 . 5 received power packet received power value : indicates r eceived p ower including fod compensation. packet header b7 b6 b5 b4 b3 b2 b1 b 0 configuration packet 51h b0 power class maximum power b1 reserved b2 prop reserved count b3 window size window offset b4 reserved packet header b7 b6 b5 b4 b3 b2 b1 b 0 control error packet 03h b0 control error value packet header b7 b6 b5 b4 b3 b2 b1 b 0 received power packet 04h b0 received power value
tc776 5 wbg 2015 - 1 1 - 0 4 18 (6) end power transfer packet (02h) table 9 . 6 end power transfer packet end power transfer value : signal of end power transfer is transmitted according to table 9.7 . table 9 . 7 end power transfer value reason value condition unknown 00h unused charge complete 01h when w ireless charging off due to en = ? l ? internal fault 02h u nused over temperature 03h internal and e xternal o ver t emperature d etection over voltage 04h a t the detection of over voltage limitation over current 05h a t the detection of over current limitation battery failure 06h unused reconfigure 07h u nused no response 08h unused packet header b7 b6 b5 b4 b3 b2 b1 b 0 end power transfer packet 02h b0 end power transfer value
tc776 5 wbg 2015 - 1 1 - 0 4 19 9.2 rectifier circuit 9.2.1 rectifier modes the rectifier circuit has 3 modes : synchronous rectification, diode rectification, and diode bridge mode. TC7765WBG automatically switches the modes. in shutdown mode, the rectifier operates in the diode bridge mode. in this mode, all mosfets are fixed to off and the rectifier operates ov er the mosfets body diode. in startup mode, the rectifier operates in the diode rectifier mode. in this mode, the low side mosfets are fixed to off. the rectifier operates by turning on and off only the high side mosfets. in output mode, the rectifier op erates in the synchronous rectification mode by turning on and off all mosfets. when output current is low, the rectifier operates in the diode rectifier mode. 9.2.2 rect_clamp function the rect_clamp function suppresses over voltage s o f vrect. the clamping functions circuitry can be seen in f igure 9.5 . excessive coil current potentially generating an over voltage at the internal recitfier output will be shunted to gnd through a capacitive load connected to the ics clmp terminals and the ic inte rnal mosfets. this suppresses the excessive rise of vrect. figure 9 . 5 c onnection diagram of clamp circuit + ls cs ac1 ac2 + clp clp clmp1 clmp2 + rectifier circuit clamp control circuit
tc776 5 wbg 2015 - 1 1 - 0 4 20 9.3 fod function the fod function is used to calculate losses of received power in the mobile device . TC7765WBG can revise the actual received power , measured by the rectifier current, with two external resistor s in the fod and offset terminal s . 9.3.1 fod t erminal i t is possible to change the slope of received power . c onnect resistor (0 to 1.25 k ) to gnd. 9.3.2 offset t erminal i t is possible to change the offset of received power . c onnect resistor (0 to 20 k ) to gnd.
tc776 5 wbg 2015 - 1 1 - 0 4 21 9.4 protection functions 9.4.1 under voltage lockout (uvlo) function under voltage lockout (uvlo) function avoids errors caused by too low vrect voltages. rectifying circuit uvlo detection condition is that the voltage of vrect falls below 2.6 v (typ.). uvlo function is released when the voltage of vrect exceeds 2.7 v (typ.). 9.4.2 over voltage detection (wpt_ovp) function over voltage detection (wpt_ovp) function avoids errors caused by too high vrect voltages. detection condition of wpt_ovp function is that the voltage of pvdd exceeds 15v (typ.). when wpt_ovp function w orked, TC7765WBG transmit overvoltage ept three times and finish communication control of the wireless power. in addition, when vrect is over 15 v, the clamping circuit of the rectifier is turned on, and a clamping circuit is off when vrect is less than 10 v. 9.4.3 over current protection (ocp) function over current detection (ocp) function is a function to control an output current. a detection condition of the ocp function is to exceed a limited output current. the ocl detection current is 1.3 a (typ.). 9.4.4 thermal shutdown (tsd) function thermal shutdown (tsd) function avoids the ic destruction caused by rising chip internal temperature. the detection condition of tsd function is that the internal temperature exceeds 150c (typ.). when tsd is detected, the o utput of ldo is turned off. in case the internal temperature falls below 130c (typ.), tsd function is released automatically and ldo is turned on again. in case the tsd status continues for 200ms or more, the output of the ldo turns off and power transmis sion is finished by transmitting an ept message to the tx (03h : over temperature).
tc776 5 wbg 2015 - 1 1 - 0 4 22 10. a bsolute maximum ratings (ta = 25 c) table 10. 1 a bsolute maximum ratings c haracteristics s ymbol r ating u nit remarks s upply voltage vrect max - 0.3 to 18 v (note 1) i nput voltage (1) v i1 - 0.3 to 18 v (note 2) i nput voltage (2) v i2 - 0.3 to 30 v (note 3) i nput voltage (3) v i3 - 0.3 to 8 v (note 4) i nput voltage ( 4 ) v i4 - 0.3 to 5.6 v (note 5) o perating temperature t opr - 40 to 85 c j unction temperature t j 1 50 c storage temperature t stg - 55 to 150 c note : the absolute maximum ratings of a semiconductor devices are a set of ratings that must not be exceeded, even for a moment. do not exceed any of these ratings. exceeding the rating(s) may cause the device to break down, damage, and may result injury by explosion or combus t ion. please use the ic wi t hin the specified operating ranges. in addition, please assume it ? pgnd = 0 v?. note 1 : appl ies to pvdd terminal only note 2 : appl ies to ac1, ac2, com1, com2, clmp1 , clmp2 and vout terminals note 3 : appl ies to test1 and test2 terminals note 4 : appl ies to vpp terminal note 5 : appl ies to terminal except above terminals
tc776 5 wbg 2015 - 1 1 - 0 4 23 11. electrical characteristics 11.1 dc characteristics common circuit, digital controller table 11 . 1 dc characteristics common circuit, digital controller ( unless otherwise specified, vrect = 7 v, pgnd = 0 v, ta = 25c ) characteristics symbol test condition min typ. max unit terminal operation voltage v ope 1 - 3 .5 - 15 v pvdd uvlo detection voltage v uvlo_on vrect = 7 v to 0 v 2.5 - 2.7 v pvdd uvlo release voltage v uvlo_off vrect = 0 v to 7 v - - 2.9 v pvdd quiescent current i cc vrect = 7 v ac1 = ac2 = open 5 v ldo off - 2.5 6.0 ma pvdd input voltage high level v ih 1 - 1.4 - - v en low level v il 1 - - - 0.4 input current high level i ih1 v ih1 = v out45 20 - 75 a en low level i il1 v il1 = gnd - 0.6 - 0.6 output voltage low level v ol1 i out = - 1 ma 0 - 0.4 v stat vdd45 voltage vdd45 - 4.25 - 4.75 v vdd45 oscillator frequency f clk - 3.84 4.0 4.16 mhz tsd detection temperature t tsd_on - 135 150 165 c tsd release temperature t tsd_off - 120 - - c 11.2 dc characteristics rectifier, modulator table 11 . 2 dc characteristics rectifier, modulator ( unless otherwise specified, vrect = 7 v, pgnd = 0 v , ta = 25 c ) characteristics symbol test condition min typ. max unit terminal rectifier mosfet on- resistance high - side r onh_ac i ds = - 100 ma - 45 - m ac1, ac2 low - side r onl_ac i ds = 100 ma - 30 - clamper mosfet on- resistance r on_clmp i ds = 100 ma - - 1.5 clmp1, clmp2 modulator output resistance 1 r com1 com2 open resistance between com1 and pgnd 45 - 65 com1 modulator output resistance 2 r com 2 com1 open resistance between com2 and pgnd 45 - 65 com2
tc776 5 wbg 2015 - 1 1 - 0 4 24 11.3 dc characteristics of output table 11 . 3 dc characteristics output ( unless otherwise specified, pgnd = 0 v , ta = 25 c ) characteristics symbol test condition min typ. max unit terminal oc p current i oc p 1 set_ocl = 11b 1.1 1.3 1.5 a vout discharge resistance r dchg - - 8 - k vout
tc776 5 wbg 2015 - 1 1 - 0 4 25 11.4 ac characteristics i 2 c interface table 11 .4 a c characteristics unless otherwise specified, vrect = 7 v, pg n d = 0 v, ta = 2 5 c characteristics symbol min typ. max unit operation clock frequency f scl - - 400 khz hold time of repeated start t hd: sta 0.6 - - s setup time of repeated start t su : sta 0.6 - - s data hold time t hd;dat 0 - 0.9 s data setup time t su;dat 100 - - ns low term of scl signal t low 1.3 - - s high term of scl signal t high 0.6 - - s t su;sta t hd;sta scl sda t hd;sta t low t hd;dat t high t su;dat
tc776 5 wbg 2015 - 1 1 - 0 4 26 12. application circuit figure 12 . 1 application circuit com 1 clmp 1 clmp 2 com 2 ac 2 ac 1 tc 7765 wbg stat sda scl en output rx coil vout test 1 test 2 pvdd pgnd 10 f 2 vpp vdd 45 1 . 0 f fod offse t mcu cmz 15
tc776 5 wbg 2015 - 1 1 - 0 4 27 13. package dimensions s - xflga28 - 0304 - 0.50 - 001 weight : 1 0 mg (typ. ) unit : mm
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product is neither intended nor warranted for use in equipments or systems that require extraordinarily high levels of quality and/or reliability, and/or a malfunction or failure of which may cause loss of human life, bodily injury, serious property damage and/or serious public impact ( " unintended use " ). except for specific applications as expressly stated in this document, unintended use includes, without limitation, equipment used in nuclear facilities, equipment used in the aerospace indu stry, medical equipment, equipment used for automobiles, trains, ships and other transportation, traffic signaling equipment, equipment used to control combustions or ex plosions, safety devices, elevators and escalators, devices related to electric power, and equipment used in finance - related fields. if you use product for unintended use, toshiba assumes no liability for product. for details, please contact your toshiba sales representative. ? do not disassemble, analyze, reverse - engineer, alter, modify, translate or copy product, whether in whole or in part. ? product shall not be used for or incorporated into any products or systems whose manufacture, use, or sale is prohibited unde r any applicable laws or regulations. ? the information contained herein is presented only as guidance for product use. no responsibility is assumed by toshiba for any infringement of patents or any other intellectual property rights of third parties that may result from the use of product. n o license to any intellectual proper ty right is granted by this document, whether express or implied, by estoppel or otherwise. ? absent a written signed agreement, except as provided in the relevant terms and conditions of sale for product, and to the maximum extent allowable by law, toshib a (1) assumes no liability whatsoever, including without limitation, indirect, consequential, special, or incidental damages or loss, including without limitation, loss of profits, loss of opportunities, business interruption and loss of data, and (2) disc laims any and all express or implied warranties and conditions related to sale, use of product, or information, including warranties or conditions of merchantability, fitness for a particular purpose, accuracy of information, or noninfringement. ? do not u se or otherwise make available product or related software or technology for any military purposes, including without limitat ion, for the design, development, use, stockpiling or manufacturing of nuclear, chemical, or biological weapons or missile technol o gy products (mass destruction weapons). product and related software and technology may be controlled under the applicable expor t laws and regulations including, without limitation, the japanese foreign exchange and foreign trade law and the u.s. export ad ministration regulations. export and re - export of product or related software or technology are strictly prohibited except in compliance with all applicable export laws and regulations. ? please contact your toshiba sales representative for details as to e nvironmental matters such as the rohs compatibility of product. please use product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled su bstances, including without limitation, the eu rohs directive. tosh iba assumes no liability for damages or losse s occurring as a resul t of noncompliance w ith applicable laws and regulations.

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