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FUJITSU SEMICONDUCTOR DATA SHEET
DS04-27700-2E
ASSP For Power Supply Applications (Lithiumion Battery Chargers)
DC/DC Converter IC (High Precision with Constant-current Function)
MB3813A/MB3833A/MB3843
s DESCRIPTION
The FUJITSU MB3813A/33A/43 is a pulse width modulation (PWM) DC/DC converter IC with independent output voltage and current setting capability. The use of on-chip output setting resistance enables high precision output voltage control. Also, an output voltage switching feature for use with either graphite-electrode or coke-electrode lithium-ion batteries makes this IC ideal for internal battery chargers in notebook personal computers and similar applications. Cell count 3-cell 2-cell 1-cell 8.4 V/8.2 V 4.2 V/4.1 V Output voltage 12.6 V/12.3 V MB3813A MB3833A MB3843 Part number
s FEATURES
* * * * * Output setting resistance is on-chip for high precision output voltage: 1.0% SEL pin enables output voltage selection High precision reference voltage source: 2.5 V 1.0% High frequency operating capability: max. 500 kHz On-chip current detector amplifier with wide in-phase input voltage range: 0 V to VCC
(Continued)
s PACKAGE
16-pin Plastic SSOP
(FPT-16P-M05)
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MB3813A/MB3833A/MB3843
(Continued) * On-chip standby function * On-chip input voltage detector circuit * On-chip soft start control circuit * On-chip output overshoot protection circuit for rapid load changes * On-chip totem-pole output circuits for P-ch. MOS FET devices
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MB3813A/MB3833A/MB3843
s PIN ASSIGNMENT
(Top view)
Vin1 : 1 IN1 : 2 IN2 : 3 -IN2 : 4 -IN1 : 5 FB : 6 CTL : 7 Vin2 : 8
16 : GND 15 : OUT 14 : VCC 13 : CT 12 : RT 11 : CS 10 : SEL 9 : VREF
(FPT-16P-M05)
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MB3813A/MB3833A/MB3843
s PIN DESCRIPTION
Pin no. 1 2 3 4 5 6 7 8 9 10 Symbol Vin1 IN1 IN2 -IN2 -IN1 FB CTL Vin2 VREF SEL I/O I I I I I O I I O I Descriptions Input voltage detector block (VLDET) input pin Current detector amplifier (Current Amp.) input pin Output voltage feedback input pin Error amplifier (Error Amp.2) inverted input pin Error amplifier (Error Amp.1) inverted input pin Error amplifier (Error Amp.1, 2 common) output pin Power supply control pin An "L" level signal input to the CTL pin sets the IC in standby mode. DC/DC converter charging current setting input pin Reference voltage output pin Output voltage switching pin "L" level output voltage: MB3813A 12.6 V MB3833A 8.4 V MB3843 4.2 V "H" level output voltage: MB3813A 12.3 V MB3833A 8.2 V MB3843 4.1 V Soft start capacitor connection pin Triangular wave frequency setting resistor connection pin Triangular wave frequency setting capacitor connection pin Power supply pin Totem-pole output pin Ground pin
11 12 13 14 15 16
CS RT CT VCC OUT GND
-- -- -- -- O --
4
-IN2 4 10 SEL
- + + - OUT 15 100 k VCC 14
2
s BLOCK DIAGRAM
IN1
+ x25 -
Vin2
8
3
IN2 - + +
R1 *1
5
-IN1
R2 2.5 k
2.44 V 2.5 V 2.0 V 1.0 V
GND 16
FB
6
1 A
*1: bias V CC *2:
CS
11 + -
Vin1
R3 *2
1
MB3813A 10.1 k MB3833A 5.9 k MB3843 1.7 k MB3813A 194 k MB3833A 120 k MB3843 100 k (2.5 V) 2.5 V
R4 25 k
1.26 V 7 CTL 12 RT 13 CT 9 VREF (16 pins)
MB3813A/MB3833A/MB3843
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MB3813A/MB3833A/MB3843
s ABSOLUTE MAXIMUM RATINGS
Parameter Power supply voltage Input voltage Control input voltage Select input voltage Output current Peak output current Allowable dissipation Storage temperature Symbol VCC VIN VCTL VSEL IO IO PD Tstg Ta +25C -- Condition -- Vin1, IN1, IN2 -- -- -- Duty 5% (t = fOSC x Duty) Value Min. -- -- -- -- -- -- -- -55 Max. 20 20 20 20 50 500 440* +125 Unit V V V V mA mA mW C
* : When mounted on a 10 cm-square dual-sided epoxy base board WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current, temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.
s RECOMMENDED OPERATING CONDITIONS
Parameter Symbol Condition MB3813A Power supply voltage Reference voltage output current Input voltage Control input voltage Select input voltage Peak output current Oscillator frequency Soft start capacitance Timing resistance Timing capacitance Operating temperature VCC MB3833A MB3843 IOR VIN VIN VCTL VSEL IO fOSC CS RT CT Ta -- Vin1, IN1, IN2 Vin2 -- -- Duty 5% (t = fOSC x Duty) -- -- -- -- Value Min. 12 8 7 -1 0 0 0 0 -300 10 -- 10 100 -30 Typ. 16 16 16 -- -- -- -- -- -- 200 0.1 15 330 25 Max. 18 18 18 0 18 2.5 18 18 300 500 1.0 100 10000 85 Unit V V V mA V V V V mA kHz F k pF C
WARNING: Recommended operating conditions are normal operating ranges for the semiconductor device. All the device's electrical characteristics are warranted when operated within these ranges. Always use semiconductor devices within the recommended operating conditions. Operation outside these ranges may adversely affect reliability and could result in device failure. No warranty is made with respect to uses, operating conditions, or combinations not represented on the data sheet. Users considering application outside the listed conditions are advised to contact their FUJITSU representative beforehand. 6
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MB3813A/MB3833A/MB3843
s ELECTRICAL CHARACTERISTICS
(VCC = Vin1 = +16 V, VSEL = 0 V, Ta = +25C) Parameter
Output voltage Reference voltage block (Ref) Input stability Load stability Under voltage lockout circuit block (UVLO) Threshold voltage Hysteresis voltage Threshold voltage Symbol VREF Line Line Line Load VTH VH VTH VTH VTH VH Input voltage detector block (VLDET) Hysteresis voltage VH VH IIH Input current IIH IIH IIL Soft start block (UVLO) Triangular wave oscillator block (OSC) Charge current Oscillator frequency ICS Pin no. 9 9 9 9 9 9 9 1 1 1 1 1 1 1 1 1 1 11 Vin1 = 0 V -- Vin1 = 16 V -- Vin1 = "L" "H"
Condition
-- VCC = 12 V to 18 V VCC = 8 V to 18 V VCC = 7 V to 18 V VREF = -0 A to -500 A VREF = "L" "H" --
Value Min.
2.475 -- -- -- -- 1.8 -- 10.2 6.7 5.8 -- -- -- -- -- -- -1.0 -1.4
Typ.
2.500 1.0 1.0 1.0 3.0 2.0 0.2 11.0 7.3 6.3 1.0 0.7 0.57 150 270 310 -- -1.0
Max.
2.525 10.0 10.0 10.0 10.0 2.2 0.35 11.8 7.9 6.8 2.0 1.4 1.2 300 540 620 1.0 -0.6
Unit V mV mV mV mV V V V V V V V V A A A A A kHz V V V V V V
Remarks
MB3813A MB3833A MB3843
MB3813A MB3833A MB3843 MB3813A MB3833A MB3843 MB3813A MB3833A MB3843
fOSC VT1 VT1
15 3 3 3 3 3 3
CT = 330 pF, RT = 15 k
180 12.474
200 12.60 8.40 4.20 12.60 8.40 4.20
220 12.726 8.484 4.242 12.79 8.53 4.26
MB3813A MB3833A MB3843 MB3813A MB3833A MB3843
FB = 1.5 V, SEL = 0 V
8.316 4.158 12.41
Error amplifier (Error Amp.1)
Threshold voltage
VT1 VT1 VT1 VT1
FB = 1.5 V, Ta = -30C to +85C
8.27 4.13
(Continued)
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MB3813A/MB3833A/MB3843
(VCC = Vin1 = +16 V, VSEL = 0 V, Ta = +25C) Parameter
Symbol VT2 VT2 Threshold voltage VT2 VT2 VT2 VT2 Line Input stability Error amplifier (Error Amp.1) Line Line IIN2 IIN2 Input current IIN2 IIN2 IIN2 IIN2 R1 Input resistance R1 R1 R2 Error amplifier (Error Amp.2) Input bias current Input offset voltage Voltage gain Frequency bandwidth Error amplifiers (Error Amp.1,2 common) Output voltage Output source current Output sink current IB VIO AV BW VOH VOL ISOURCE Pin no. 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 5 8 5 -- -- 6 6 6 FB = 1.5 V Vin2 FB = 1.5 V DC AV = 0 dB -- -- -- -- VCC = 13 V to 18 V, output 12.6 V VCC = 9 V to 18 V, output 8.4 V VCC = 7 V to 18 V, output 4.2 V IN1 = 12.7 V, IN2 = 12.6 V IN1 = 8.5 V, IN2 = 8.4 V IN1 = 4.3 V, IN2 = 4.2 V Vin1 = 0 V, IN2 = 12.6 V Vin1 = 0 V, IN2 = 8.4 V Vin1 = 0 V, IN2 = 4.2 V FB = 1.5 V, Ta = -30C to +85C FB = 1.5 V, SEL = 5 V
Condition
Value Min.
12.177 8.118 4.059 12.11 8.07 4.04 -- -- -- -- -- -- -1.0 -1.0 -1.0 7.0 4.1 1.2 1.7 -400 -- -- -- 2.3 -- --
Typ.
12.30 8.20 4.10 12.30 8.20 4.10 2.5 2.5 2.5 1.0 1.0 1.0 -- -- -- 10.1 5.9 1.7 2.5 -30 -- 100* 800* 2.5 0.8 -120
Max.
12.423 8.282 4.141 12.49 8.33 4.16 10.0 10.0 10.0 2.0 2.0 2.0 1.0 1.0 1.0 13.2 7.7 2.3 3.3 -- 5 -- -- -- 0.9 -60
Unit V V V V V V mV mV mV mA mA mA A A A k k k k nA mV dB kHz V V A mA
Remarks MB3813A MB3833A MB3843 MB3813A MB3833A MB3843 MB3813A MB3833A MB3843 MB3813A MB3833A MB3843 MB3813A MB3833A MB3843 MB3813A MB3833A MB3843
ISINK
6
FB = 1.5 V
0.6
2.0
--
* : Standard design value
(Continued)
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MB3813A/MB3833A/MB3843
(VCC = Vin1 = +16 V, VSEL = 0 V, Ta = +25C) Parameter
Symbol VT1 VT1 VT1 VT1 VT1 VT1 Current detector amplifier block (Current Amp.) VT2 VT2 IIN1 Input current IIN1 IIN1 In-phase input voltage range Voltage gain PWM Threshold comparator block voltage (PWM) ON resistance Output block (OUT) Output voltage Pin No. 2 2 2 2 2 2 2 2 2 2 2
Condition
Vin2 = IN2 = 3 V to VCC 2.5 V VT1 = VTH - IN2 Vin2 = 0.75 V Vin2 = IN2 = 3 V to VCC 2.5 V VT1 = VTH - IN2 Vin2 = 0.75 V Vin2 = IN2 = 3 V to VCC 2.5 V VT1 = VTH - IN2 Vin2 = 0.75 V Vin2 = 2.5 V IN2 = 0 V VT2 = VTH - IN2 Vin2 = 0.75 V
Value Min.
90 20 90 20 90 20 50 5 -- -- --
Typ.
100 30 100 30 100 30 100 30 17 17 17
Max.
110 40 110 40 110 40 150 55 34 34 34
Unit mV mV mV mV mV mV mV mV A A A V
Remarks MB3813A MB3813A MB3833A MB3833A MB3843 MB3843
Threshold voltage
IN1 = 12.7 V, IN2 = 12.6 V IN1 = 8.5 V, IN2 = 8.4 V IN1 = 4.3 V, IN2 = 4.2 V
MB3813A MB3833A MB3843
VCM
2
--
0
--
VCC
AV AV AV VT0 VT100 RON VOL
2 2 2 15 15 15 15 15
IN1 = 12.7 V, IN2 = 12.6 V IN1 = 8.5 V, IN2 = 8.4 V IN1 = 4.3 V, IN2 = 4.2 V Duty cycle = 0% Duty cycle = 100% OUT = -30 mA OUT = 100 mA VCC = 18 V, OUT = 18 V, CTL = 0 V
21 21 21 0.9 -- -- -- -1.0
25 25 25 1.0 2.0 12 1.0 --
29 29 29 -- 2.1 18 1.4 1.0
V/V V/V V/V V V
MB3813A MB3833A MB3843
V A
Standby ILO leak current Power supply operating mode Standby mode Input current
VON
7
CTL Voltage
2.0
--
18
V
Power supply control block (CTL)
VOFF IIH IIL
7 7 7
CTL Voltage CTL = 5 V CTL = 0 V
0 -- -1.0
-- 100 --
0.8 200 1.0
V A A
(Continued)
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MB3813A/MB3833A/MB3843
(Continued)
Parameter
12.3 V output mode Symbol Pin no. 10
(VCC = Vin1 = +16 V, VSEL = 0 V, Ta = +25C) Condition Value Min.
2.0
Typ.
--
Max.
18
Unit
Remarks
VON
V
MB3813A
8.2 V output VON mode
10
SEL voltage
2.0
--
18
V
MB3833A
4.1 V output mode
Output voltage selection block (SEL)
VON
10
2.0
--
18
V
MB3843
12.6 V output mode
VOFF
10 SEL voltage
0
--
0.8
V
MB3813A
8.4 V output VOFF mode 4.2 V output VOFF mode Input current IIH IIL
10 10 10 10
0 0
-- -- -- --
0.8 0.8 1.0 1.0
V V A A A
MB3833A MB3843
CTL = 5 V CTL = 0 V
-1.0 -1.0
Input current IIL when power supply OFF Standby current General Power supply current ICCS
10
VCC = 0 V, SEL = 5 V
-1.0
--
1.0
14
CTL = 0 V at output voltage "H" level
--
260
390
A mA
ICC
14
--
3.4
5.4
10
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MB3813A/MB3833A/MB3843
s TYPICAL CHARACTERISTICS
Reference voltage vs. Power supply voltage characteristics 5 Reference voltage VREF (V) 4 3 2 1 0 Vin1 = 20.5 V CTL = VCC Ta = +25C I OR = 0 mA Reference voltage vs. VREF load current characteristics 5 Reference voltage VREF (V) 4 3 2 1 0 0 5 10 15 Power supply voltage VCC (V) 20 0 10 20 30 40 VREF load characteristics I REF (mA) 50 Vin1 = VCC CTL = VCC Ta = +25C
Reference voltage vs. Temperature characteristics 2.0 Reference voltage VREF (%) 1.5 1.0 0.5 0.0 -0.5 -1.0 -1.5 -2.0 -40 -20 0 20 40 60 Temperature Ta (C) 80 100 Reference voltage VREF (V) VCC = Vin1 = 16 V CTL = 5 V 5 4 3 2 1 0
Reference voltage vs. Control voltage characteristics VCC = 16 V Ta = +25C IOR = 0 mA
0
5
10 15 Control voltage VCTL (V)
20
Control current vs. Control voltage characteristics 500 Control current ICTL (A) 400 300 200 100 0 0 5 10 15 Control current VCTL (V) 20 VCC = 16 V Ta = +25C
(Continued)
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MB3813A/MB3833A/MB3843
Error Amp. threshold voltage VT1 (%)
Error Amp. Threshold voltage VT2 (%)
Error amp. threshold voltage vs. Temperature characteristics 2.0 VCC = Vin1 = 16 V 1.5 CTL = 5 V SEL = 0 V 1.0 0.5 0.0 -0.5 -1.0 -1.5 -2.0 -40 -20 0 20 40 60 Temperature Ta (C) 80 100
Error amp. Threshold voltage vs. Temperature characteristics 2.0 VCC = Vin1 = 16 V CTL = 5 V 1.5 SEL = 5 V 1.0 0.5 0.0 -0.5 -1.0 -1.5 -2.0 -40 -20 0 20 40 60 Temperature Ta (C) 80 100
Error Amp. gain, phase vs. Frequency characteristics 40 30 Gain AV (dB) 20 10 0 -10 -20 -30 -40 1k 10 k 100 k 1M Frequency f (Hz) 180 135 90 Phase () 45 0 -45 -90 -135 -180 10 M 10 k 2V 1 F 10 k 2.4 k VREF - + + 4V 240 k
Error Amp.
Triangular wave oscillator frequency fOSC (Hz)
Triangular wave oscillator frequency fOSC (Hz)
Triangular wave frequency vs. RT resistance characteristics 1M VCC = V in1 = 16 V CTL = 5 V
Triangular wave frequency vs. CT capacitance characteristics 1M VCC = V in1 = 16 V CTL = 5 V
100 k
CT = 100 pF CT = 270 pF CT = 330 pF
100 k
RT = 15 k 10 k
10 k
CT = 1500 pF
1k 1k
10 k
100 k
1M
1k 10 p
100 p
RT resistance ()
1n 10 n CT capacitance (F)
100 n
(Continued)
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MB3813A/MB3833A/MB3843
(Continued)
Triangular wave oscillator frequency fOSC (kHz)
Triangular wave oscillator frequency fOSC (kHz)
Triangular wave frequency vs. Power supply voltage characteristics 250 Data shown for 240 MB3843 Vin1 = 16 V 230 CTL = 16 V 220 RT = 15 k, CT = 330 pF 210 200 190 180 170 160 150 4 6 8 10 12 14 16 Power supply voltage VCC (V) 18 20
Triangular wave frequency vs. Temperature characteristics 250 VCC = Vin1 = 16 V CTL = 5 V 225 RT = 15 k, CT = 330 pF 200
175
150 -40
-20
0
20 40 60 Tenperature Ta (C)
80
100
Triangular wave maximum amplitude voltage (V)
Triangular wave maximum amplitude voltage vs. Triangular wave frequency characteristics 2.5 VCC = Vin1 = 16 V CTL = 5 V
Power supply current vs. Power supply voltage characteristics 10 Power supply current ICC (mA) Vin1 = VCC Ta = +25C 8 6 4 2 0 0 CTL = 5 V
2.0
1.5
MB3843
MB3833A
MB3813A
1.0
CTL = 0 V 5 10 15 Power supply voltage VCC (V) 20
0.5 1k
10 k 100 k 1M Triangular wave frequency fOSC (HZ)
10 M
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MB3813A/MB3833A/MB3843
s FUNCTIONAL DESCRIPTION
1. Switching Regulator Block
(1) Reference voltage circuit (Ref) The reference voltage circuit uses the voltage supply from the VCC pin (pin 14) to generate a temperature compensated, stable voltage ( 2.50 V) for use as the reference voltage for the internal circuits of the IC chip. It is also possible to supply a reference voltage output of up to 1 mA to external circuits through the VREF pin (pin 9). (2) Triangular wave oscillator circuit (OSC) By connecting the CT pin (pin 13) and RT pin (pin 12) respectively to a capacitance and resistance for timing, a triangular oscillator waveform can be generated. The triangular wave is input to the PWM comparator circuits on the IC. At the same time, it can also be supplied to an external device from the CT terminal. (3) Error amplifier circuit (Error Amp.1) The error amplifier circuit is used to detect the output voltage from the switching regulator and produces the PWM control signal. No external resistance is required at the error amplifier inversion input pin, because the output voltage setting resistance is connected within the IC. The output voltage settings are defined as: MB3813A 12.6 V/12.3 V, MB3833A 8.4 V/8.2 V, MB3843 4.2 V/4.1 V, the optimum levels respectively for use with 3-cell, 2-cell and 1-cell lithium-ion batteries. Also, by connecting feedback resistance and capacitance between the error amplifier FB pin (pin 6) and -IN pin (pin 5), it is possible to set the desired level of loop gain to provide stabilized phase compensation to the system. The CS pin (pin 11) can be connected to a soft start capacitor to prevent current surges at startup. The soft start is detected by the error amplifier, which provides a constant soft start time independent of output load. (4) Current detector amplifier circuit (Current Amp.) The current detector amplifier provides 25 x amplification of the voltage drop between the two ends of the output sensor resistor (RS) in the switching regulator, that occurs due to the flow of the charging current. This voltage drop is compared to the voltage at the Vin2 pin (pin 8) in the next stage error amplifier circuit (Error Amp.2), and used to control the charging current. (5) Power supply control circuit (CTL) An "L" level signal input to the CTL pin (pin 7) places the IC in standby mode. In standby mode, all circuits other than input detection circuits are switched off. (6) PWM comparator circuit (PMW Comp.) This is a voltage-pulse width conversion circuit that controls the output duty of the error amplifier circuits (Error Amp.1, 2) according to the output voltage. During intervals when the triangular waveform is lower than the eror amplifier output voltage, an external output transistor is switched on. (7) Output circuit (OUT) The output circuit uses a totem-pole configuration and is capable of driving an external P-ch. MOS FET device.
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MB3813A/MB3833A/MB3843
2. Output Voltage Switching Function
The SEL pin (pin 10) is capable of output levels of 4.2 V or 4.1 V per battery cell. * Output voltage settings by model SEL pin voltage level L H L H L H Model MB3813A MB3833A MB3843 Output voltage 12.6 12.3 8.4 8.2 4.2 4.1 Units V V V V V V
3. Protection Functions
(1) Input voltage detector circuit (VIDET) When the input voltage supply from the AC adapter or other source detected at the Vin1 pin (pin 1) falls below 11 V (MB3813A), or below 7.3 V (MB3833A), or below 6.3 V (MB3843), the internal reference voltage circuit switches off. (2) Under voltage lockout circuit (UVLO) Power surges at power-on, or momentary under-voltage situations can cause abnormal operation in a control IC, which may lead to damage or deterioration in systems. This circuit prevents abnormal peration during times of low voltage by using the supply voltage to detect the level of the internal reference voltage, and switching off the external output transistor to create a 100% rest interval. Once the supply voltage recovers to a level above the threshold voltage of the under voltage lockout circuit, operation is restored.
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MB3813A/MB3833A/MB3843
s METHOD OF SETTING THE CHARGING CURRENT
The charging current level (output limit current level) is set at the Vin2 pin (pin 8).
Charging current level (output limit current level) : IL (MAX) [A] = Vin2 (V) 25 x RS () RS: output sensing resistance
s METHOD OF SETTING THE SOFT START TIME
* At startup, the capacitor (Cs) connected to the CS pin (pin 11) begins charging. The error amplifier compares the soft start setting voltage, which is proportional to the CS pin voltage, to the output feedback voltage and produces a soft start by varying the ON duty at the OUT pin (pin 15). The soft start time can be determined by the formula below. * Because the CS pin voltage is input to the error amplifier, the soft start time setting is not dependent on the output current value.
Soft start time (time to output setting voltage VD) : ts [sec] = 2.5 x CS [F]
s ERROR AMP. BLOCK OVERSHOOT PROTECTION CIRCUIT
This built-in circuit responds to rapid fluctuations in charging current such as can occur when inserting or removing a chargeable battery, by clamping an inverted input signal (-IN1 or -IN2) from the error amps (Error Amp.1 or Error Amp.2) to suppress changes in output voltage.
s CTL, SEL PIN EQUIVALENT CIRCUITS
VCC CTL 7
SEL 10
1.4 V
16
-IN2 4 10 SEL
-
+
2 + x 25 - 100 k VCC 14 + - R1 OUT +
-
s APPLICATION EXAMPLE
VBATT
IN1
RS MTD20P03 33 H 0.1
Vin2
8
0 to 2.5 V
3
IN2
47 F 0.1 F 15 MBRS 130LT3 GND 16
220 F 4.7 F
+ + - -
5 R2 - + +
-IN1
39000 pF 2.44 V 2.5 V 2.0 V 1.0 V bias VCC
39000 pF
DC-IN (16 V)
10 k
10 k
FB
6
1 mA
CS
11 + - 1.26 V 2.5 V 7 CTL 15 k 12 RT 13 CT 330 pF (16 pins) 9 VREF MTD20P03: Product of Motorola Inc. MBRS130LT3: Product of Motorola Inc.
Vin1
R3
1
R4
(2.5 V)
MB3813A/MB3833A/MB3843
0.1 F
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MB3813A/MB3833A/MB3843
s REFERENCE DATA
Charging voltage vs. Charging current characteristics <MB3813A> Charging voltage VBATT (V) 14 12 10 8 6 4 2 0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
Charging current IL (A)
Charging voltage vs. Charging current characteristics Charging voltage VBATT (V) 14 12 10 8 6 4 2 0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
Charging current IL (A)
Charging voltage vs. Charging current characteristics Charging voltage VBATT (V) 14 12 10 8 6 4 2 0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
Charging current IL (A)
(Continued)
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MB3813A/MB3833A/MB3843
(Continued)
Soft start operation waveforms
<MB3813A> 15 VBATT (V) 10 Tek 5 0 CS (V) 4 2 0 CTL (V) 5 0 0 2V 100 ms 5V VCC = Vin = 16 V 5V CTL = 5 V CT = 330 pF RT = 15 k Vin2 = 2.5 V RL = 20 CS = 0.1 F
200
400
600
800
1000
t (ms) VCC = Vin = 16 V
15 VBATT (V) 10 Tek 5 0 CS (V) 4 2 0 CTL (V) 5 0 0 2V 100 ms 5V 5V CTL = 5 V CT = 330 pF RT = 15 k Vin2 = 2.5 V RL = 20 CS = 0.1 F
200
400
600
800
1000 t (ms) VCC = Vin = 16 V
15 VBATT (V) 10 Tek 5 0 CS (V) 4 2 0 CTL (V) 5 0 0 2V 100 ms 5V 5V CTL = 5 V CT = 330 pF RT = 15 k Vin2 = 2.5 V RL = 20 CS = 0.1 F
200
400
600
800
1000
t (ms)
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MB3813A/MB3833A/MB3843
s USAGE PRECAUTION
1. Device settings must not exceed absolute maximum ratings.
Usage under conditions exceeding absolute maximum ratings may permanently damage LSI devices. Note also that in normal operation usage within recommended operating conditions is preferred, and that the reliability of LSI devices may be adversely affected when used outside these conditions.
2. Devices should be used within recommended operating conditions.
Recommended operating conditions are recommended values within which the LSI device is warranted to operate normally. Rated values of electrical characteristics are warranted within the range of recommended operating conditions and within the conditions listed in the condition column for each parameter.
3. Printed circuit board ground lines should be designed in consideration of common impedance values. 4. Observe precautions against static electricity.
* Containers in which semiconductors are placed should either be protected against static electricity, or be of conductive material. * After devices are mounted, use conductive bags or conductive containers when storing or transporting printed circuit boards. * Working surfaces, tools and instruments should be properly rounded. * Workers should be grounded by a ground line with 250 k to 1 M resistance in series between the worker and ground.
s ORDERING INFORMATION
Part number MB3813APFV-G-BND MB3833APFV-G-BND MB3843PFV-G-BND Package 16-pin Plastic SSOP (FPT-16P-M05) Remarks
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MB3813A/MB3833A/MB3843
s PACKAGE DIMENSION
16-pin Plastic SSOP (FPT-16P-M05) * : These dimensions do not inclule resin protrusion.
* 5.000.10(.197.004)
1.25 -0.10 .049 -.004
+0.20 +.008
(Mounting height)
0.10(.004)
INDEX
* 4.400.10
(.173.004)
6.400.20 (.252.008)
5.40(.213) NOM
0.650.12 (.0256.0047)
0.22 -0.05 .009
+0.10 +.004 -.002
"A"
0.15 -0.02 .006 -.001
+0.05 +.002
Details of "A" part 0.100.10(.004.004) (STAND OFF)
4.55(.179)REF
0
10
0.500.20 (.020.008)
C
1994 FUJITSU LIMITED F16013S-2C-4
Dimensions in mm (inches)
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MB3813A/MB3833A/MB3843
FUJITSU LIMITED
For further information please contact:
Japan FUJITSU LIMITED Corporate Global Business Support Division Electronic Devices KAWASAKI PLANT, 4-1-1, Kamikodanaka Nakahara-ku, Kawasaki-shi Kanagawa 211-8588, Japan Tel: 81(44) 754-3763 Fax: 81(44) 754-3329
All Rights Reserved. The contents of this document are subject to change without notice. Customers are advised to consult with FUJITSU sales representatives before ordering. The information and circuit diagrams in this document are presented as examples of semiconductor device applications, and are not intended to be incorporated in devices for actual use. Also, FUJITSU is unable to assume responsibility for infringement of any patent rights or other rights of third parties arising from the use of this information or circuit diagrams. FUJITSU semiconductor devices are intended for use in standard applications (computers, office automation and other office equipment, industrial, communications, and measurement equipment, personal or household devices, etc.). CAUTION: Customers considering the use of our products in special applications where failure or abnormal operation may directly affect human lives or cause physical injury or property damage, or where extremely high levels of reliability are demanded (such as aerospace systems, atomic energy controls, sea floor repeaters, vehicle operating controls, medical devices for life support, etc.) are requested to consult with FUJITSU sales representatives before such use. The company will not be responsible for damages arising from such use without prior approval. Any semiconductor devices have an inherent chance of failure. You must protect against injury, damage or loss from such failures by incorporating safety design measures into your facility and equipment such as redundancy, fire protection, and prevention of over-current levels and other abnormal operating conditions. If any products described in this document represent goods or technologies subject to certain restrictions on export under the Foreign Exchange and Foreign Trade Law of Japan, the prior authorization by Japanese government will be required for export of those products from Japan.
http://www.fujitsu.co.jp/
North and South America FUJITSU MICROELECTRONICS, INC. Semiconductor Division 3545 North First Street San Jose, CA 95134-1804, USA Tel: (408) 922-9000 Fax: (408) 922-9179 Customer Response Center Mon. - Fri.: 7 am - 5 pm (PST) Tel: (800) 866-8608 Fax: (408) 922-9179
http://www.fujitsumicro.com/
Europe FUJITSU MIKROELEKTRONIK GmbH Am Siebenstein 6-10 D-63303 Dreieich-Buchschlag Germany Tel: (06103) 690-0 Fax: (06103) 690-122
http://www.fujitsu-ede.com/
Asia Pacific FUJITSU MICROELECTRONICS ASIA PTE LTD #05-08, 151 Lorong Chuan New Tech Park Singapore 556741 Tel: (65) 281-0770 Fax: (65) 281-0220
http://www.fmap.com.sg/
F9812 (c) FUJITSU LIMITED Printed in Japan
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