MB3813A Datasheet, PDF (8/22 Pages) Fujitsu Component Limited. – Lithium Ion Battery Charger DC/DC Converter IC (High Precision with Constant-current Function)

MB3813A/MB3833A/MB3843
(VCC = Vin1 = +16 V, VSEL = 0 V, Ta = +25°C)
Parameter
Symbol Pinno.
Condition
Value
Unit Remarks
Min. Typ. Max.
VT2
3
12.177 12.30 12.423 V MB3813A
VT2
3 FB = 1.5 V, SEL = 5 V
8.118 8.20 8.282 V MB3833A
Threshold
VT2
voltage
VT2
VT2
VT2
3
3
3
FB = 1.5 V,
Ta = –30°C to +85°C
3
4.059
12.11
8.07
4.04
4.10
12.30
8.20
4.10
4.141
12.49
8.33
4.16
V MB3843
V MB3813A
V MB3833A
V MB3843
Line
3
VCC = 13 V to 18 V, output
12.6 V
—
2.5 10.0 mV MB3813A
Input
stability
Line
3
VCC = 9 V to 18 V, output
8.4 V
—
2.5 10.0 mV MB3833A
Error amplifier
(Error Amp.1)
Line
3
VCC = 7 V to 18 V, output
4.2 V
—
2.5 10.0 mV MB3843
IIN2
3 IN1 = 12.7 V, IN2 = 12.6 V —
1.0
2.0 mA MB3813A
IIN2
3 IN1 = 8.5 V, IN2 = 8.4 V
—
1.0
2.0 mA MB3833A
Input
current
IIN2
3 IN1 = 4.3 V, IN2 = 4.2 V
—
1.0
2.0 mA MB3843
IIN2
3 Vin1 = 0 V, IN2 = 12.6 V –1.0
—
1.0 µA MB3813A
IIN2
3 Vin1 = 0 V, IN2 = 8.4 V
–1.0
—
1.0 µA MB3833A
IIN2
3 Vin1 = 0 V, IN2 = 4.2 V
–1.0
—
1.0 µA MB3843
R1
3
7.0 10.1 13.2 kΩ MB3813A
Input
R1
3
resistance
R1
3
—
4.1
5.9
7.7 kΩ MB3833A
1.2
1.7
2.3 kΩ MB3843
R2
5
—
1.7
2.5
3.3 kΩ
Error amplifier
Input bias
current
IB
(Error Amp.2)
Input offset
voltage
VIO
8 Vin2
5 FB = 1.5 V
–400 –30
—
—
— nA
5 mV
Voltage
gain
AV
— DC
— 100* — dB
Frequency
bandwidth
BW
— AV = 0 dB
— 800* — kHz
Error amplifiers
(Error Amp.1,2
common)
Output
voltage
Output
source
current
VOH
VOL
ISOURCE
6
—
6
—
6 FB = 1.5 V
2.3
2.5
—
V
—
0.8
0.9 V
— –120 –60 µA
Output sink
current
ISINK
6 FB = 1.5 V
0.6
2.0
— mA
* : Standard design value
(Continued)
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