MB3813A Datasheet, PDF (9/22 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.
VT1
2
Vin2 =
IN2 = 3 V to VCC ^{2.5 V}
90
100 110 mV MB3813A
VT1
2
VT1 = VTH – IN2 _{Vin2 =}
0.75 V
20
30
40 mV MB3813A
VT1
VT1
Threshold
voltage
VT1
VT1
2
Vin2 =
IN2 = 3 V to VCC ^{2.5 V}
2
VT1 = VTH – IN2 _{Vin2 =}
0.75 V
2
Vin2 =
IN2 = 3 V to VCC ^{2.5 V}
2
VT1 = VTH – IN2 _{Vin2 =}
0.75 V
90
100 110 mV MB3833A
20
30
40 mV MB3833A
90
100 110 mV MB3843
20
30
40 mV MB3843
Current detector
amplifier block
(Current Amp.)
VT2
VT2
2
IN2 = 0 V
Vin2 =
2.5 V
2
VT2 = VTH – IN2 _{Vin2 =}
0.75 V
50
100 150 mV
5
30
55 mV
IIN1
2 IN1 = 12.7 V, IN2 = 12.6 V —
17
34 µA MB3813A
Input current IIN1
2 IN1 = 8.5 V, IN2 = 8.4 V
—
17
34 µA MB3833A
IIN1
2 IN1 = 4.3 V, IN2 = 4.2 V
—
17
34 µA MB3843
In-phase
input
voltage
VCM
2
—
0
—
VCC
V
range
Voltage
gain
AV
2 IN1 = 12.7 V, IN2 = 12.6 V 21
25
29 V/V MB3813A
AV
2 IN1 = 8.5 V, IN2 = 8.4 V
21
25
29 V/V MB3833A
AV
2 IN1 = 4.3 V, IN2 = 4.2 V
21
25
29 V/V MB3843
PWM
comparator block
(PWM)
Threshold
voltage
VT0
VT100
15 Duty cycle = 0%
15 Duty cycle = 100%
0.9
1.0
—V
—
2.0
2.1 V
ON
resistance
RON
15 OUT = –30 mA
—
12
18 Ω
Output block
(OUT)
Output
voltage
VOL
15 OUT = 100 mA
—
1.0
1.4 V
Standby
leak current
ILO
15
VCC = 18 V, OUT = 18 V,
CTL = 0 V
–1.0
—
1.0 µA
CTL input
voltage
VON
Power supply
control block
Standby
mode
VOFF
(CTL)
Input
IIH
current
IIL
7 Active mode
7 Standby mode
7 CTL = 5 V
7 CTL = 0 V
2.0
—
18 V
0
—
0.8 V
—
100 200 µA
–1.0 —
1.0 µA
(Continued)
9