MB3813A Datasheet, PDF (7/22 Pages) Fujitsu Component Limited. – Lithium Ion Battery Charger DC/DC Converter IC (High Precision with Constant-current Function)

MB3813A/MB3833A/MB3843
s ELECTRICAL CHARACTERISTICS
Parameter
Symbol Pinno.
Condition
(VCC = Vin1 = +16 V, VSEL = 0 V, Ta = +25°C)
Value
Unit Remarks
Min. Typ. Max.
Reference
voltage block
(Ref)
Output
voltage
Input
stability
Load
stability
VREF
Line
Line
Line
Load
9
—
2.475 2.500 2.525 V
9 VCC = 12 V to 18 V
9 VCC = 8 V to 18 V
9 VCC = 7 V to 18 V
—
1.0 10.0 mV MB3813A
—
1.0 10.0 mV MB3833A
—
1.0 10.0 mV MB3843
9 VREF = –0 µA to –500 µA —
3.0 10.0 mV
Under voltage
Threshold
voltage
VTH
lockout circuit
block (UVLO)
Hysteresis
voltage
VH
VTH
Threshold
voltage
VTH
VTH
VH
Input voltage
detector block
Hysteresis
voltage
VH
(VLDET)
VH
IIH
Input
IIH
current
IIH
IIL
Soft start block Charge
(UVLO)
current
ICS
Triangular wave
oscillator block
(OSC)
Oscillator
frequency
fOSC
VT1
9 VREF = “L” → “H”
9
—
1
1 Vin1 = “L” → “H”
1
1
1
—
1
1
1 Vin1 = 16 V
1
1 Vin1 = 0 V
11
—
1.8
2.0
2.2 V
—
0.2 0.35 V
10.2 11.0 11.8 V MB3813A
6.7
7.3
7.9 V MB3833A
5.8
6.3
6.8 V MB3843
—
1.0
2.0 V MB3813A
—
0.7
1.4 V MB3833A
— 0.57 1.2 V MB3843
—
150 300 µA MB3813A
—
270 540 µA MB3833A
—
310 620 µA MB3843
–1.0 —
1.0 µA
–1.4 –1.0 –0.6 µA
15 CT = 330 pF, RT = 15 kΩ 180 200 220 kHz
3
12.474 12.60 12.726 V MB3813A
VT1
Error amplifier Threshold
VT1
(Error Amp.1) voltage
VT1
VT1
VT1
3 FB = 1.5 V, SEL = 0 V
3
3
3
FB = 1.5 V,
Ta = –30°C to +85°C
3
8.316
4.158
12.41
8.27
4.13
8.40
4.20
12.60
8.40
4.20
8.484
4.242
12.79
8.53
4.26
V MB3833A
V MB3843
V MB3813A
V MB3833A
V MB3843
(Continued)
7