MB39A114 Datasheet, PDF (8/54 Pages) Fuji Electric – DC/DC Converter IC for Charging Li-ion Battery

MB39A114
s ELECTRICAL CHARACTERISTICS
Parameter
Symbol Pin No.
(VCC = 19 V, VREF = 0 mA, Ta = +25 °C)
Conditions
Value
Unit
Min Typ Max
Reference
voltage block
[REF]
Output voltage
Input stability
Load stability
VREF1
VREF2
Line
Load
6 Ta = +25 °C
4.975 5.000 5.025 V
6 Ta = −10 °C to +85 °C 4.963 5.000 5.037 V
6 VCC = 8 V to 25 V

3
10 mV
6 VREF = 0 mA to −1 mA 
1
10 mV
Output current at
short circuit
Ios
6 VREF = 1 V
−50 −25 −12 mA
Under voltage _Threshold
VTLH
lockout
voltage
VTHL
protection
circuit block
[UVLO]
Hysteresis width VH
6 VREF =
6 VREF =
6

2.6 2.8
3.0
V
2.4 2.6
2.8
V
 0.2*

V
Soft start block
[SOFT]
Charge current
ICS
22

−14 −10
−6 µA
Oscillation
Triangular wave ^frequency
oscillator block _Frequency
[OSC]
temperature
stability
fosc
20 RT = 47 kΩ
270 300 330 kHz
∆f/fdt
20 Ta = −30 °C to +85 °C 
1*

%
Input offset
voltage
VIO 3, 4, 8, 9 FB12 = 2 V

1
5 mV
Input bias
current
IB 3, 4, 8, 9

−100 −30
 nA
In-phase input
voltage range
VCM 3, 4, 8, 9

0
 VCC − 1.8 V
Error amplifier _{Voltage gain}
AV
block
[Error Amp1,
Error Amp2]
Frequency
bandwidth
BW
Output voltage
VFBH
VFBL
7 DC
7 AV = 0 dB
7

7

 100*
 1.3*
4.8 5.0

0.8
 dB
 MHz

V
0.9 V
Output source
current
ISOURCE
7 FB12 = 2 V
 −120 −60 µA
Output sink
current
ISINK
7 FB12 = 2 V
2.0 4.0
 mA
* : Standard design value
(Continued)
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