MB3875_03 Datasheet, PDF (6/26 Pages) Fujitsu Component Limited. – DC/DC Converter IC for Charging

MB3875/3877
s ELECTRICAL CHARACTERISTICS
Parameter
Symbol Pin No.
(MB3875: Ta = +25°C, VCC = 16 V, VCC (O) = 16 V, VREF = 0 mA)
(MB3877: Ta = +25°C, VCC = 19 V, VCC (O) = 19 V, VREF = 0 mA)
Conditions
Value
Unit Remarks
Min Typ Max
Output voltage VREF
Ta = +25°C
4.167 4.200 4.233 V
5
Ta = –30°C to +85°C 4.158 4.200 4.242 V
Input stability
Line
5 VCC = 7 V to 25 V
—
3
10 mV
Load stability
Load
5 VREF = 0 mA to –1 mA —
1
10 mV
Short-circuit
output current
IOS
5 VREF = 1 V
–25 –15
–5 mA
Threshold
voltage
VTLH
VTHL
VCC =VCC (O),
VCC =
18
VCC =VCC (O),
VCC =
6.3
6.6
6.9 V
5.3
5.6
5.9 V
Hysteresis width VH
18 VCC =VCC (O)
0.7
1.0
1.3 V
Threshold
voltage
VTLH
VTHL
VREF =
5
VREF=
2.6
2.8
3.0 V
2.4
2.6
2.8 V
Hysteresis width VH
5
—
0.05 0.20 0.35 V
Charge current ICS
22
—
–1.3 –0.8 –0.5 µA
Oscillation
frequency
fOSC
20 RT = 47 kΩ
260 290 320 kHz
Frequency tem-
perature stability
∆f/fdT
20 Ta = –30°C to +85°C
—
1*
—%
*: Standard design value.
(Continued)
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