MM1475 데이터 시트보기 (PDF) - Mitsumi
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MM1475 Datasheet PDF : 11 Pages
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MITSUMI
Lithium Ion Battery Charging Control (microcomputer-controlled type) (one cell) MM1475
Lithium Ion Battery Charging Control (microcomputer-controlled type) (one cell)
Monolithic IC MM1475
Outline
This IC is a lithium ion battery charging control IC. It is a 1-chip charging IC that combines constant current,
constant voltage charging and protection circuits such as pre-charge and pre-charge timer battery
temperature detection, all in one. The quick charge timer and full charge detection function have been
eliminated, as compared to MM1433, and charging ON/OFF is controlled externally.
Features
1. Output voltage (Ta = 0°C ~ +50°C)
4.120 ± 30mV
2. Consumption current
3.5mA typ.
3. Pre-charge function
4. Adaptor (primary side) abnormality detection function
5. Timer error time
±10% (not including external deviation)
6. Battery temperature detection function
7. Pre-charge timer
Package
TSOP-24A
Applications
1. Lithium ion battery charging control (with timer)
Pin Assignment
1
2
3
24 23 22 21 20 19 18 17 16 15 14 13
4
5
6
1 2 3 4 5 6 7 8 9 10 11 12
7
8
TSOP-24A
9
10
11
12
SW1
SW2
TP1
N.C
VREF
GND1
GND2
N.C
ADJ1
CDO
TOUT
TDET
13
BAT
14
CS -
15
CS+
16
CFB
17
CNT
18
VCC
19
VOUT2
20
VOUT1
21
VDET-TD
22
N.C
23
OSC OUT
24
OSC FB-
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