MAX1898 データシートの表示（PDF） - Maxim Integrated
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MAX1898 Datasheet PDF : 12 Pages
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Linear Charger for Single-Cell Li+ Battery
DC IN
LED
CHG
0.1µF
5mA
CHARGING FOR
3hr,
CT
OSC
÷218
CCT = 100nF
ISET
RSET
(2.8kΩ FOR
500mA CHARGE
CURRENT)
TIMEOUT
CHG
LOGIC
280mV ISET (FALLING)
305mV ISET (RISING)
IN
4.5V TO 12V
84Ω
84mΩ
CSA
ICHARGE < 20%
20mΩ
470Ω
HV
DRV
CS
0.1µF
DRV
REF
1.4V
CONTROL
LOGIC
EN/OK
DONE
3V
VL REG
100kΩ
UVLO
SHUTDOWN
BATT
IN
SHUTDOWN
CA
PREQUAL
2.5V
VA
1.4V
1.4V
RESTART
69.275kΩ
34.637kΩ
BATT
10µF
DONE
2.653kΩ
SHUTDOWN
GND
RSTRT
Figure 1. Functional Diagram
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