MAX1679 データシートの表示（PDF） - Maxim Integrated
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MAX1679 Datasheet PDF : 12 Pages
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Single-Cell Li+ Battery Charger
for Current-Limited Supply
CURRENT-LIMITED
VOLTAGE SOURCE
*
PFET
(800mA)
REVERSE-CURRENT
PROTECTION DIODE
IN
GATE
MAX1679
TRICKLE
CHARGE
(5mA)
5mA
TSEL
SEE TABLE 3
FOR TIMEOUT
OPTIONS
STATE
MACHINE 1.4V
TIMER
10kΩ
BATT REMOVED
30kHz
OSCILLATOR
HOT
QUAL
TEST
CURRENT
COLD
QUAL
TEST
CURRENT
1.4V
THERM
NTC THERMISTOR*
*OPTIONAL
**RADJ = 410kΩ ±1% FOR 4.1V CELL; LEAVE OPEN FOR 4.2V CELL.
CHG
BATT
1:3
ADJ 2.2µF
RADJ**
1nF
SINGLE
Li+
CELL
5V
Figure 1. Functional Diagram
6 _______________________________________________________________________________________
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