Read Sony PHA-1A / PHA-1AEU Service Manual online
PHA-1A/1AEU
21
MAIN BOARD IC701 BQ24073RGTR (BATTERY CHARGER, POWER CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
TS
I
External NTC thermistor input terminal Not used
2, 3
BAT
I/O
Battery power input and charge power output terminal
4
CE
I
Chip enable signal input terminal Not used
5, 6
EN2, EN1
I
Current control signal input terminal
7
PGOOD
O
Power supply state detection signal output to the charge controller
“L”: power supply is good, “H”: power supply is failure
“L”: power supply is good, “H”: power supply is failure
8
VSS
-
Ground terminal
9
CHG
O
Charge detection signal output to the charge controller “L”: charging, “H”: non-charging
10, 11
OUT
O
System power supply output terminal (+3.7V)
12
ILIM
I
Adjustable current limit programming input terminal
13
IN
I
DC power supply input terminal (+5V)
14
TMR
I
Timer programming input terminal Not used
15
TD
I
Termination disable signal input terminal Not used
16
ISET
I
Quick charge current programming input terminal Not used
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