Sony MDR-NC500D Servise Manual page 27

CHARGER BOARD IC402 BQ24070HLRG4 (POWER/CHARGE CONTROL)
Pin No. Pin Name
1 VREF
2 STAT1
3 STAT2
4 IN
5, 6 BATT
7 ISET2
8 MODE
9 CE
10 ISET1
11 VSS
12 TS
13 DPPM
14 TMR
15 to 17 OUT
18 PG
19, 20 GND
I/O
O Reference voltage output terminal
O LED drive signal output terminal for charge on indicator
O Charge status output terminal
I Power supply voltage input for charge from the DC/DC converter
Power supply voltage input from the rechargeable battery and power supply voltage for
I/O
charge to the rechargeable battery
Input terminal for charge current setting
I
"L": 100 mA, "H": 500 mA
Input terminal for power supply selection
I
"L": USB power supply, "H": AC power supply
I Chip enable signal input terminal
I Input terminal for charge current, precharge and charge termination setting
- Ground terminal
I Temperature detection signal input terminal
I Input terminal for dynamic power path management setting
I Timer program input terminal
O Power supply voltage output terminal
O Power good status output terminal
- Ground terminal
Description
"L": LED on
Not used
Fixed at "H" in this set at charge
Fixed at "H" in this set at charge
"H": charge on
Not used
Not used
MDR-NC500D
27