Sony PRS-505 Service Manual page 38

PRS-505
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3 7 63 1515 0
MAIN BOARD IC401 SN412005RHLR (CHARGE CONTROL)
Pin No. Pin Name
1 LDO
2 STAT1
3 STAT2
4 AC
5, 6 BAT
7 ISET2
8 PSEL
9 CE
10 ISET1
11 VSS
12 TS
13 DPPM
14 TMR
15 to 17 OUT
18 XACPG
19 XUSBPG
20 USB
21 GND
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I/O
O Power supply (+3.3V) output terminal
O Charge state signal output to the sub CPU and LED drive signal for CHARGE indicator
O Charge state signal output to the sub CPU
I Power supply input from the AC adaptor
Power supply voltage input from the rechargeable battery or charge voltage output to the
I/O
rechargeable battery
Charge current setting siganal input from the sub CPU
I
Fixed at "H" charging voltage in this set
Charge source selection siganal input terminal
I
Fixed at "H" charging voltage in this set
I Chip enable signal input terminal
O Setting terminal for AC input charge current and AC precharge/termination
- Ground terminal
I Thermal detection signal input terminal
I Setting terminal for the dinamic power pass management
Timer program input terminal (Becomes impossible to do safety timer and charge
I
termination when connecting LOD (pin 1))
O Power supply voltage output terminal
External DC power state detection signal output to the sub CPU
O
"L": external DC power on
O USB power state detection signal output terminal
I Charge voltage input terminal from the USB connector
- Ground terminal
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2 9
8
Description
"L": 100 mA, "H": 500 mA
"L": USB (pin 20), "H": AC (pin 4)
Not used
Not used
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9 4 2 8
0 5 8 2 9 9 4 2 8
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