Sony PRS-505/SC Service Manual - Page 38

Main Board, Ic401, Sn412005rhlr, Charge Control - charge usb

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PRS-505 MAIN BOARD IC401 SN412005RHLR (CHARGE CONTROL) Pin No. Pin Name I/O Description 1 LDO O Power supply (+3.3V) output terminal 2 STAT1 O Charge state signal output to the sub CPU and LED drive signal for CHARGE indicator 3 STAT2 O Charge state signal output to the sub CPU 4 AC I Power supply input from the AC adaptor 5, 6 BAT I/O Power supply voltage input from the rechargeable battery or charge voltage output to the rechargeable battery 7 ISET2 I Charge current setting siganal input from the sub CPU "L": 100 mA, "H": 500 mA Fixed at "H" charging voltage in this set 8 PSEL I Charge source selection siganal input terminal "L": USB (pin 20), "H": AC (pin 4) Fixed at "H" charging voltage in this set 9 CE I Chip enable signal input terminal Not used 10 ISET1 O Setting terminal for AC input charge current and AC precharge/termination 11 VSS - Ground terminal 12 TS I Thermal detection signal input terminal 13 DPPM I Setting terminal for the dinamic power pass management 14 TMR I Timer program input terminal (Becomes impossible to do safety timer and charge termination when connecting LOD (pin 1)) 15 to 17 OUT O Power supply voltage output terminal 18 XACPG O External DC power state detection signal output to the sub CPU "L": external DC power on 19 XUSBPG O USB power state detection signal output terminal Not used 20 USB I Charge voltage input terminal from the USB connector 21 GND - Ground terminal 38

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PRS-505
38
MAIN BOARD
IC401
SN412005RHLR
(CHARGE CONTROL)
Pin No.
Pin Name
I/O
Description
1
LDO
O
Power supply (+3.3V) output terminal
2
STAT1
O
Charge state signal output to the sub CPU and LED drive signal for CHARGE indicator
3
STAT2
O
Charge state signal output to the sub CPU
4
AC
I
Power supply input from the AC adaptor
5, 6
BAT
I/O
Power supply voltage input from the rechargeable battery or charge voltage output to the
rechargeable battery
7
ISET2
I
Charge current setting siganal input from the sub CPU
"L": 100 mA, "H": 500 mA
Fixed at "H" charging voltage in this set
8
PSEL
I
Charge source selection siganal input terminal
"L": USB (pin 20), "H": AC (pin 4)
Fixed at "H" charging voltage in this set
9
CE
I
Chip enable signal input terminal
Not used
10
ISET1
O
Setting terminal for AC input charge current and AC precharge/termination
11
VSS
-
Ground terminal
12
TS
I
Thermal detection signal input terminal
13
DPPM
I
Setting terminal for the dinamic power pass management
14
TMR
I
Timer program input terminal (Becomes impossible to do safety timer and charge
termination when connecting LOD (pin 1))
15 to 17
OUT
O
Power supply voltage output terminal
18
XACPG
O
External DC power state detection signal output to the sub CPU
"L": external DC power on
19
XUSBPG
O
USB power state detection signal output terminal
Not used
20
USB
I
Charge voltage input terminal from the USB connector
21
GND
-
Ground terminal