Sharp GX20 Service Manual - Page 149

IC402 IX3053AF: POWER MANAGEMENT, Pin No., Terminal name, Input/Output, Description of terminal

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IC402 (IX3053AF): POWER MANAGEMENT Pin No. 1 2 3 4 5* 6* 7 8 9 10 11 12 13* 14* 15* 16* 17 18 19 20* 21 22 23* 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 Terminal name T1 LEDG GND1 VBAT1 LSO11 LSO12 WVOUT T2 TEST LEDR LEDB TRSW LSO21 LSO22 CAPP1 CAPN1 SENSP SENSN CPIN CAPP2 VIO VPLUS2 CAPN2 GND3 STRB CLK VPLUS12 CAMP DATA FRP IREF VREF LEDCTL CUR2 CUR1 FLED GND2 SBD VNEG CAMN T4 RSTB BLED SW1 GND VBAT2 VPLUS11 T3 Input/Output - Output - - Output Output Output - Input Output Output Output Output Output Output Output Input Input Input Output - Input Output - Input Input Input Output Input Input Output Output Input Output Output Output - Input Input Output - Input Output Output Output - Input - CONFIDENTIAL Description of terminal Dummy terminal (connected with T2 internally.) G LED drive output terminal (Constant current drive) Ground power supply terminal VBAT power supply terminal Level shift output 1 Level shift output 1 Triple pressure rise charge pump output Dummy terminal (connected with T1 internally.) Test terminal (Internal pull down processing with IC) R LED drive output terminal (Constant current drive) B LED drive output terminal (Constant current drive) DC-DC switching Tr drive terminal for R/G/B LED Level shift output 2 Level shift output 2 Triple pressure rise charge pump C1 connection output Triple pressure rise charge pump C1 connection output DC-DC switching current sense terminal for R/G/B LED DC-DC switching current sense terminal for R/G/B LED Triple pressure rise charge pump input terminal Triple pressure rise charge pump C2 connection terminal Logic system power supply terminal DC-DC pressure rise voltage feedback input for R/G/B LED Triple pressure rise charge pump C2 connection terminal Ground power supply terminal 3-wire serial strobe input 3-wire serial clock input DC-DC pressure rise voltage feedback input for back light LED (main/external) +13V voltage output terminal for cameras 3-wire serial data input Level shift circuit and square wave input terminal Resistance connection terminal for current reference Voltage reference terminal C is connected On/Off control terminal for R/G/B LED Constant current drive output 2 Constant current drive output 1 White backlight LED drive terminal (main) Ground power supply terminal SBD input terminal Negative power supply terminal for cameras -7V voltage output terminal for cameras Dummy terminal (connected with T3 internally.) Reset input (when Low is input) White backlight LED drive terminal (external) DC-DC coil switching terminal for backlight (main/external) Ground power supply terminal VBAT power supply terminal DC-DC pressure rise voltage feedback input for backlight (main/external) Dummy terminal (connected with T4 internally.) In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside. GX20 6 - 17

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GX20
6 – 17
CONFIDENTIAL
IC402 (IX3053AF): POWER MANAGEMENT
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Pin No.
Terminal name
Input/Output
Description of terminal
1
T1
–
Dummy terminal (connected with T2 internally.)
2
LEDG
Output
G LED drive output terminal (Constant current drive)
3
GND1
–
Ground power supply terminal
4
VBAT1
–
VBAT power supply terminal
5*
LSO11
Output
Level shift output 1
6*
LSO12
Output
Level shift output 1
7
WVOUT
Output
Triple pressure rise charge pump output
8
T2
–
Dummy terminal (connected with T1 internally.)
9
TEST
Input
Test terminal (Internal pull down processing with IC)
10
LEDR
Output
R LED drive output terminal (Constant current drive)
11
LEDB
Output
B LED drive output terminal (Constant current drive)
12
TRSW
Output
DC-DC switching Tr drive terminal for R/G/B LED
13*
LSO21
Output
Level shift output 2
14*
LSO22
Output
Level shift output 2
15*
CAPP1
Output
Triple pressure rise charge pump C1 connection output
16*
CAPN1
Output
Triple pressure rise charge pump C1 connection output
17
SENSP
Input
DC-DC switching current sense terminal for R/G/B LED
18
SENSN
Input
DC-DC switching current sense terminal for R/G/B LED
19
CPIN
Input
Triple pressure rise charge pump input terminal
20*
CAPP2
Output
Triple pressure rise charge pump C2 connection terminal
21
VIO
–
Logic system power supply terminal
22
VPLUS2
Input
DC-DC pressure rise voltage feedback input for R/G/B LED
23*
CAPN2
Output
Triple pressure rise charge pump C2 connection terminal
24
GND3
–
Ground power supply terminal
25
STRB
Input
3-wire serial strobe input
26
CLK
Input
3-wire serial clock input
27
VPLUS12
Input
DC-DC pressure rise voltage feedback input for back light LED (main/external)
28
CAMP
Output
+13V voltage output terminal for cameras
29
DATA
Input
3-wire serial data input
30
FRP
Input
Level shift circuit and square wave input terminal
31
IREF
Output
Resistance connection terminal for current reference
32
VREF
Output
Voltage reference terminal C is connected
33
LEDCTL
Input
On/Off control terminal for R/G/B LED
34
CUR2
Output
Constant current drive output 2
35
CUR1
Output
Constant current drive output 1
36
FLED
Output
White backlight LED drive terminal (main)
37
GND2
–
Ground power supply terminal
38
SBD
Input
SBD input terminal
39
VNEG
Input
Negative power supply terminal for cameras
40
CAMN
Output
–7V voltage output terminal for cameras
41
T4
–
Dummy terminal (connected with T3 internally.)
42
RSTB
Input
Reset input (when Low is input)
43
BLED
Output
White backlight LED drive terminal (external)
44
SW1
Output
DC-DC coil switching terminal for backlight (main/external)
45
GND
Output
Ground power supply terminal
46
VBAT2
–
VBAT power supply terminal
47
VPLUS11
Input
DC-DC pressure rise voltage feedback input for backlight (main/external)
48
T3
–
Dummy terminal (connected with T4 internally.)