Sharp LC-26P55EE Service Manual page 61

LC-26P55E
LC-26GA5E
LC-32P55E
LC-32GA5E
LC-37P55E
Philips Semiconductors
2.3. IC301, IC302 (VHITDA8931T-1Y)
2.3.1. Block Diagram
6. Block diagram
emiconductors
Fig 1. Block diagram
2.3.2. Pinning
7.1 Pinning
9397 750 13847
Preliminary data sheet
Fig 2. Pin configuration
7.2 Pin description
Table 3:
TDA8931
5
V
DDA
4
INP
comparator
3
INN
2
V
SSA
6
POWERUP
7
ENABLE
9
CGND
ODP
OTP
OCP
12
OVP OVP
UVP
V
V
V
POWERUP
ENABLE
Rev. 01 — 14 January 2004
DIAG
CGND
V
Pin description
Power comparator 1 × 20 W
DRIVER
HIGH
CONTROL
DRIVER
STABILIZER
12V
V
SSD
V
DDP
V
SSP
CONTROL
V
DDP
V
SSP
HEAT SPREADER
1 10 11 20
V V
SSD SSD
V V
SSD SSD
1
SSD
2
SSA
INN 3
4
INP
5
DDA
TDA8931
6
7
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
8
9
10
SSD
001aab811
62
TDA8931
17
BOOT
18
V
DDP
16
OUT
LOW
15
V
SSP
14
STABI
13
HVP
19
HVPI
TDA8931
8
DIAG
Power comparator 1 × 20 W
001aab807
20
V
SSD
19 HVPI
18 V
DDP
17
BOOT
16 OUT
15 V
SSP
14
STABI
3 of 31
13 HVP
12
OVP
11 V
SSD