Block Diagrams - Sharp LC-37GD9E Service Manual

Philips Semiconductors
2.3. IC301, IC302 (VHITDA8931T-1Y)
2.3.1. Block Diagram
6. Block diagram
Semiconductors
nning information
2.3.2. Pinning
7.1 Pinning
9397 750 13847
Preliminary data sheet
Fig 2. Pin configuration
7.2 Pin description
Table 3:
5
V
DDA
4
INP
comparator
3
INN
2
V
SSA
6
POWERUP
7
ENABLE
9
CGND
ODP
OTP
OCP
12
OVP OVP
UVP
Fig 1. Block diagram
POWERUP
ENABLE
Rev. 01 — 14 January 2004
Pin description
TDA8931
CONTROL
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
V
SSD
V 2
SSA
INN 3
4
INP
V 5
DDA
TDA8931
6
7
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
DIAG 8
9
CGND
V 10
SSD
001aab811
79
TDA8931
Power comparator 1 × 20 W
17
BOOT
18
V
DDP
DRIVER
HIGH
16
OUT
DRIVER
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
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