Philips 32PFS5709/12 Service Manual page 80

EN 80 8. TPM14.2E LA
8.6 Diagram 10-16-1 System Power 1
Block diagram
Pinning information
2014-Sep-26
IC Data Sheets
B01, G5312QN1U (IC U103)
G5312
KV+ KV+
TON TON
On-Time On-Time
OUT OUT
Off-Time Off-Time
DISCHG DISCHG
OT OT
OVP OVP
UVP UVP
FB FB
0.75V 0.75V
VCC VCC
Reference Reference
POR POR
EN EN
AGND AGND
ILIM ILIM
1 1
AGND AGND
2 2
AGND AGND
V5V V5V
3 3
PGND PGND
4 4
LX LX
5 5
LX LX
6 6
LX LX
7 7
LX LX
8 8
Figure 8-8 Internal block diagram and pin configuration
V+ V+
DH DH
V5V V5V
PWM PWM
controller controller
DL DL
OCP OCP
ILIM ILIM
20 20
19 19
V+ V+
18 18
17 17
LX LX
G5312QN2U
back to
div. table
5V 5V
V5V V5V
LDO LDO
PGOOD PGOOD
BST BST
V+ V+
Q1 Q1
LX LX
Q2 Q2
PGND PGND
V+ V+
V+ V+
V+ V+
V+ V+
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