Philips 43HFL5011T/12 Service Manual page 35

8.2 Diagram 10-4-1 System Power
Block diagram
RT7299BHGQW
109% V
SS/TR
FB
Pinning information
1, B01, RT7299BHGQW (IC U704)
PGOOD
UV
Comparator
91% V
REF
PGOOD
Logic
REF
OV
Comparator
Compensation
I
SS
+
V
+
REF
-
Voltage
Reference
GND
2
GND
3
PVIN
4
PVIN
5
VIN
6
Figure 8-3 Internal block diagram and pin configuration
IC Data Sheets
EN
Thermal
I
I
hys
P
Detector
V = 1.21V
EN
Slope High-Side
Current Sense
Current
Comparator
Oscillator with
RT/SYNC
Current Sense
Function
COMP RT/SYNC
1 14
13
12
GND
11
10
15
9
7 8
back to
div.table
TPM16.1HE LA
VIN PVIN
UVLO
Regulator
Shutdown
Logic
Shutdown
Power Stage
Control
Logic,
Driver, and
Boot UVLO
Low-Side
BOOT
LX
LX
EN
SS/TR
8. EN 35
BOOT
LX
GND
19880_302.eps
2016-May-13