Philips 20PHH4109/88 Service Manual page 57

8.4 Diagram 10-4-1 Power-1, B01, RT8079ZQW (IC U701)
Block diagram
EN
RT/SYNC
SS/TR
FB
Pinning information
RT8079ZQW
Internal pull up
Over Temperature
current
Enable Comparator
EN Threshold
Oscillator
Slope
Compensation
Soft-Start
V
REF
PGOOD Threshold
PGOOD Comparator
VIN
1
VIN
2
GND
3
GND
4
Figure 8-10 Internal block diagram and pin configuration
IC Data Sheets
Protection
Shutdown
Current
Control
Sense
Control
Logic
PWM
Comparator
Error
Amplifier
PGOOD COMP
16 15 14 13
12
11
GND
10
17
9
5 6 7 8
back to
div. table
TPN14.1E LA 8.
VIN
UVLO
BOOT
Driver
SW
GND
AGND GND
SW
SW
SW
SS/TR
19530_309_130724.eps
EN 57
130724
2014-Feb-21