Philips 19HFL3233D/10 Service Manual page 35

8.4 Diagram Power-1
Block diagram
G5173R41D
FB
SS
COMP
OverLoad
Recovery
Pinning information
B01, G5173R41D (IC U701)
PG
SHDN
93%
Logic
107%
Voltage
Reference
Minimum
Clamp
Erramp
SHDN
Logic
Maximum
Clamp
AGND
1 1
VINA VINA
2 2
VIN VIN
3 3
GND GND
4 4
GND GND
Figure 8-5 Internal block diagram and pin configuration
IC Data Sheets
EN
Thermal
Shutdown
Enable
Comparator
Shutdown
SHDN
Enable
Threshold
Logic and PWM Latch
PWM
Slope
Compensation
Frequency
Shift
Oscillator
RT
Thermal Thermal
Pad Pad
TPM8.2E LA
VINA
UVLO
Boot
Charge
Logic
Current
Boot
Sense
UVLO
Buffer
Buffer
12 12 LX LX
LX LX
11 11
LX LX
10 10
9 9 SS SS
8. EN 35
VIN
BS
LX
GND
19120_303_110517.eps
110524
2011-Jun-01