NCP1650 ON, NCP1650 Datasheet - Page 6

• Manufacturer Part Number: NCP1650
• Description: Power Factor Controller
• Manufacturer: ON

AC INPUT
P
COMP
FB/SD
LOOP
COMP
GND
4.24 V
3.68 V
4 V
RAMP COMP
+
−
ERROR
AMP
+
−
+
−
200 mA
200 mA
OSCILLATOR
20 mA
REFERENCE
MULTIPLIER
MULTIPLIER
POWER
VOLTAGE/POWER
ORing NETWORK
C
T
Figure 1. Simplified Block Diagram
2.5 V
POWER
+
−
AMP
http://onsemi.com
NETWORK
CURRENT
SHAPING
NCP1650
6
0.85 V
1.08 V
+
−
ref
OVERVOLTAGE
COMPARATOR
SHUTDOWN
−
+
CONTROL
LOGIC
V
CC
REFERENCE
REGULATOR
AMPLIFIER
CURRENT
SENSE
UVLO
+
−
OUT
I
S−