ml4812 Fairchild Semiconductor, ml4812 Datasheet - Page 8

• Manufacturer Part Number: ml4812
• Description: Power Factor Correction Pfc Controller
• Manufacturer: Fairchild Semiconductor

ML4812
Typical Applications
Input Inductor (L1) Selection
8
Figure 8. Under-Voltage Lockout Block Diagram
V REF
GEN.
–
+
ENABLE
V REF
9V
INTERNAL
BIAS
5V V REF
V CC
Figure 9a. Total Supply Current vs. Supply Voltage
Figure 9b. Supply Current (I
25
20
15
10
-12
-16
-20
-24
Figure 10. Reference Load Regulation
25
20
15
10
5
0
-4
-8
5
0
0
–60
0
0
–40
STARTUP
20
–20
10
TEMPERATURE (degrees)
0
40
20
I REF (mA)
V CC (V)
OPERATING CURRENT
20
40
60
CC
PRODUCT SPECIFICATION
60
) vs. Temperature
80
80
REV. 1.0.4 5/31/01
30
100
100
120
140
40
120