Datasheet

FPDB50PH60 PFC SPM® 3 Series for 2-Phase Bridgeless PFC
©2005 Fairchild Semiconductor Corporation 3 www.fairchildsemi.com
FPDB50PH60 Rev. C3
Pin Descriptions
Internal Equivalent Circuit
Figure 3. Internal Block Diagram
Notes:
1. Converter is composed of two IGBTs including four diodes and one IC which has gate driving and protection functions.
Pin Number Pin Name Pin Description
1V
CC
Common Bias Voltage for IC and IGBTs Driving
2 COM Common Supply Ground
4IN
(R)
Signal Input for Low-Side R-Phase IGBT
5IN
(S)
Signal Input for Low-Side S-Phase IGBT
6V
FO
Fault Output
7C
FOD
Capacitor for Fault Output Duration Selection
8C
SC
Capacitor(Low-Pass Filter) for Over-Current Detection
19 R
(TH)
Series Resistor for The Use of Thermistor
20 V
(TH)
Thermistor Bias Voltage
21 V
AC-
Current Sensing Terminal
22 N
SENSE
Current Sensing Reference Terminal
24 N Negative Rail of DC-Link
25 R Output for R-Phase
26 S Output for S-Phase
27 P
R
Positive Rail of DC-Link
3, 9~18, 23 NC No Connection
CSC
CFOD
VFO
IN(S)
IN(R)
COM
VCC
OUT(S)
OUT(R)
(20) V
TH
(19) R
TH
(8) C
SC
(7) C
FOD
(6) V
FO
(5) IN
(S)
(4) IN
(R)
(2) COM
(1) VCC
(27) P
R
(26) S
(25) R
(23) NC
(22) N
SENSE
(21) V
AC-
Shunt
Resistor
NTC
Thermistor
Q1 Q2
D1
D3
D2
D4
(24) N