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Part Name
Description
IR1150 View Datasheet(PDF) - International Rectifier
Part Name
Description
Manufacturer
IR1150
µPFC ONE CYCLE CONTROL PFC IC
International Rectifier
IR1150 Datasheet PDF : 16 Pages
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IR1150S/IR1150IS(PbF)
Block Diagram
OVP/EN 4
1.055V
REF
I
SNS
3
V
m
V
REF
V
FB
6
COMP 5
FAULT
1.0V
-
+
RESET
FAULT PROTECTION
OPEN LOOP PROTECTION
OUTPUT UNDER VOLTAGE
FAULT
Lead Assignments & Definitions
BIAS &
REFERENCES
UVLO
SLEEP
0.5V
CLOCK
MAX
DUTY CYCLE
LIMIT
SQ
RQ
FAULT
7
V
CC
2 FREQ
8 GATE
1 COM
Lead Assignment
IR1150S
COM 1
8
FREQ 2
7
I
SNS
3
6
OVP/EN 4
5
8 LEAD SOIC
GATE
V
CC
V
FB
COMP
Pin#
1
2
3
4
5
6
7
8
Symbol
Description
COM
FREQ
Ground
Frequency Set
I
SNS
OVP/EN
Current Sense
Overvoltage Fault Detect / Enable
COMP Voltage Loop Compensation
V
FB
V
CC
GATE
Output Voltage Sense
IC Supply Voltage
Gate Drive Output
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