IR2166
Lead Assignments & Definitions
VBUS
HO
Pin # Symbol
Description
1
2
3
4
5
67
7
8
16
VBUS
CPH
RT
DC Bus Sensing Input
1
2
CPH
VS
Preheat Timing Capacitor
15
14
13
12
3
Minimum Frequency Timing Resistor
Preheat Frequency Timing Resistor
Oscillator Timing Capacitor
VB
RT
4
RPH
CT
5
RPH
VCC
COM
6
PFC Error Amplifier Compensation
COMP
ZX
7
PFC Zero-Crossing Detection
PFC Gate Driver Output
CT
COMP
ZX
8
PFC
SD/EOL
CS
9
Shut-Down/End of Life Sensing Circuit
Current Sensing Input
10
11
12
13
14
15
16
LO
11
10
9
LO
Low-Side Gate Driver Output
IC Power & Signal Ground
COM
VCC
VB
CS
Logic & Low-Side Gate Driver Supply
High-Side Gate Driver Floating Supply
High Voltage Floating Return
High-Side Gate Driver Output
PFC
SD/EOL
VS
HO
8
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