FOD2741A_08 Datasheet, PDF (2/15 Pages) Fairchild Semiconductor – Optically Isolated Error Amplifier

Pin Definitions
Pin Number Pin Name
Pin Description
1
NC
Not connected
2
C
Phototransistor Collector
3
E
Phototransistor Emitter
4
NC
Not connected
5
GND
Ground
6
COMP
Error Amplifier Compensation. This pin is the output of the error amplifier.*
7
FB
Voltage Feedback. This pin is the inverting input to the error amplifier
8
LED
Anode LED. This pin is the input to the light emitting diode.
*The compensation network must be attached between pins 6 and 7.
Typical Application
FAN4803
V₁
PWM
Control
FOD2741
2
8
6
3
7
5
V_O
R1
R2
©2004 Fairchild Semiconductor Corporation
FOD2741A, FOD2741B, FOD2741C Rev. 1.0.1
2
www.fairchildsemi.com