CM0565R View Datasheet(PDF) - Fairchild Semiconductor

Part Name

Description

View to exact match

CM0565R

Green Mode Fairchild Power Switch (FPS™)

Fairchild Semiconductor 

Pin Definitions

FSCM0565R

Pin Number

1

2

3

4

5

6

Pin Name

Pin Function Description

Drain

This pin is the high voltage power SenseFET drain. It is designed to drive the

transformer directly.

GND

This pin is the control ground and the SenseFET source.

This pin is the positive supply voltage input. Initially, During start up, the power is

VCC

supplied through the startup resistor from DC link. When Vcc reaches 12V, the

power is supplied from the auxiliary transformer winding.

Feedback (FB)

This pin is internally connected to the inverting input of the PWM comparator.

The collector of an optocoupler is typically tied to this pin. For stable operation, a

capacitor should be placed between this pin and GND. If the voltage of this pin

reaches 6.0V, the over load protection is activated resulting in shutdown of the

FPS.

N.C.

This pin is not connected.

This pin is for the pulse by pulse current limit level programming. By using a

Ilimit

resistor to GND on this pin, the current limit level can be changed. If this pin is

left floating, the typical current limit will be 2.5A.

Pin Configuration

FSCM0565RJ

D2-PAK-6L

FSCM0565RI

I2-PAK-6L

6 : I_limit

5 : N.C.

4 : FB

3 : Vcc

2 : GND

1 : Drain

6 : I_limit

5 : N.C.

4 : FB

3 : Vcc

2 : GND

1 : Drain

FSCM0565RG

TO-220-6L

6. I_limit

5. N.C.

4. FB

3. Vcc

2. GND

1. Drain

Figure 3. Pin Configuration (Top View)

3

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