FSCM0465R_06 データシートの表示（PDF） - Fairchild Semiconductor

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FSCM0465R_06

Green Mode Fairchild Power Switch (FPS™)

Fairchild Semiconductor 

Pin Configuration

FSCM0465RJ

D2-PAK-6L

6 : I_limit

5 : N.C.

4 : FB

3 : VCC

2 : GND

1 : Drain

FSCM0465RI

I2-PAK-6L

6 : I_limit

5 : N.C.

4 : FB

3 : VCC

2 : GND

1 : Drain

FSCM0465RG

TO-220-6L

6. I_limit

5. N.C.

4. FB

3. VCC

2. GND

1. Drain

Figure 3. Pin Configuration (Top View)

Pin Definitions

Pin Number Pin Name

1

Drain

2

GND

3

VCC

4

Feedback (FB)

5

N.C.

6

I_limit

Pin Function Description

SenseFET Drain. This pin is the high-voltage power SenseFET drain. It is

designed to drive the transformer directly.

Ground. This pin is the control ground and the SenseFET source.

Power Supply. This pin is the positive supply voltage input. During startup,

the power is supplied through the startup resistor from DC link. When VCC

reaches 12V, the power is supplied from the auxiliary transformer winding.

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

comparator. The collector of an opto-coupler 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 overload protection is activated, re-

sulting in shutdown of the FPS.

This pin is not connected.

Current Limit. This pin is for the pulse-by-pulse current limit level program-

ming. By using a resistor to GND on this pin, the current limit level can be

changed. If this pin is left floating, the typical current limit is 2.0A.

© 2006 Fairchild Semiconductor Corporation

FSCM0465R Rev. 1.0.1

4

www.fairchildsemi.com

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