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Fabricante

FAN7602C

Green Current Mode PWM Controller

Fairchild Semiconductor 

Pin Configuration

Figure 3. Pin Configuration (Top View)

Pin Definitions

Pin #

1

2

3

4

5

6

7

8

Name

LUVP

Latch/Plimit

CS/FB

GND

OUT

VCC

NC

VSTR

Description

Line Under-Voltage Protection Pin. This pin is used to protect the set when the input

voltage is lower than the rated input voltage range.

Latch Protection and Power Limit Pin. When the pin voltage exceeds 4V, the latch

protection works. The latch protection is reset when the VCC voltage is lower than 5V. For

the power limit function, the OCP level decreases as the pin voltage increases.

Current Sense and Feedback Pin. This pin is used to sense the MOSFET current for

the current mode PWM and OCP. The output voltage feedback information and the

current sense information are added using an external RC filter.

Ground Pin. This pin is used for the ground potential of all the pins. For proper operation,

the signal ground and the power ground should be separated.

Gate Drive Output Pin. This pin is an output pin to drive an external MOSFET. The peak

sourcing current is 450mA and the peak sinking current is 600mA. For proper operation,

the stray inductance in the gate driving path must be minimized.

Supply Voltage Pin. IC operating current and MOSFET driving current are supplied

using this pin.

No Connection.

Startup Pin. This pin is used to supply IC operating current during IC startup. After

startup, the internal JFET is turned off to reduce power loss.

© 2009 Fairchild Semiconductor Corporation

FAN7602C • Rev. 1.0.0

3

www.fairchildsemi.com

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