FP7176

This datasheet contains new product information.

Feeling Technology reserves the rights to modify the product specification without notice.

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Rev. 0.64

2/14

Function Block Diagram

GND

LD

GATE

VIN

VDD

CS

Regulator

POR

UVLO

Internal

supply

Average Current

Logic Control

PWMD

RT

LEB

SCP

550mV

150mV/200mV

OTP

Pin Descriptions

SOP-8L

1

2

3

4

8

7

6

5

TOP View

VIN

CS

GND

GATE

RT

LD

VDD

PWMD

Name

No.

I / O

Description

VIN

1

This pin is the input of an 8 - 450V linear

regulator.

CS

2

I

This pin is the current sense pin used to

sense the FET current by means of an

external sense resistor.

GND

3

P

Ground return for all internal circuitry.

GATE

4

O

This pin is the output GATE driver for an

external N-channel power MOSFET.

PWMD

5

I

This is the PWM dimming input of the IC.

VDD

6

I

This is the power supply pin for all internal

circuits.

LD

7

I

This pin is the linear dimming input of the IC.

RT

8

I

A resistor connected between this pin and

GND programs the GATE off-time.