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FL7701

• Rev. 1.0.4

3

Pin Configuration

CS

OUT

VCC

RT

HV

NV

GND

ADIM

Figure 3. Pin Configuration

Pin Definitions

Pin #

Name

Description

1

CS

Current Sense. Limits output current depending on the sensing resistor voltage. The CS pin is

also used to set the LED current regulation

2

OUT

OUT. Connects to the MOSFET gate.

3

VCC

VCC. Supply pin for stable IC operation ZCD signal detection used for accurate PFC function.

4

RT

RT. Programmable operating frequency using external resistor and the IC has pre-fixed

frequency when this pin is open or floating.

5

ADIM

Analog Dimming. Connect to the internal current source and can change the output current

using an external resistor. If ADIM is not used, it is recommended to connect a 0.1 µF bypass

capacitor between the ADIM and GND.

6

GND

GROUND. Ground for the IC.

7

NC

No Connection

8

HV

High Voltage. Connect to the high voltage line and supply current to the IC