© 2009 Fairchild Semiconductor Corporation

www.fairchildsemi.com

FAN6755 • Rev. 1.0.1

3

Marking Information

Figure 3. Top Mark

Pin Configuration

Figure 4.

Pin Configuration (Top View)

Pin Definitions

Pin #

Name

Description

1

VIN

Line-voltage detection. The line-voltage detection is used for brownout protection with

hysteresis. Constant output power limit over universal AC input range is also achieved using this

VIN pin. It is suggested to add a low-pass filter to filter out line ripple on the bulk capacitor.

Pulling VIN HIGH also triggers auto-restart protection.

2

FB

The signal from the external compensation circuit is fed into this pin. The PWM duty cycle is

determined in response to the signal on this pin and the current-sense signal on the SENSE pin.

3

SENSE

Current sense. The sensed voltage is used for peak-current-mode control and cycle-by-cycle

current limiting.

4

GND

Ground

5

GATE

The totem-pole output driver. Soft-driving waveform is implemented for improved EMI.

6

VDD

OVP trigger point.

7

HV

For startup, this pin is pulled HIGH to the line input or bulk capacitor via resistors.

Z: Plant Code

X: 1-Digit Year Code

Y: 1-Digit Week Code

TT: 2-Digit Die Run Code

T: Package Type (M:SOP)

P: Y=Green Package

M: Manufacture Flow Code

SOP-7

VIN

VDD

GATE

HV

GND

SENSE

FB

17

6

5

4

2

3

ZXYTT

6755

TPM

7

1