© 2008 Fairchild Semiconductor Corporation

www.fairchildsemi.com

FAN102 Rev. 1.0.3

3

Marking Information

Figure 4.

Top Mark

Pin Configuration

Figure 5.

Pin Configuration

Pin Definitions

Pin #

Name

Description

1

CS

Current Sense

. This pin connects a current-sense resistor to sense the MOSFET current for

peak-current-mode control in CV mode and provides for output-current regulation in CC mode.

2

COMR

Cable Compensation

. This pin is connects a capacitor between COMR and GND for

compensation voltage drop due to output cable loss in CV mode.

3

COMI

Constant Current Loop Compensation

. This pin is connects a capacitor and a resistor

between COMI and GND for compensation current loop gain.

4

COMV

Constant Voltage Loop Compensation

. This pin is connects a capacitor and a resistor

between COMV and GND for compensation voltage loop gain.

5

VS

Voltage Sense

. This pin detects the output voltage information and discharges time base on

voltage of auxiliary winding. This pin connects two divider resistors and one capacitor.

6

GND

Ground

.

7

VDD

Power Supply

. IC operating current and MOSFET driving current are supplied using this pin.

startup and turn-off are 16V and 5V, respectively.

8

GATE

PWM Signal Output

. This pin outputs PWM signal and includes the internal totem-pole output

driver to drive the external power MOSFET. The clamped gate output voltage is 18V.

F

- Fairchild Logo

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- Z: Pb Free, Y: Green Package

M- Manufacture Flow Code