FAN302HLMY_F117 View Datasheet(PDF) - Fairchild Semiconductor

Part Name

Description

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FAN302HLMY_F117

PWM Controller for Low Standby Power Battery Charger Applications — mWSaver™ Technology

Fairchild Semiconductor 

Marking Information

F- Fairchild Logo

Z: Assembly Plant Code

X: Year Code

Y: Week Code

TT: Die Run Code

T: M=SOIC

P: Y= Green Package

M: Manufacture Flow Code

Figure 4.Top Mark

Pin Configuration

CS

GATE

VDD

VS

HV

NC

FB

GND

Figure 5. Pin Assignments

Pin Definitions

Pin #

1

2

3

4

5

6

7

8

Name

CS

GATE

VDD

VS

GND

FB

NC

HV

Description

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

Peak-Current-Mode control for output regulation. The current-sense information is also used to

estimate the output current for CC regulation.

PWM Signal Output. This pin has an internal totem-pole output driver to drive the power

MOSFET. It is internally clamped at 15V.

Power Supply. IC operating current and MOSFET driving current are supplied through this pin.

This pin is typically connected to an external VDD capacitor.

Voltage Sense. This pin detects the output voltage information and diode current discharge

time based on the voltage of the auxiliary winding.

Ground

Feedback. Typically, an opto-coupler is connected to this pin to provide feedback information to

the internal PWM comparator. This feedback is used to control the duty cycle in CV regulation.

No Connect

High Voltage. This pin connects to the DC bus for high-voltage startup.

© 2012 Fairchild Semiconductor Corporation

FAN302HLMY_F117 • Rev. 1.0.1

3

www.fairchildsemi.com

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