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 

June 2012

FAN302HLMY_F117

PWM Controller for Low Standby Power Battery-

Charger Applications — mWSaver™ Technology

Features

 mWSaver™ Technology Provides Industry’s

Best-in-Class Standby Power

- Achieves <10mW Below Energy Star’s 5-Star

Level: <30mW

- Proprietary 500V High-Voltage JFET Startup

Reduces Startup Resistor Loss

- Low Operation Current in Burst Mode:

350µA Maximum

 Constant-Current (CC) Control without Secondary-

Feedback Circuitry

 Fixed PWM Frequency at 85kHz with Frequency

Hopping to Reduce EMI

 High-Voltage Startup

 Low Operating Current: 3.5mA

 Peak-Current-Mode Control with Slope

Compensation

 Cycle-by-Cycle Current Limiting

 VDD Over-Voltage Protection (Auto-Restart)

 VS Over-Voltage Protection (Latch Mode)

 VDD Under-Voltage Lockout (UVLO)

 Gate Output Maximum Voltage Clamped at 15V

 Fixed Over-Temperature Protection (Latch Mode)

 Available in an 8-Lead SOIC Package

Applications

 Battery Chargers for Cellular Phones, Cordless

Phones, PDAs, Digital Cameras, and Power Tools

 Replaces Linear Regulators and RCC SMPS

Ordering Information

Part Number

Operating

Temperature Range

FAN302HLMY_F117

-40°C to +105°C

Description

The FAN302HLMY_F117 advanced PWM controller

significantly simplifies isolated power supply design that

requires CC regulation of the output. The output current

is precisely estimated with information in the primary

side of the transformer and controlled with an internal

compensation circuit. This removes the output current

sensing loss and eliminates all external Control Circuitry

(CC). The Green-Mode function, with an extremely low

operating current (200µA) in Burst Mode, maximizes the

light-load efficiency, enabling conformance to worldwide

Standby Mode efficiency guidelines.

Integrated protections include two-level pulse-by-pulse

current limit, Over-Voltage Protection (OVP), brownout

protection, and Over-Temperature Protection (OTP).

Compared with a conventional approach using an

external control circuit in the secondary side for CC

regulation, the FAN302HLMY_F117 can reduce total

cost, component count, size, and weight; while

simultaneously increasing efficiency, productivity, and

system reliability.

VO

Maximum

Typical

Minimum

IO

Figure 1. Typical Output V-I Characteristic

Package

8-Lead, Small Outline Package (SOIC),

JEDEC MS-012, .150-Inch Narrow Body

Packing

Method

Tape & Reel

© 2012 Fairchild Semiconductor Corporation

FAN302HLMY_F117 • Rev. 1.0.1

www.fairchildsemi.com

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