FSL4110LR データシートの表示（PDF） - Fairchild Semiconductor

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FSL4110LR

Green Mode Fairchild Power Switch

Fairchild Semiconductor 

December 2015

FSL4110LR

1000 V SenseFET Integrated Power Switch

Features

 Built-in Avalanche Rugged 1000 V SenseFET

 Precise Fixed Operating Frequency: 50 kHz

 VCC can be supplied from either bias-winding or self-

biasing.

 Soft Burst-Mode Operation Minimizing Audible Noise

 Random Frequency Fluctuation for Low EMI

 Pulse-by-Pulse Current Limit

 Various Protection Functions: Overload Protection

(OLP), Over-Voltage Protection (OVP), Abnormal

Over-Current Protection (AOCP), Internal Thermal

Shutdown (TSD) with Hysteresis. Under-Voltage

Lockout (UVLO) and Line Over-Voltage Protection

(LOVP) with Hysteresis.

 Built-in Internal Startup and Soft-Start Circuit

 Fixed 1.6 s Restart Time for Safe Auto-Restart Mode

of All Protections

Description

The FSL4110LR is an integrated pulse width

modulation (PWM) controller and 1000 V avalanche

rugged SenseFET specifically designed for high input

voltage offline Switching Mode Power Supplies (SMPS)

with minimal external components. VCC can be supplied

through integrated high-voltage power regulator without

auxiliary bias winding.

The integrated PWM controller includes a fixed-

frequency oscillator, Under-Voltage Lockout (UVLO),

Leading-Edge Blanking (LEB), optimized gate driver,

soft-start, temperature-compensated precise current

sources for loop-compensation, and variable protection

circuitry.

Compared with a discrete MOSFET and PWM controller

solution, the FSL4110LR reduces total cost, component

count, PCB size, and weight; while simultaneously

increasing efficiency, productivity, and system reliability.

This device provides a basic platform for cost-effective

design of a flyback converter.

Applications

 SMPS for Electric Metering

 Auxiliary Power Supply for 3-Phase Input Industrial

Systems

Ordering Information

Part Number Package

Operating

Junction

Temperature

Current

Limit

RDS(ON) (Max.)

Output Power Table(1)

45~460 VAC(2) 85~460 VAC(2)

FSL4110LRN

FSL4110LRLX

7-DIP

7-LSOP

-40°C ~ 125°C 0.52 A

10 Ω

4 W(3)

9 W(3)

Notes:

1. The junction temperature can limit the maximum output power.

2. Maximum practical continuous power in an open-frame design at 50 C ambient temperatures.

3. Bias winding condition.

© 2014 Fairchild Semiconductor Corporation

FSL4110LR • Rev. 1.3

www.fairchildsemi.com

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