Fairchild FSL116HR Data Handbook
Summary
The FSL116HR is an advanced integrated Pulse Width Modulator controller designed to create highly efficient Switched-Mode Power Supplies (SMPS) with minimal external components. This essential device features avalanche-rugged SenseFET technology and built-in protections (like UVLO, OVP, and soft-start). The accompanying manual provides comprehensive design guidelines, technical diagrams, and operational details for implementing low-power AC/DC solutions in various applications, including VCR/DVD players, home appliances, and adapters. It is the ideal component solution for electronics engineers needing reliable, high-performance power regulation.
Page 1 Text Content
116H reen e F airch ild er S itch (F
April 2012
FSL116HR Green Mode Fairchild Power Switch (FPS™) Features Description
Internal Avalanche-Rugged Sense FET (650V) The FSL116HR integrated Pulse Width Modulator (PWM) and Sense FET is specifically designed for high-
Under 50m W Standby Power Consumption at
performance offline Switched-Mode Power Supplies
265VAC, No-load Condition with Burst Mode
(SMPS) with minimal external components. FSL116HR Precision Fixed Operating Frequency with includes integrated high-voltage power switching regulators that combine an avalanche-rugged
Frequency Modulation for Attenuating EMI
Sense FET with a Current-Mode PWM control block.
Internal Startup Circuit
The integrated PWM controller includes: Under-Voltage
Built-in Soft-Start: 20ms
Lockout (UVLO) protection, Leading-Edge Blanking Pulse-by-Pulse Current Limiting (LEB), a frequency generator for EMI attenuation, an optimized gate turn-on / turn-off driver, Thermal
Various Protections: Over-Voltage Protection
Shutdown (TSD) protection, and temperature-
(OVP), Overload Protection (OLP), Output-Short
compensated precision current sources for loop
Protection (OSP), Abnormal Over-Current
compensation and fault-protection circuitry. The
Protection (AOCP), Internal Thermal Shutdown
FSL116HR offers good soft-start performance. When
Function with Hysteresis (TSD)
compared to a discrete MOSFET and controller or RCC switching converter solution, the FSL116HR reduces
Auto-Restart Mode
total component count, design size, and weight; while
Under-Voltage Lockout (UVLO) increasing efficiency, productivity, and system reliability.
This device provides a basic platform that is well suited
Low Operating Current: 1.8m A
for the design of cost-effective flyback converters.
Adjustable Peak Current Limit
Maximum Output Power(1)
Applications
230VAC ±15%(2) 85-265VAC
SMPS for VCR, STB, DVD, & DVCD Players
Open Open
Adapter(3) Adapter(3)
SMPS for Home Appliance Frame Frame
Adapter 11W 16W 10W 14W Notes:
Related Resources 1. The junction temperature can limit the maximum
output power.
AN-4137 — Design Guidelines for Offline Flyback
2. 230VAC or 100/115VAC with doubler.
Converters Using FPS™
3. Typical continuous power in a non-ventilated AN-4141 — Troubleshooting and Design Tips for enclosed adapter measured at 50°C ambient.
Fairchild Power Switch (FPS™) Flyback Applications AN-4147 — Design Guidelines for RCD Snubber of Flyback Fairchild Power Supply Web Designer — Flyback Design & Simulation - In Minutes at No Expense
Ordering Information
Operating
Part Number Top Mark Package Packing Method
Temperature Range
FSL116HR -40 to 105°C FSL116HR 8-Lead, Dual Inline Package (DIP) Rail
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FSL116HR • Rev. 1.0.1
Page Summary Contents For Fairchild FSL116HR Data Handbook
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 13 |
| File Size | 937.49 KB |
| Published | May 31, 2026 |
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Frequently Asked Questions
What is the operating temperature range for the FSL116HR?
The operational temperature range is -40 to 105°C.
How does the device achieve EMI attenuation and protection?
It includes a leading-edge blanking circuit (LEB) and a frequency generator for EMI attenuation, along with multiple protections like OVP, UVLO, TSD, and LOP.
Can I adjust the peak current limit of the SenseFET?
Yes, by diverting 0.4mA from its pin to a parallel combination of an internal 6kΩ resistor and any external resistor (R).
What is the suggested application for this module?
It is suitable for SMPS designs for various devices such as VCRs, STB, DVD readers, and home appliances.