Fairchild FSL136MR Specifications Guide
Summary
This advanced integrated power switch is a high-efficiency, avalanche-rugged solution for developing cost-effective flyback converters in off-line Switch-Mode Power Supplies (SMPS). Featuring built-in PWM control and SenseFET technology, it minimizes component count while maximizing system reliability. The manual provides comprehensive technical documentation detailing key features—such as low standby power consumption and diverse protection mechanisms (OVP/OLP)—making it ideal for electronics designers creating home appliance or consumer AV equipment.
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FSL136M reen M ode Fairchild Pow er Sw itch (FPS™
June 2010
FSL136MR Green Mode Fairchild Power Switch (FPS™) Features Description
Internal Avalanche-Rugged Sense FET (650V) The FSL136MR integrated Pulse Width Modulator (PWM) and Sense FET is specifically designed for high-
Under 50m W Standby Power Consumption at
performance offline Switch-Mode Power Supplies
265VAC, No-load Condition with Burst Mode
(SMPS) with minimal external components. FSL136MR
Precision Fixed Operating Frequency with includes integrated high-voltage power switching Frequency Modulation for Attenuating EMI regulators that combine an avalanche-rugged
Internal Startup Circuit Sense FET with a current-mode PWM control block. Built-in Soft-Start: 15ms The integrated PWM controller includes: Under-Voltage Lockout (UVLO) protection, Leading-Edge Blanking
Pulse-by-Pulse Current Limiting
(LEB), a frequency generator for EMI attenuation, an Various Protections: Over-Voltage Protection optimized gate turn-on/turn-off driver, Thermal
(OVP), Overload Protection (OLP), Output-Short Shutdown (TSD) protection, and temperature- Protection (OSP), Abnormal Over-Current compensated precision current sources for loop Protection (AOCP), Internal Thermal Shutdown
compensation and fault protection circuitry. The
Function with Hysteresis (TSD)
FSL136MR offers good soft-start performance. When Auto-Restart Mode compared to a discrete MOSFET and controller or RCC switching converter solution, the FSL136MR reduces
Under-Voltage Lockout (UVLO)
total component count, design size, and weight; while
Low Operating Current: 1.8m A increasing efficiency, productivity, and system reliability.
This device provides a basic platform that is well suited
Adjustable Peak Current Limit
for the design of cost-effective flyback converters.
Applications
Maximum Output Power(1)
SMPS for VCR, STB, DVD, & DVCD Players
230VAC ± 15%(2) 85-265VAC
SMPS for Home Appliance
Adapter(3) Open
Adapter Frame Adapter(3) Open Frame
Related Resources
Notes: 1. The junction temperature can limit the maximum
AN-4137 — Design Guidelines for Off-line Flyback
output power.
Converters using FPS™
2. 230VAC or 100/115VAC with doubler.
AN-4141 — Troubleshooting and Design Tips for 3. Typical continuous power in a non-ventilated Fairchild Power Switch (FPS™) Flyback enclosed adapter measured at 50°C ambient. Applications AN-4147 — Design Guidelines for RCD Snubber of Flyback
Ordering Information
Part Number Operating
Temperature Range Top Mark Package Packing Method
FSL136MR -40 to +105°C FSL136MR 8-Lead, Dual Inline Package (DIP) Rail
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FSL136MR • Rev. 1.0.7
Page Summary Contents For Fairchild FSL136MR Specifications Guide
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 13 |
| File Size | 915.40 KB |
| Published | June 18, 2026 |
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Frequently Asked Questions
What protections are built into this device?
It includes various safeguards such as Under-Voltage Lockout (UVLO), Over-Voltage Protection (OVP), Overload Protection (OLP), Thermal Shutdown (TSD), and Abnormal Over-Current Protection (AOCP).
How does the device operate in standby mode?
It uses Burst Mode, which alternately enables and disables SenseFET switching to reduce loss when standing by.
What limits the maximum output power of this module?
The junction temperature can limit the maximum continuous output power delivered by the converter.
What is the input voltage compatibility range?
It supports a wide operational AC range between 85V and 265V AC.