Integrated Circuits (ICs)

FSL126MR

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ON Semiconductor

650V INTEGRATED POWER SWITCH WITH 67KHZ FREQUENCY AND ADJUSTABLE CURRENT LIMIT FOR 17W OFFLINE FLYBACK CONVERTERS

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Integrated Circuits (ICs)

FSL126MR

Active

ON Semiconductor

650V INTEGRATED POWER SWITCH WITH 67KHZ FREQUENCY AND ADJUSTABLE CURRENT LIMIT FOR 17W OFFLINE FLYBACK CONVERTERS

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Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	FSL126MR

Duty Cycle	77 %
Fault Protection	Over Load, Short Circuit, Over Voltage, Current Limiting, Over Temperature
Frequency - Switching	67 kHz
Internal Switch(s)	True
Mounting Type	Through Hole
Operating Temperature [Max]	105 °C
Operating Temperature [Min]	-40 °C
Output Isolation	Isolated
Package / Case	0.3 in
Package / Case	8-DIP
Package / Case	7.62 mm
Power (Watts)	21 W
Supplier Device Package	8-DIP
Topology	Flyback
Voltage - Breakdown	650 V
Voltage - Start Up	12 V
Voltage - Supply (Vcc/Vdd) [Max]	26 V
Voltage - Supply (Vcc/Vdd) [Min]	8 V

FSL126HR Series

650V Integrated Power Switch with 100kHz frequency and adjustable current limit for 17W offline flyback converters

Part	Output Isolation	Mounting Type	Internal Switch(s)	Voltage - Start Up	Operating Temperature [Max]	Operating Temperature [Min]	Topology	Duty Cycle	Power (Watts)	Supplier Device Package	Frequency - Switching	Fault Protection	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Package / Case	Package / Case	Package / Case	Voltage - Breakdown
ON Semiconductor FSL126HR	Isolated	Through Hole		12 V	105 °C	-40 °C	Flyback	77 %	21 W	8-DIP	100 kHz	Current Limiting Over Load Over Temperature Over Voltage Short Circuit	8 V	26 V	0.3 in	8-DIP	7.62 mm	650 V
ON Semiconductor FSL126MR	Isolated	Through Hole		12 V	105 °C	-40 °C	Flyback	77 %	21 W	8-DIP	67 kHz	Current Limiting Over Load Over Temperature Over Voltage Short Circuit	8 V	26 V	0.3 in	8-DIP	7.62 mm	650 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 2.84
		10	$ 1.80
		25	$ 1.54
		100	$ 1.25
		250	$ 1.12
		500	$ 1.04
		1000	$ 0.97
		2500	$ 0.89

Description

General part information

FSL126HR Series

The FSL126HR integrates a Pulse Width Modulator (PWM) and SenseFET is specifically designed for highperformance offline Switch-Mode Power Supplies (SMPS) with minimal external components. FSL126HR includes integrated high-voltage power switching regulators that combine an avalanche-rugged SenseFET with a current-mode PWM control block. The integrated PWM controller includes: Under-Voltage Lockout (UVLO) protection, Leading-Edge Blanking (LEB), a frequency generator for EMI attenuation, an optimized gate turn-on/turn-off driver, Thermal Shutdown (TSD) protection, and temperaturecompensated precision current sources for loop compensation and fault protection circuitry. The FSL126HR offers good soft-start performance. When compared to a discrete MOSFET and controller or RCC switching converter solution, the FSL126MR reduces total component count, design size, and weight; while increasing efficiency, productivity, and system reliability. This device provides a basic platform that is well suited for the design of cost-effective flyback converters.

Documents

Technical documentation and resources