Integrated Circuits (ICs)

TOP257EN

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POWER INTEGRATIONS

IC OFFLINE SWITCH FLYBACK 7ESIP

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Integrated Circuits (ICs)

TOP257EN

Active

POWER INTEGRATIONS

IC OFFLINE SWITCH FLYBACK 7ESIP

Deep-Dive with AI

DocumentsDatasheet

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	TOP257EN

Duty Cycle	78 %
Fault Protection	Current Limiting, Over Voltage, Over Temperature
Frequency - Switching	132 kHz, 66 kHz
Internal Switch(s)	True
Mounting Type	Through Hole
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-40 °C
Output Isolation	Isolated
Package / Case	6 Leads, 7-SSIP, Formed Leads, Exposed Pad
Power (Watts)	157 W
Supplier Device Package	eSIP-7C
Topology	Flyback
Voltage - Breakdown	700 V

TOP257 Series

Part	Fault Protection	Duty Cycle	Supplier Device Package	Output Isolation	Voltage - Breakdown	Frequency - Switching	Power (Watts)	Mounting Type	Topology	Package / Case	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case	Package / Case
POWER INTEGRATIONS TOP257LN	Current Limiting Over Temperature Over Voltage	78 %	eSIP-7F	Isolated	700 V	66 kHz 132 kHz	105 W	Through Hole	Flyback	6 Leads 7-SSIP Exposed Pad Formed Leads	-40 °C	150 °C
POWER INTEGRATIONS TOP257GN-TL	Current Limiting Over Temperature Over Voltage	78 %	SMD-8C	Isolated	700 V	66 kHz	41 W	Surface Mount	Flyback	8-SMD (7 Leads) Gull Wing	-40 °C	150 °C
POWER INTEGRATIONS TOP257LG	Current Limiting Over Temperature Over Voltage	78 %	eSIP-7F	Isolated	700 V	66 kHz 132 kHz	105 W	Through Hole	Flyback	6 Leads 7-SSIP Exposed Pad Formed Leads	-40 °C	150 °C
POWER INTEGRATIONS TOP257PN	Current Limiting Over Temperature Over Voltage	78 %	8-PDIP-C	Isolated	700 V	66 kHz	41 W	Through Hole	Flyback	7 Leads 8-DIP	-40 °C	150 °C	7.62 mm	0.3 in
POWER INTEGRATIONS TOP257GN	Current Limiting Over Temperature Over Voltage	78 %	SMD-8C	Isolated	700 V	66 kHz	41 W	Surface Mount	Flyback	8-SMD (7 Leads) Gull Wing	-40 °C	150 °C
POWER INTEGRATIONS TOP257EN	Current Limiting Over Temperature Over Voltage	78 %	eSIP-7C	Isolated	700 V	66 kHz 132 kHz	157 W	Through Hole	Flyback	6 Leads 7-SSIP Exposed Pad Formed Leads	-40 °C	150 °C
POWER INTEGRATIONS TOP257MG	Current Limiting Over Temperature Over Voltage	78 %	SDIP-10C	Isolated	700 V	66 kHz	41 W	Through Hole	Flyback	10-SDIP 9 Leads	-40 °C	150 °C	7.62 mm	0.3 in
POWER INTEGRATIONS TOP257PG	Current Limiting Over Temperature Over Voltage	78 %	8-PDIP-C	Isolated	700 V	66 kHz	41 W	Through Hole	Flyback	7 Leads 8-DIP	-40 °C	150 °C	7.62 mm	0.3 in
POWER INTEGRATIONS TOP257YN	Current Limiting Over Temperature Over Voltage	78 %	TO-220-7C	Isolated	700 V	66 kHz 132 kHz	157 W	Through Hole	Flyback	TO-220-7 Formed Leads 6 Leads	-40 °C	150 °C

Pricing

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

Distributor	Package	Quantity	$

Digikey	N/A	18	$ 2.02
	Tube	1	$ 2.02
		100	$ 1.66
		1000	$ 1.41

Description

General part information

TOP257 Series

Converter Offline Flyback Topology 66kHz, 132kHz eSIP-7C

Documents

Technical documentation and resources