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TOP249Y The Power Integrations TOP249Y is an offline switcher IC with a Flyback topology. It operates with a breakdown voltage of 700V and a switching frequency range of 66kHz to 132kHz.
Mfr Part #:

TOP249Y

Available from 1 distributors
Mfr Name: Power Integrations
Power Integrations
The Power Integrations TOP249Y is an offline switcher IC with a Flyback topology. It operates with a breakdown voltage of 700V and a switching frequency range of 66kHz to 132kHz.
✓ Total Stock: 6,500 pcs
$ Price Range: $0.75

TOP249Y Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
6,500 pcs
On Request
6500 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

TOP249Y Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Control Features
Duty Cycle
Fault Protection
Frequency
Internal Switch(s)
Lead Style
Mounting Type
Operating Temperature
Output Isolation
Power (Watts)
Supplier Device Package
Topology
Voltage
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TOP249Y Description

Short technical summary and product information.

The Power Integrations TOP249Y is an integrated offline switcher IC designed for Flyback converter applications. It features a high breakdown voltage of 700V and supports a wide switching frequency range from 66kHz to 132kHz, with a duty cycle of 66.8%. This device integrates the power MOSFET, PWM control, and fault protection circuitry onto a single chip.

 

Key electrical characteristics include a maximum power rating of 250W and integrated fault protection for current limiting, over temperature, and over voltage conditions. The control features include frequency control. The operating temperature range is -40°C to 150°C (TJ).

 

Packaged in a TO-220-7C configuration with formed leads, this component is designed for through-hole mounting. The TOPSwitch-GX series offers features like EcoSmart energy efficiency and integrated soft-start.

 

This device is suitable for various power supply designs requiring efficient and reliable AC-DC conversion.

TOP249Y Quick Information

Product Type: Offline Switcher
Series: TOPSwitch®-GX
Canonical Name: TOP249Y Offline Switcher
Subcategory: Offline Switches

TOP249Y Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

TOP249Y Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

TOP249Y Features

  • 700V breakdown voltage for high voltage applications.
  • 250W maximum power output capability.
  • 66kHz to 132kHz switching frequency range.
  • TO-220-7C package for through-hole mounting.
  • Integrated fault protection features.

TOP249Y Applications

  • Used in AC-DC power supply designs.
  • Ideal for isolated flyback converters.
  • Suitable for industrial and consumer electronics.
  • Supports up to 250W output power.

TOP249Y FAQs

7 frequently asked questions generated from this part’s specifications.
What is the breakdown voltage of the TOP249Y?

The breakdown voltage is 700V.

What package does the TOP249Y come in?

The TOP249Y is available in a TO-220-7C package with formed leads (6 leads) for through-hole mounting.

What is the operating temperature range of the TOP249Y?

The operating temperature range is -40°C to 150°C (junction).

What is the switching frequency range of the TOP249Y?

The switching frequency range is 66kHz to 132kHz.

What is the maximum duty cycle of the TOP249Y?

The maximum duty cycle is 66.8%.

What fault protection features does the TOP249Y include?

The TOP249Y includes current limiting, over-temperature, and over-voltage protection.

What is the power dissipation rating of the TOP249Y?

The power dissipation rating is 250W.

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