You have entered a value in the highlighted fields below that contain invalid characters. Please revise your selection using valid characters only.

Product may not be an exact match for your search

You previously purchased this product. View in Order History



AC/DC Off-Line Switcher IC, TOPSwitch-HX, Flyback, 85 VAC - 265 VAC, 66 kHz, 4.08 A out, 119W, SIP-7


Image is for illustrative purposes only. Please refer to product description.

Manufacturer Part No:
Order Code:
Product Range
TOPSwitch-HX Series
Technical Datasheet:
TOP256EN   Datasheet
See all Technical Docs

Product Range Selector (TOPSwitch-HX Series)

See all from this product range

Product Overview

The TOP256EN is an enhanced EcoSmart™, Integrated Off-line Switcher with 30W peak, advanced feature set and extended power range. TOPSwitch-HX cost effectively incorporates a 700V power MOSFET, high voltage switched current source, PWM control, oscillator, thermal shutdown circuit, fault protection and other control circuitry onto a monolithic device.
  • Multi-mode operation maximizes efficiency at all loads
  • Low thermal impedance junction-to-case (2°C per watt)
  • Low height is ideal for adapters where space is limited
  • Simple mounting using a clip to aid low cost manufacturing
  • Line under-voltage (UV) detection prevents turn-off glitches
  • Line overvoltage (OV) shutdown extends line surge limit
  • Accurate programmable current limit
  • Optimized line feed-forward for line ripple rejection
  • Half frequency option for video applications
  • Frequency jittering reduces EMI filter cost
  • Heat sink is connected to SOURCE for low EMI
  • Fully integrated soft-start for minimum start-up stress
  • Energy efficient over entire load range
  • Less than 200mW at 230VAC, no load consumption
  • Standby power for 1W input


Power Management, Consumer Electronics

Product Information

Want to see similar products? Simply select your required attributes below and hit the button ×









TOPSwitch-HX Series

Find similar products Choose and modify the attributes above to find similar products.

Technical Docs (2)

Best Seller

Available for back order

Deliveries start from 6/5/21

Notify me when back in stock


Pricing is unavailable. Please contact customer services.

Price for:
Multiple: 1 Minimum: 1
Quantity Price Your Price
1+ Php116.70
Promotional price
Contract Price
Web only price
Web only contract price
100+ Php96.50
Promotional price
Contract Price
Web only price
Web only contract price
1000+ Php87.30
Promotional price
Contract Price
Web only price
Web only contract price

Pricing is unavailable. Please contact customer services.

No longer stocked:: No Longer Manufactured::
Add to Basket Add to Basket Pre-Order
Restricted Item
Enter Your Part No/Line Note
Total Price:
Total Price: ( )
Total Price: --