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TOP254EN, Микросхема

Ном. номер: 9000347141
Артикул: TOP254EN
Производитель: Power Integrations
Фото 1/2 TOP254EN, Микросхема
Фото 2/2 TOP254EN, Микросхема
160 руб.
241 шт. со склада г.Москва,
срок 2-3 недели
от 25 шт. — 131 руб.
от 50 шт. — 120 руб.
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The TOP254EN is an enhanced EcoSmart™ Integrated Offline Switcher with advanced feature set and extended power range. TOPSwitch-HX incorporates a 700V power MOSFET and high voltage switched current source, PWM control, oscillator, thermal shutdown circuit, fault protection and other control circuitry onto a monolithic device. TOPSwitch-HX is an integrated switched mode power supply chip that converts a current at the control input to a duty cycle at the open drain output of a high voltage power MOSFET. It features the high voltage start-up, the cycle-by-cycle current limiting, loop compensation circuitry, auto-restart and thermal shutdown, the TOPSwitch-HX incorporates many additional functions that reduce system cost, increase power supply performance and design flexibility. A patented high voltage CMOS technology allows both the high-voltage power MOSFET and all the low voltage control circuitry to be effectively integrated onto a single monolithic chip.

• Multi-mode operation maximizes efficiency at all loads
• Low thermal impedance junction-to-case
• Low height is ideal for adapters where space is limited
• Simple mounting using a clip to aid low manufacturing
• Output overvoltage protection is user programmable for latching/non-latching shutdown with AC reset
• Allows both primary and secondary sensing
• Line undervoltage detection prevents turn-OFF glitches
• Line overvoltage shutdown extends line surge limit
• Accurate programmable current limit
• Optimized line feed-forward for line ripple rejection
• Frequency jittering reduces EMI filter
• Heat sink is connected to SOURCE for low EMI
• Accurate hysteretic thermal shutdown function automatically recovers without requiring a reset
• Fully integrated soft-start for minimum start-up stress
• Extended creepage between DRAIN and all other pins improves field reliability
• Improved auto-restart delivers <3% of maximum power in short circuit and open loop fault conditions
• 132kHz Frequency reduces transformer and power supply size

Дополнительная информация

Datasheet TOP254EN

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