TOP270EG集成電路（IC）的ACDC轉(zhuǎn)換器離線開關(guān)規(guī)格書PDF中文資料

Description

TOPSwitch-JX cost effectively incorporates a 725 V power MOSFET, high-voltage switched current source, multi-mode PWM control, oscillator, thermal shutdown circuit, fault protection and other control circuitry onto a monolithic device.

Product Highlights

EcoSmart – Energy Effcient

? Ideal for applications from 10 W to 245 W

? Energy effcient over entire load range

? No-load consumption below 100 mW at 265 VAC

? Up to 750 mW standby output power for 1 W input at 230 VAC

High Design Flexibility for Low System Cost

? Multi-mode PWM control maximizes effciency at all loads

? 132 kHz operation reduces transformer and power supply size

? 66 kHz option for highest effciency requirements

? Accurate programmable current limit

? Optimized line feed-forward for line ripple rejection

? Frequency jittering reduces EMI flter cost

? Fully integrated soft-start for minimum start-up stress

? 725 V rated MOSFET

? Simplifes meeting design derating requirements

Extensive Protection Features

? Auto-restart limits power delivery to <3 during overload faults

? Output short-circuit protection (SCP)

? Output over-current protection (OCP)

? Output overload protection (OPP)

? Output overvoltage protection (OVP)

? User programmable for hysteretic/latching shutdown

? Simple fast AC reset

? Primary or secondary sensed

? Line undervoltage (UV) detection prevents turn-off glitches

? Line overvoltage (OV) shutdown extends line surge withstand

? Accurate thermal shutdown with large hysteresis (OTP)

Advanced Package Options

? eDIP?-12 package:

? 43 W / 117 W universal input power output capability with PCB / metal heat sink

? Low profle horizontal orientation for ultra-slim designs

? Heat transfer to both PCB and heat sink

? Optional external heat sink provides thermal impedance equivalent to a TO-220

? eSIP?-7C package:

? 177 W universal input output power capability

? Vertical orientation for minimum PCB footprint

? Simple heat sink mounting using clip provides thermal impedance equivalent to a TO-220

? eSOP?-12 package:

? 66 W universal input output power capability

? Low profle surface mounted for ultra-slim designs

? Heat transfer to PCB via exposed pad and SOURCE pins

? Supports wave or re?ow soldering

? Extended creepage to DRAIN pin

? Heat sink is connected to SOURCE for low EMI

Typical Applications

? Notebook or laptop adapter

? Generic adapter

? Printer

? LCD monitor

? Set-top box

? PC or LCD TV standby

? Audio amplifer