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PowerInt TOP267VG 36.3W LCD监视器电源解决方案

文章出处:8gled.com作者:格烁光电发表时间:2018-07-23
苏州代孕-生育频道R9Er【专业包成功】PowerInt 公司的TOP267VG是TOPSwitch-JX系列产品,集成了725V功率MOSFET,高压开关电流源,多模式PWM控制,振荡器,热关断电路,故障保护以及其它控制电路.主要用在反激AC/DC转换器.本文介绍了TOPSwitch-JX系列产品主要特性, 功能方框图, 高效19V 65W和12V 30W通用输入反激电路图,以及采用TOPSwitchTM-JX TOP267VG的薄型36.3W LCD监视器电源主要特性, 电源指标,电路图, PCB布局图和所用材料清单(BOM).

TOP264-271 TOPSwitch-JX Family

TOPSwitch-JX cost effectivELy incorporates a 725 V power MOSFET, high voltage switched current source大连代孕-【好孕帮你创造价值3sgB】新生儿频道, multi-mode PWM control, oscillator, thermal shutdown circuit, fault protection and other control circuitry onto a monolithic device.

TOP264-271产品亮点:

EcoSmart® - Energy Efficient

Energy efficient 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 efficiency at all loads

132 kHz operation reduces transformer and power supply size

66 kHz option for highest efficiency requirements

Accurate programmable current limit

Optimized line feed-forward for line ripple rejection

Frequency jittering reduces EMI filter cost

Fully integrated soft-start for minimum startup stress

725 V rated MOSFET

Simplifies 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:

Low profile 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:

Vertical orientation for minimum PCB footprint

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

Extended creepage to DRAIN pin

Heat sink is connected to SOURCE for low EMI


图1.TOP264-271功能方框图 (E和V封装).

图2.TOP264-271高效19V 65W通用输入反激电路图

图3.TOP264-271高效12V 30W通用输入反激电路图

采用TOPSwitchTM-JX TOP267VG的薄型36.3W LCD监视器电源薄型36.3W LCD监视器电源主要特性:

Low profile <12 mm component height

Very low standby consumption

<100 mW input power with 6 mA load on 5 V output at 230 VAC input

<90 mW input power with 5 mA load on 5 V output at 230 VAC input

Very low no-load input power

No-load Input power of 55 mW at 230 VAC input

High full-load efficiency

>82% efficiency at 90 VAC / 60 Hz

Low TOPSwitch-JX device temperature

<92℃ at 90 VAC, 60 Hz, 25℃

<100℃ at 90 VAC, 60 Hz, 40℃

>12 dB margin on conducted EMI

Hysteretic output overvoltage protection

Hysteretic output short-circuit protection

Hysteretic thermal overload protection with large hysteresis prevents board

temperatures >100℃

薄型36.3W LCD监视器电源指标:


图4.薄型36.3W LCD监视器电源电路图

图5.薄型36.3W LCD监视器电源PCB布局图
材料清单(BOM):



图6.变压器电特性图

苏州代孕-生育频道R9Er【专业包成功】 PowerInt TOP267VG 36.3W LCD监视器电源解决方案原创编辑请注明出来http://www.huatejx.com

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