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Powerint TOP265KG DER275 30W高效电源解决方案

文章出处:8gled.com作者:格烁光电发表时间:2018-07-23
厦门代孕-母乳频道wS2I【首选女娲助孕】Powerint公司的DER275 30W高效电源解决方案是采用TOPSwitch-JX系列的TOP265KG,它集成了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,故障保护和其它控制电路。TOPSwitch-JX系列可提供10W-245W输出功率,265 VAC时无负载功耗低于100mW,具有多种扩展保护功能,主要用在笔记本电脑,通用适配器,打印机,LCD监视器,STB,PC或LCD TV待机和音频放大器。本文介绍了TOPSwitch-JX系列产品亮点,方框图,高效19V/65W和12V/30W的通用输入反激电源电路图,以及采用TOPSwitchTM-JX TOP265KG的高效30W电源参考设计主要指标,电路图,材料清单和PCB布局图。

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.

TOPSwitch-JX系列产品亮点:

EcoSmart – Energy Efficient

? Ideal for applications from 10 W to 245 W

? 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 start-up 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:

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

? Low profile hor佛山代孕-【和您一起看世界no0e】分娩频道izontal 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 profile surface mounted for ultra-slim designs

? Heat transfer to PCB via exposed pad and SOURCE pins

? Supports wave or reflow soldering

? Extended creepage to DRAIN pin

? Heat sink is connected to SOURCE for low EMI

TOPSwitch-JX系列应用:

? Notebook or laptop adapter

? Generic adapter

? Printer

? LCD monitor

? Set-top box

? PC or LCD TV standby

? Audio amplifier

图1。TOPSwitch-JX系列方框图

图2。高效19V/65W通用输入反激电源电路图

图3。高效12V/30W通用输入反激电源电路图

采用TOPSwitchTM-JX TOP265KG的高效30W电源参考设计

High Efficiency 30 W Standby Power Supply Using TOPSwitchTM-JX TOP265KG

This document is an engineering report describing standby power supply utilizing a TOPSwitch-JX TOP265KG. This power supply is intended as a general purpose evaluation platform that operates from 110 VDC to 400 VDC input and provides a 12 V,continuous 30 W output.

高效30W电源参考设计主要特性:
?
Highly energy efficient
?
Full load efficiency >89%
?
Efficiency >86% above 10% load
?
Average efficiency >89% (25%, 50%, 75%, 100% load points)
?
No-load input power <100 mW for input voltages <385 VDC
?
Simplifies meeting ENERGY STAR 2.0, 80 Plus and EuP requirements
?
Low cost, low component count and small PCB footprint solution
?
Performance met without synchronous output rectification
?
132 kHz operation optimized core size and efficiency performance
?
Surface mount low-profile eSOP package
?
Integrated protection and reliability features
?
Line undervoltage lock out (UVLO)
?
Primary sensed output overvoltage shutdown (OVP). Latched OVP condition can be reset with a fast AC reset circuit.
?
Auto recovery output over current (OCP)
?
Meets limited power source (LPS) <100 VA requirement with a single point of failure
?
Accurate thermal shutdown with large hysteresis

图4。高效30W电源参考设计外形图
高效30W电源参考设计指标:


图5。高效30W电源参考设计电路图
高效30W电源参考设计材料清单:



图6。变压器电路图

图7。高效30W电源参考设计PCB布局图

厦门代孕-母乳频道wS2I【首选女娲助孕】 Powerint TOP265KG DER275 30W高效电源解决方案原创编辑请注明出来http://www.0769yg.com

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