Datasheet > LM5023

LM5023

更新时间： 2024-11-04 12:30:23

品牌	Logo	应用领域
德州仪器 - TI		控制器
页数	文件大小	规格书
30页	2983K
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AC-DC Quasi-Resonant Current Mode PWM Controller

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SNVS961C –APRIL 2013–REVISED AUGUST 2013

AC-DC Quasi-Resonant Current Mode PWM Controller

FEATURES

APPLICATIONS

•

Critical Conduction Mode

•

Universal Input AC-DC Notebook Adapters 10

W to 65 W

Peak Current Mode Control Mode

•

High Efficiency Housekeeping and Auxiliary

Power

Skip Cycle Mode for Low Standby Power

Hiccup Mode for Continuous Overload

Protection

•

Battery Chargers

Consumer Electronics (DVD Players, Set-Top

Boxes, DTV, Gaming, Printers, etc)

•

Cycle-by-Cycle Over-Current Protection

Maintains Accuracy over the Universal AC

Line

DESCRIPTION

•

Line Current Feed Forward

The LM5023 is a Quasi-Resonant Pulse Width

Modulated (PWM) controller which contains all of the

features needed to implement a highly efficient off-

line power supply. The LM5023 uses the transformer

auxiliary winding for demagnetization detection to

ensure Critical Conduction Mode (CCM) operation.

The LM5023 features a hiccup mode for over current

protection with an auto restart to reduce the stress on

the power components during an overload. A skip

cycle mode which reduces power consumption at

light loads for energy conservation applications

(ENERGY STAR®, CEPCP, etc.). The LM5023 also

uses the transformer auxiliary winding for output

overvoltage (OVP) protection, if an OVP fault is

detected the LM5023 latches off the controller.

OVP Protection by Sensing the Aux Winding

Integrated 0.7 A Peak Gate Driver

Direct Opto-Coupler Interface

Leading Edge Blanking of Current Sense

Signal

•

Maximum Frequency Clamp 130 kHz

Programmable Soft Start

Thermal Shutdown

8-Pin MSOP Package

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...30

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LM5023 替代型号

型号	品牌	替代类型	描述	数据表
UCC28704	TI	功能相似	具有初级侧调节 (PSR) 功能的高效离线 CV 和 CC 反激控制器
UCC28610	TI	功能相似	GREEN-MODE FLYBACK CONTROLLER
UCC28600	TI	功能相似	准谐振开关电源IC

与LM5023相关器件

型号	品牌	获取价格	描述	数据表
LM5023MM-2/NOPB	TI	获取价格	交流/直流准谐振电流模式 PWM 控制器 \| DGK \| 8 \| -40 to 125
LM5023MMX-2/NOPB	TI	获取价格	交流/直流准谐振电流模式 PWM 控制器 \| DGK \| 8 \| -40 to 125
LM5025	NSC	获取价格	Active Clamp Voltage Mode PWM Controller
LM5025	TI	获取价格	具有 P 或 N 沟道钳位 FET 和 0.25V CS 阈值的 90V 有源钳位电压模式
LM5025A	NSC	获取价格	Active Clamp Voltage Mode PWM Controller
LM5025A	TI	获取价格	具有 P 或 N 沟道钳位 FET 和 0.5V CS 阈值的 90V 有源钳位电压模式
LM5025AMTC	NSC	获取价格	Active Clamp Voltage Mode PWM Controller
LM5025AMTC/NOPB	ROCHESTER	获取价格	3 A SWITCHING CONTROLLER, 650 kHz SWITCHING FREQ-MAX, PDSO16, TSSOP-16
LM5025AMTC/NOPB	TI	获取价格	具有 P 或 N 沟道钳位 FET 和 0.5V CS 阈值的 90V 有源钳位电压模式
LM5025AMTCX	NSC	获取价格	Active Clamp Voltage Mode PWM Controller

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