Datasheet > A700X277M0004AT

A700X277M0004AT

更新时间： 2024-11-04 12:32:43

品牌	Logo	应用领域
德州仪器 - TI		控制器
页数	文件大小	规格书
17页	892K
描述
LM5020 100V Current Mode PWM Controller

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A700X277M0004AT 数据手册

LM5020

www.ti.com

SNVS275F –MAY 2004–REVISED APRIL 2006

LM5020 100V Current Mode PWM Controller

Check for Samples: LM5020

FEATURES

PACKAGES

•

Internal Start-up Bias Regulator

Error Amplifier

•

VSSOP-10

WSON-10 (4 mm x 4 mm)

Precision Voltage Reference

Programmable Softstart

1A Peak Gate Driver

DESCRIPTION

The LM5020 high voltage pulse-width-modulation

(PWM) controller contains all of the features needed

to implement single ended primary power converter

topologies. Output voltage regulation is based on

current-mode control, which eases the design of loop

compensation while providing inherent line feed-

forward. The LM5020 includes a high-voltage start-up

regulator that operates over a wide input range up to

100V. The PWM controller is designed for high speed

capability including an oscillator frequency range to

1MHz and total propagation delays less than 100ns.

Additional features include an error amplifier,

precision reference, line under-voltage lockout, cycle-

by-cycle current limit, slope compensation, softstart,

oscillator synchronization capability and thermal

shutdown. The controller is available in both VSSOP-

10 and WSON-10 packages.

Maximum Duty Cycle Limiting (80% for

LM5020-1 or 50% for LM5020-2)

•

Programmable Line Under Voltage Lockout

(UVLO) with Adjustable Hysteresis

•

Cycle-by-Cycle Over-Current Protection

Slope Compensation (LM5020-1)

Programmable Oscillator Frequency with

Synchronization Capability

•

Current Sense Leading Edge Blanking

Thermal Shutdown Protection

APPLICATIONS

•

Telecommunication Power Converters

Industrial Power Converters

+42V Automotive Systems

Typical Application Circuit

VIN

VCC

OUT

LM5020

UVLO

OUT

RT SYNC

GND

COMP

COMPENSATION

Figure 1. Non-Isolated Flyback Converter

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.

All trademarks are the property of their respective owners.

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...17

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与A700X277M0004AT相关器件

型号	品牌	获取价格	描述	数据表
A700X277M002AT	KEMET	获取价格	Aluminum Electrolytic Capacitor, Polarized, Aluminum (solid Polymer), 2V, 20% +Tol, 20% -T
A700X277M002ATE010	KEMET	获取价格	ALUMINUM ORGANIC CAPACITORS
A700X277M002ATE012	KEMET	获取价格	ALUMINUM ORGANIC CAPACITORS
A700X277M002ATE0127280	KEMET	获取价格	Aluminum Electrolytic Capacitor, Polarized, Aluminum (solid Polymer), 2V, 20% +Tol, 20% -T
A700X277M002ATE012C-7280	KEMET	获取价格	Aluminum Electrolytic Capacitor, Polarized, Aluminum, 2V, 20% +Tol, 20% -Tol, 270uF, 2917
A700X277M002ATE015	KEMET	获取价格	ALUMINUM ORGANIC CAPACITORS
A700X277M004AT	KEMET	获取价格	Aluminum Electrolytic Capacitor, Polarized, Aluminum (solid Polymer), 4V, 20% +Tol, 20% -T
A700X277M004ATE010	KEMET	获取价格	ALUMINUM ORGANIC CAPACITORS
A700X277M004ATE0107280	KEMET	获取价格	Aluminum Electrolytic Capacitor, Polarized, Aluminum (solid Polymer), 4V, 20% +Tol, 20% -T
A700X277M004ATE010C-7280	KEMET	获取价格	Aluminum Electrolytic Capacitor, Polarized, Aluminum, 4V, 20% +Tol, 20% -Tol, 270uF, 2917

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