Datasheet > CMPD2838E-NSA

CMPD2838E-NSA

更新时间： 2024-09-09 12:53:39

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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CMPD2838E-NSA 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CMPD2838E-NSA相关器件

型号	品牌	获取价格	描述	数据表
CMPD2838ETR	CENTRAL	获取价格	Rectifier Diode, 2 Element, 0.2A, 120V V(RRM), Silicon, PLASTIC PACKAGE-3
CMPD2838ETRLEADFREE	CENTRAL	获取价格	暂无描述
CMPD2838LEADFREE	CENTRAL	获取价格	Rectifier Diode, 2 Element, 0.2A, 75V V(RRM), Silicon, PLASTIC PACKAGE-3
CMPD2838TR	CENTRAL	获取价格	Rectifier Diode, 2 Element, 0.2A, 75V V(RRM), Silicon, PLASTIC PACKAGE-3
CMPD2838TR13	CENTRAL	获取价格	Rectifier Diode, 2 Element, 0.2A, 75V V(RRM), Silicon,
CMPD2838TR13LEADFREE	CENTRAL	获取价格	Rectifier Diode, 2 Element, 0.2A, 75V V(RRM), Silicon,
CMPD2838TRLEADFREE	CENTRAL	获取价格	Rectifier Diode, 2 Element, 0.2A, 75V V(RRM), Silicon,
CMPD2838TRPBFREE	CENTRAL	获取价格	Rectifier Diode, 2 Element, 0.1A, 75V V(RRM), Silicon,
CMPD300	CENTRAL	获取价格	FORWARD REFERENCE DIODE
CMPD3003	CENTRAL	获取价格	CURFACE MOUNT LOW LEAKAGE SWITCHING DIODE

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