LM5020MM-1 National Semiconductor, LM5020MM-1 Datasheet

Pulse Width Modulation (PWM) Controller IC

LM5020MM-1

Manufacturer Part Number

LM5020MM-1

Description

Pulse Width Modulation (PWM) Controller IC

Manufacturer

National Semiconductor

Datasheets

1.LM5020MM-1.pdf (13 pages)

2.LM5020MM-1.pdf (12 pages)

3.LM5020MM-1.pdf (12 pages)

Specifications of LM5020MM-1

Peak Reflow Compatible (260 C)

Supply Voltage Max

100V

Leaded Process Compatible

Package / Case

10-SOIC

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

LM5020MM-1

Manufacturer:

NS/国半

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LM5020MM-1/NOPB

Manufacturer:

Quantity:

15 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LM5020MM-1/NOPB

Manufacturer:

NSC

Quantity:

3 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

LM5020MM-1/NOPB

Manufacturer:

NS/国半

Quantity:

20 000

Company:

Amily Shenzhen XNWY Technology Co., Ltd

Part Number:

LM5020MM-1/NOPB

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Download datasheet (229Kb)

LM5020

100V Current Mode PWM Controller

General 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 in-

herent 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. Addi-

tional 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

MSOP-10 and LLP-10 packages.

Connection Diagram

Ordering Information

LM5020MM-1

LM5020MMX-1

LM5020SD-1

LM5020SDX-1

LM5020MM-2

LM5020MMX-2

LM5020SD-2

LM5020SDX-2

Order Number

MSOP, 80% Duty Cycle Limit

LLP, 80% Duty Cycle Limit

MSOP, 50% Duty Cycle Limit

LLP, 50% Duty Cycle Limit

Description

DS200950

10-Lead MSOP, LLP

Top View

Features

n Internal Start-up Bias Regulator

n Error Amplifier

n Precision Voltage Reference

n Programmable Softstart

n 1A Peak Gate Driver

n Maximum Duty Cycle Limiting (80% for LM5020-1 or

n Programmable Line Under Voltage Lockout (UVLO) with

n Cycle-by-Cycle Over-Current Protection

n Slope Compensation (LM5020-1)

n Programmable Oscillator Frequency with

n Current Sense Leading Edge Blanking

n Thermal Shutdown Protection

Packages

n MSOP-10

n LLP-10 (4 mm x 4 mm)

NSC Package Drawing

50% for LM5020-2)

Adjustable Hysteresis

Synchronization Capability

MUB-10A

SDC-10A

20095001

1000 Units on Tape and Reel

3500 Units on Tape and Reel

1000 Units on Tape and Reel

4500 Units on Tape and Reel

1000 Units on Tape and Reel

3500 Units on Tape and Reel

1000 Units on Tape and Reel

4500 Units on Tape and Reel

Supplied As

October 2004

www.national.com

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