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LM5000EP Datasheet

Enhanced Plastic High Voltage Switch Mode Regulator

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May 2004
LM5000EP
Enhanced Plastic High Voltage Switch Mode Regulator
General Description
The LM5000EP is a monolithic integrated circuit specifically
designed and optimized for flyback, boost or forward power
converter applications. The internal power switch is rated for
a maximum of 80V, with a current limit set to 2A. Protecting
the power switch are current limit and thermal shutdown
circuits. The current mode control scheme provides excellent
rejection of line transients and cycle-by-cycle current limiting.
An external compensation pin and the built-in slope compen-
sation allow the user to optimize the frequency compensa-
tion. Other distinctive features include softstart to reduce
stresses during start-up and an external shutdown pin for
remote ON/OFF control. There are two operating frequency
ranges available. The LM5000-3EP is pin selectable for
either 300kHz (FS Grounded) or 700kHz (FS Open). The
LM5000-6EP is pin selectable for either 600kHz (FS
Grounded) or 1.3MHz (FS Open). The device is available in
a low profile 16-lead TSSOP package or a thermally en-
hanced 16-lead LLP package.
ENHANCED PLASTIC
Extended Temperature Performance of −40˚C to +125˚C
Baseline Control - Single Fab & Assembly Site
Process Change Notification (PCN)
Qualification & Reliability Data
Solder (PbSn) Lead Finish is standard
Enhanced Diminishing Manufacturing Sources (DMS)
Support
Features
n 80V internal switch
n Operating input voltage range of 3.1V to 40V
n Pin selectable operating frequency
300kHz/700kHz (-3)
600kHz/1.3MHz (-6)
n Adjustable output voltage
n External compensation
n Input undervoltage lockout
n Softstart
n Current limit
n Over temperature protection
n External shutdown
n Small 16-Lead TSSOP or 16-Lead LLP package
Applications
n Flyback Regulator
n Forward Regulator
n Boost Regulator
n Distributed Power Converters
n Selected Military Applications
n Selected Avionics Applications
Ordering Information
PART NUMBER
LM5000-3MTCEP
(Notes 1, 2)
VID PART NUMBER
V62/04632-01
TBD
NS PACKAGE NUMBER (Note 3)
MTC16
TBD
Note 1: For the following (Enhanced Plastic) version, check for availability: LM5000-3MTCXEP, LM5000SD-3EP, LM5000SD-6EP, LM5000SDX-3EP,
LM5000SDX-6EP. Parts listed with an "X" are provided in Tape & Reel and parts without an "X" are in Rails.
Note 2: FOR ADDITIONAL ORDERING AND PRODUCT INFORMATION, PLEASE VISIT THE ENHANCED PLASTIC WEB SITE AT: www.national.com/
mil
Note 3: Refer to package details under Physical Dimensions
© 2004 National Semiconductor Corporation DS200983
www.DataSheet.in
www.national.com


National Semiconductor Electronic Components Datasheet

LM5000EP Datasheet

Enhanced Plastic High Voltage Switch Mode Regulator

No Preview Available !

Typical Application Circuit
Connection Diagram
LM5000EP Flyback Converter
Top View
20098301
20098304
www.national.com
www.DataSheet.in
2


Part Number LM5000EP
Description Enhanced Plastic High Voltage Switch Mode Regulator
Maker National Semiconductor
Total Page 18 Pages
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