LM5000EP Datasheet | National Semiconductor

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 pensation pin and the built-in slope pensation allow the user to optimize the frequency pensation. 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 300k Hz (FS Grounded) or 700k Hz (FS Open). The LM5000-6EP is pin selectable for either 600k Hz (FS Grounded) or 1.3MHz (FS Open). The device is available in a low profile 16-lead TSSOP package or a thermally enhanced 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 (Pb Sn) Lead Finish is standard Features n 80V internal switch n Operating input voltage range of 3.1V to 40V n Pin selectable operating frequency 300k Hz/700k Hz (-3) 600k Hz/1.3MHz (-6) n Adjustable output voltage n External pensation 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 n n n n n Flyback Regulator Forward Regulator Boost Regulator Distributed Power Converters Selected Military Applications Selected Avionics Applications - Enhanced Diminishing Manufacturing Sources (DMS) Support 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...