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LM5020 Datasheet(PDF) 1 Page - Texas Instruments |
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LM5020 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 19 page LM5020 www.ti.com SNVS275F – MAY 2004 – REVISED APRIL 2006 LM5020 100V Current Mode PWM Controller Check for Samples: LM5020 1 FEATURES • Programmable Oscillator Frequency with Synchronization Capability 2 • Internal Start-up Bias Regulator • Current Sense Leading Edge Blanking • Error Amplifier • Thermal Shutdown Protection • Precision Voltage Reference • Programmable Softstart APPLICATIONS • 1A Peak Gate Driver • Telecommunication Power Converters • Maximum Duty Cycle Limiting (80% for • Industrial Power Converters LM5020-1 or 50% for LM5020-2) • +42V Automotive Systems • Programmable Line Under Voltage Lockout (UVLO) with Adjustable Hysteresis • Cycle-by-Cycle Over-Current Protection • Slope Compensation (LM5020-1) 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 MSOP-10 and LLP-10 packages. Packages • MSOP-10 • LLP-10 (4 mm x 4 mm) 1 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. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2004–2006, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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Similar Description - LM5020_14 |
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