Datenblatt-Suchmaschine für elektronische Bauteile |
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LM25037 Datenblatt(PDF) 1 Page - Texas Instruments |
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LM25037 Datenblatt(HTML) 1 Page - Texas Instruments |
1 / 29 page LM25037 UVLO PGND AGND COMP OUTB OUTA VCC SS RT1 REF RES CS VIN VIN VOUT RT2 FB RAMP Isolated Feedback LM25037, LM25037-Q1 www.ti.com SNVS572C – JULY 2008 – REVISED JANUARY 2010 LM25037/LM25037-Q1 Dual-Mode PWM Controller With Alternating Outputs Check for Samples: LM25037, LM25037-Q1 1 FEATURES • Oscillator Synchronization Capability with Low Frequency Lockout Protection 2 • LM25037-Q1 is an Automotive Grade Product DESCRIPTION that is AEC-Q100 Grade 1 Qualified (-40°C to The LM25037 PWM controller contains all the 125°C Operating Junction Temperature) features necessary to implement balanced double- • Ultra Wide Input Operating Range from 5.5V to ended power converter topologies, such as push-pull, 75V half-bridge and full-bridge. These double-ended • Alternating Outputs for Double-ended topologies allow for higher efficiencies and greater power densities compared to common single-ended Topologies topologies such as the flyback and forward. The • Current-mode or Feed-forward Voltage-mode LM25037 can be configured for either voltage mode Control or current mode control with minimum external • Programmable Maximum Duty Cycle Limit components. Two alternating gate drive outputs are provided, each capable of 1.2A peak output current. • 2.0% Feedback Reference Accuracy The LM25037 can be configured to operate directly • High Gain-bandwidth Error Amplifier from the input voltage rail over an ultra-wide range of • Programmable Line Under-voltage Lockout 5.5V to 75V. Additional features include (UVLO) with Adjustable Hysteresis programmable maximum duty cycle limit, line under- voltage lockout, cycle-by-cycle current limit and a • Versatile Dual Mode Over-current Protection hiccup mode fault protection with adjustable timeout with Hiccup Delay Timer delay, soft-start and a 2 MHz capable oscillator with • Programmable Soft-start synchronization capability, precision reference and • Precision 5V Reference Output thermal shutdown. • Current Sense Leading Edge Blanking PACKAGE • Resistor Programmed 2 MHz Capable Oscillator • 16-Lead TSSOP Simplified Push-Pull Power Converter 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 © 2008–2010, 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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Ähnliche Beschreibung - LM25037_14 |
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