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TPS40077PWPRG4 Fiches technique(PDF) 1 Page - Texas Instruments |
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TPS40077PWPRG4 Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 43 page www.ti.com FEATURES CONTENTS DESCRIPTION APPLICATIONS SIMPLIFIED APPLICATION DIAGRAM S0202-01 5 13 12 16 15 1 2 3 KFF RT LVBP SGND VDD HDRV SW DBP 4 PGD 11 ILIM TPS40077PWP 6 SS 7 FB 8 COMP 14 BOOST LDRV 10 PGND 9 Powergood VOUT VDD VOUT VDD TPS40077 SLUS714 – JANUARY 2007 HIGH-EFFICIENCY, MIDRANGE-INPUT, SYNCHRONOUS BUCK CONTROLLER WITH VOLTAGE FEED-FORWARD • Operation Over 4.5-V to 28-V Input Range Device Ratings. . . . . . . . . . . . . . . . . . . . . . . . 2 • Programmable, Fixed-Frequency, up to 1-MHz, Voltage-Mode Controller Electrical Characteristics. . . . . . . . . . . . . . . . . 4 • Predictive Gate Drive™ Terminal Information. . . . . . . . . . . . . . . . . . . . 11 Anti-Cross-Conduction Circuitry Application Information. . . . . . . . . . . . . . . . . . 14 • <1% Internal 700-mV Reference Example Applications. . . . . . . . . . . . . . . . . . . 23 • Internal Gate Drive Outputs for High-Side and References. . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Synchronous N-Channel MOSFETs • 16-Pin PowerPAD™ Package • Thermal Shutdown Protection The TPS40077 is a midvoltage, wide-input (4.5-V to • Pre-Bias Compatible 28-V), synchronous, step-down controller, offering • Power-Stage Shutdown Capability design flexibility for a variety of user-programmable • Programmable High-Side Sense Short-Circuit functions, including soft start, UVLO, operating Protection frequency, voltage feed-forward, and high-side, FET-sensed, short-circuit protection. • Power Modules • Networking/Telecom • PCI Express • Industrial • Servers 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. Predictive Gate Drive, PowerPAD are trademarks of Texas Instruments. All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2007, 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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