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TPS40075RHLT датащи(PDF) 1 Page - Texas Instruments |
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TPS40075RHLT датащи(HTML) 1 Page - Texas Instruments |
1 / 44 page www.ti.com FEATURES APPLICATIONS CONTENTS DESCRIPTION 1 2 3 4 19 18 17 16 SYNC PGD LVBP RT SA− SAO GND SS TPS40075 15 14 13 12 KFF ILIM VDD HDRV 5 6 7 8 FB COMP PGND LDRV 9 DBP 20 SA+ 10 SW 11 BOOST SYNC IN PowerGood OUT UDG−04075 VIN VOUT+ VOUT− VOUT− (at Load) VOUT+ (at Load) TPS40075 SLUS676 – MAY 2006 MIDRANGE INPUT SYNCHRONOUS BUCK CONTROLLER WITH VOLTAGE FEED-FORWARD The TPS40075 drives external N-channel MOSFETs using second generation Predictive Gate Drive to • Operation Over 4.5-V to 28-V Input Range minimize conduction in the body diode of the low • Fixed-Frequency Voltage-Mode Controller side FET and maximize efficiency. Pre-biased outputs are supported by not allowing the low side • Integrated Unity Gain Amplifier for Remote FET to turn on until the voltage commanded by the Output Sensing closed loop soft start is greater than the pre-bias • Predictive Gate Drive™ Generation II for voltage. Voltage feed forward provides good Improved Efficiency response to input transients and provides a constant • <1% Internal 700-mV Reference PWM gain over a wide input voltage operating range to ease compensation requirements. Programmable • Input Voltage Feed Forward Control short circuit protection provides fault current limiting • Prebiased Output Compatible and hiccup recovery to minimize power dissipation • Internal Gate Drive Outputs for High-Side and with a shorted output. The 20 pin QFN package Synchronous N-Channel MOSFETs gives good thermal performance and a compact footprint. • Switching Frequency Programmable to 1 MHz • 20-Pin QFN Package SIMPLIFIED APPLICATION DIAGRAM • Thermal Shutdown Protection • Software Design Tool and EVM Available • Power Modules • Networking/Telecom • Industrial • Servers Device Ratings 2 Electrical Characteristics 4 Terminal Information 12 Application Information 15 Design Example 26 Additional References 40 The TPS40075 is a mid voltage, wide input (4.5-V to 28-V), synchronous, step-down controller, offering design flexibility for a variety of user programmable functions, including; soft start, UVLO, operating frequency, voltage feed-forward and high-side FET sensed short circuit protection. 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 is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 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. |
Аналогичный номер детали - TPS40075RHLT |
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Аналогичное описание - TPS40075RHLT |
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