поискавой системы для электроныых деталей |
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TPS40040 датащи(PDF) 1 Page - Texas Instruments |
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TPS40040 датащи(HTML) 1 Page - Texas Instruments |
1 / 38 page 1 FEATURES APPLICATIONS CONTENTS DESCRIPTION SIMPLIFIED APPLICATION DIAGRAM 1 2 3 4 8 7 6 5 FB COMP VDD TPS40040/1 GND VOUT VIN EN HDRV SW BOOT LDRV TPS40040, TPS40041 SLUS700D – MARCH 2006 – REVISED DECEMBER 2007 www.ti.com LOW PIN COUNT, LOW VIN (2.5 V TO 5.5 V) SYNCHRONOUS BUCK DC-TO-DC CONTROLLER WITH ENABLE • Point of Load 23 • 2.25-V to 5.5-V Input • Telecommunications • Output Voltage from 0.6 V to 90% of VIN • DC to DC Modules • High-Side Drive for N-Channel FET • Set Top Boxes • Supports Pre-Biased Outputs • Adaptive Anti-Cross Conduction Gate Drive • 1%, 0.6-V Reference • Two Fixed Switching Frequency Versions, Device Ratings 2 TPS40040 (300 kHz) and TPS40041 (600 kHz) Electrical Characteristics 3 • Three Selectable Short Circuit Protection Device Information 8 Levels of 105 mV, 180 mV and 310 mV Application Information 10 • Hiccup Restart from Faults Design Examples 19 • Voltage Mode Control • Active Low Enable Additional References 32 • Thermal Shutdown Protection at 145C • 8-Pin, 3-mm x 3-mm SON with Ground Connection to Thermal Pad The TPS40040 and TPS40041 dc-to-dc controllers are designed to operate from a 2.25-V to 5.5-V input source. To reduce the number of external components, several operating parameters are fixed internally; namely, frequency, soft start time, and short circuit protection (SCP) levels. For example, the operating frequencies of TPS40040/1 are 300 kHz/600 kHz, respectively. 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 PowerPAD is a trademark of Texas Instruments. 3 Predictive Gate Drive is a registered trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2006–2007, 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. |
Аналогичный номер детали - TPS40040_15 |
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Аналогичное описание - TPS40040_15 |
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