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TPS24720RGTT Datasheet(PDF) 1 Page - Texas Instruments |
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TPS24720RGTT Datasheet(HTML) 1 Page - Texas Instruments |
1 / 37 page 1 2 3 4 EN PROG TIMER GND 12 11 10 9 VCC SENSE GATE FFLTb Thermal Pad RGT Package (Top View) PINOUT TYPICAL APPLICATION (12 V at 10 A) TPS24720 R 2 m SENSE M CSD16403Q5 1 C T 56 nF VCC OUT GATE SENSE PGb PROG TIMER GND OV EN R 2.94 2 k R 90.9 k 1 R 3 10 k R 5 3.01 k LATCH IMON R 4 3.01 k FLTb FFLTb R 6 3.01 k ENSD SET R SET 51.1 R PROG 53.6 k R IMON 1.43 k V UVLO OV LMT FAULT = 10.83 V V = 14.02 V I = 12 A t = 7.56 ms C 1 0.1 F R 7 C OUT 470 F V IN V OUT 3 V R GATE 10 TPS24720 www.ti.com SLVSAL1B – MARCH 2011 – REVISED MAY 2011 2.5-V to 18-V High-Efficiency Adjustable Power-Limiting Hot-Swap Controller With Current Monitor and Overvoltage Protection Check for Samples: TPS24720 1 FEATURES APPLICATIONS • 2.5-V to 18-V Operation • Server Backplanes • Accurate Current Limiting for Startup • Storage Area Networks (SAN) • Programmable FET SOA Protection • Telecommunications Mezzanine Cards • Adjustable Current Sense Threshold • Medical Systems • Programmable Fault Timer • Plug-In Modules • Power-Good Output • Base Stations • Fast Breaker for Short-Circuit Protection • Analog Load-Current Monitor Output • Programmable UV and OV • Low-current Standby Mode • FET Fault Detection Flag • 3-mm × 3-mm, 16-Pin QFN package DESCRIPTION The TPS24720 is an easy-to-use, full-featured protection device for 2.5-V to 18-V power rails. This hot-swap controller drives an external N-channel MOSFET, while protecting source, load and external MOSFET against multiple potentially damaging events. During startup, load current and MOSFET power dissipation are limited to user-selected values. After startup, currents above the user-selected limit will be allowed to flow until programmed timeout – except in extreme overload events when load is immediately disconnected from source. Programmable power limiting ensures the external MOSFET operates inside its safe operating area (SOA) at all times. This allows use of smaller FETs while improving system reliability. Power good, Fault, FET Fault, and current monitor outputs are provided for system status monitoring and downstream load control. 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. PRODUCTION DATA information is current as of publication date. Copyright © 2011, 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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