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TPS2490DGSG4 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS2490DGSG4 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 22 page 3,0 mm X 4,88 mm Actual Size www.ti.com 1 2 3 4 5 10 9 8 7 6 EN VREF PROG TIMER GND VCC SENSE GATE OUT PG DGS Package (Top View) 7 VCC SENSE GATE OUT EN VREF PG PROG TIMER GND 6 8 9 10 1 2 3 4 5 D1 SMAJ60A C1 0.1 µF RS 0.01 Ω M1 IRF540NS R6 470 k Ω R5 10 Ω R3 41.2 k Ω R4 8.25 k Ω CT 0.1 µF CO 220 µF R1 324 k Ω R2 13.3 k Ω VI = 48 Vdc VO at 4 A Power Good TPS2490/91 ILIM = 5 A, VON/VOFF = 34.2 V/31.7 V, PLIM = 34 W, Timeout = 16 mS Programmed SOA, 16mS TPS2490 TPS2491 SLVS503 – NOVEMBER 2003 POSITIVE HIGH-VOLTAGE POWER-LIMITING HOTSWAP CONTROLLER FEATURES APPLICATIONS • Server Backplanes • Programmable Power Limiting and Current Limiting for Complete SOA Protection • Storage Area Networks (SAN) • Medical Systems • Wide Operating Range: +9 V to +80 V • Plug-in Modules • Latched Operation (TPS2490) and Automatic • Base Stations Retry (TPS2491) • High-side Drive for Low-RDS(on) External N-channel MOSFET • Programmable Fault Timer to Protect the MOSFET and Eliminate Nuisance Shutdowns • Power Good Open-Drain Output for Down- stream DC/DC Coordination • Enable can be used as a Programmable Undervoltage Lockout or Logic Control • Small, Space-saving 10-pin MSOP Package DESCRIPTION The TPS2490 and TPS2491 are easy-to-use, positive high voltage, 10-pin Hot Swap Power Manager™ devices that safely drive an external N-channel MOSFET switch. The power limit and current limit (both are adjustable and independent of each other) ensure that the external MOSFET operates inside a selected safe operating area (SOA) under the harshest operating conditions. Applications include inrush current limiting, electronic circuit breaker protection, controlled load turn-on, interfacing to down-stream dc-to-dc converters, and power feed protection. These devices are available in a small, space-saving 10-pin MSOP package and significantly reduce the number of external devices, saving precious board space. The TPS2490/91 is supported by application notes, an evaluation module, and a design tool. Typical Application and Corresponding SOA Hot Swap Power Manager is a trademark of Texas Instruments. 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 © 2002–2003, 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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