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TPS2480PWR Datasheet(PDF) 1 Page - Texas Instruments |
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TPS2480PWR Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 54 page  2 1 6 7 4 17 15 14 10 kW 18 13 12 8 10 16 20 19 9 0.01mF PROG GND GND A0 A1 TIMER VREF EN SDA SCL VS VINP VCC SENSE VINM GATE VOUT 2 mW 11 PG 10 kW 10kW 190 kW 33 kW 0.01 mF 0.01 mF 9 V to 20 V 3.3 V to 5 V TPS2480/1 TPS2480 TPS2481 www.ti.com SLUS939A – APRIL 2010 – REVISED JUNE 2010 Positive Voltage Intelligent Protection Device Hotswap Controller and I2C Current Monitor Check for Samples: TPS2480, TPS2481 1 FEATURES DESCRIPTION • Programmable FET Power Limit The TPS2480/81 are designed to minimize inrush into applications and protect both the load and the FET • External N-Channel FET Gate Drive from over-current or short circuit events. They control • Programmable Fault Timer an external N-channel MOSFET switch and provide • Open Drain Power Good Output accurate voltage, current, and power monitoring using • I2C monitoring of Current, Voltage and Power a configurable 12 bit A/D converter via an I2C interface. The independently adjustable power limit • High Accuracy Current Monitoring and current limit ensure that the external MOSFET (1% over temperature) operates within the FET's Safe Operating Area • Dynamic Calibration (SOA). • 9-V to 20-V Input Range The flexible design includes a Power Good output which can be used for sequencing as well as load APPLICATIONS fault indication. An external timer capacitor can set • Servers the fault time to help immunize the system from nuisance shutdowns during brief transient events. • Hard Drives • Storage Networks The monitoring circuitry incorporates a high accuracy • Base Stations A/D converter which can be configured from a 9 to 13 bit converter. The internal gain of the A/D can be configured to scale the current, voltage and power readings to the needs of the application. An additional multiplying register calculates power in Watts. The I2C interface uses multi-level addressing to allow up to 16 programmable addresses. Functional Block Diagram 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 © 2010, 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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