TPS2481

更新时间： 2024-09-19 05:52:23

品牌	Logo	应用领域
德州仪器 - TI		装置监视器控制器
页数	文件大小	规格书
52页	1183K
描述
Positive Voltage Intelligent Protection Device Hotswap Controller and I2C Current Monitor

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TPS2481 数据手册

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

FEATURES

DESCRIPTION

•

Programmable FET Power Limit

External N-Channel FET Gate Drive

Programmable Fault Timer

The TPS2480/81 are designed to minimize inrush into

applications and protect both the load and the FET

from over-current or short circuit events. They control

an external N-channel MOSFET switch and provide

accurate voltage, current, and power monitoring using

a configurable 12 bit A/D converter via an I²C

interface. The independently adjustable power limit

and current limit ensure that the external MOSFET

operates within the FET's Safe Operating Area

(SOA).

Open Drain Power Good Output

I²C monitoring of Current, Voltage and Power

High Accuracy Current Monitoring

(1% over temperature)

•

Dynamic Calibration

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

fault indication. An external timer capacitor can set

the fault time to help immunize the system from

nuisance shutdowns during brief transient events.

APPLICATIONS

•

Servers

Hard Drives

Storage Networks

Base Stations

The monitoring circuitry incorporates a high accuracy

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

2 mW

9 V to 20 V

0.01 mF

3.3 V to 5 V

0.01 mF

10 kW

VS VINP VCC SENSE VINM GATE VOUT

10kW

PG 11

SCL

SDA

TPS2480/1

VREF

PROG GND GND A0 A1 TIMER

10 16 20 19

190 kW

33 kW

0.01mF

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.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...52

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与TPS2481相关器件

型号	品牌	获取价格	描述	数据表
TPS2481PW	TI	获取价格	Positive Voltage Intelligent Protection Device Hotswap Controller and I2C Current Monitor
TPS2481PWR	TI	获取价格	Positive Voltage Intelligent Protection Device Hotswap Controller and I2C Current Monitor
TPS2482	TI	获取价格	36-V Hotswap Controller with Precision I2C Power Monitoring
TPS2482PW	TI	获取价格	9-V to 80-V hot swap controller with digital powermonitoring and latch off 20-TSSOP -40 to
TPS2482PWR	TI	获取价格	36-V Hotswap Controller with Precision I2C Power Monitoring
TPS2483	TI	获取价格	具有数字电源监控和自动重试功能的 9V 至 80V 热插拔控制器
TPS2483PW	TI	获取价格	36-V Hotswap Controller with Precision I2C Power Monitoring
TPS2483PWR	TI	获取价格	36-V Hotswap Controller with Precision I2C Power Monitoring
TPS2490	TI	获取价格	POSITIVE HIGH-VOLTAGE POWER-LIMITING HOTSWAP CONTROLLER
TPS2490_07	TI	获取价格	POSITIVE HIGH-VOLTAGE POWER-LIMITING HOTSWAP CONTROLLER

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