Datasheet > LT9890

LT9890

更新时间： 2024-11-22 15:19:43

品牌	Logo	应用领域
亚德诺 - ADI		监控
页数	文件大小	规格书
11页	541K
描述
适用于Intel Psys应用的150 A电流监控器

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LT9890 数据手册

Data Sheet

LT9890

150 A Current Monitor for Intel Psys Applications

FEATURES

FUNCTIONAL BLOCK DIAGRAM

► Integrated current sense element

► 150 A current range

► 26,600:1 input-to-output current ratio (5 mA at 133 A)

► ±1.3% TUE maximum (I_SENSE= 45 A to 150 A)

► 3.2 MHz small-signal bandwidth (I_SENSE= 150 A)

► 150 μΩ current path resistance

► Powered from 2.7 V to 65 V

► Intel Psys compatible

► Available in 108-terminal, 10 mm × 20 mm × 2.75 mm, LGA

package

APPLICATIONS

Figure 2. Functional Block Diagram (R_SIs the Sense Resistor, and R_GIs the

Gain Resistor.)

► Computers and network servers

► Intel central processing unit (CPU) motherboards

► Network storage

GENERAL DESCRIPTION

► Communication equipment

► Electric vehicles

► Photovoltaics

The LT9890 is a high-precision current monitor with an internal

current-sense element supporting up to 150 A of load current.

Factory calibration of the current-sense element and a zero tem-

perature coefficient architecture results in less than 1.3% total

unadjusted error (TUE). A 26,600:1 input-to-output current ratio with

a response bandwidth greater than 3 MHz provides a fast and

accurate ground-referenced output signal while being insensitive to

ground voltage variations. Minimal power loss is achieved through a

low, 150 μΩ current-path resistance and an aspect ratio conducive

to wide printed circuit board (PCB) traces. Input voltages from 2.7 V

to 65 V are supported. The LT9890 is compatible with the Intel Psys

(platform power) applications.

TYPICAL APPLICATION CIRCUIT

Figure 1. Typical Application Circuit

Figure 3. Output Current (I_OUT) TUE vs. I_IN

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable "as is". However, no responsibility is assumed by Analog

Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to

change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and

registered trademarks are the property of their respective owners.

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