GENERAL DESCRIPTION

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 temperature

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.

FEATURES

► 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 (ISENSE = 45 A to 150 A)

► 3.2 MHz small-signal bandwidth (ISENSE = 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

► Computers and network servers

► Intel central processing unit (CPU) motherboards

► Network storage

► Communication equipment

► Electric vehicles

► Photovoltaics