Texas Instruments INA301A3IDGKT

Description
The INA301 includes both a high common-mode current-sensing amplifier as well as a high-speed precision comparator configured to detect overcurrent conditions through measuring the voltage developed across a current-sensing or shunt resistor. This current shunt monitor can measure this differential voltage signal on common-mode voltages that can vary from 0 V up to 36 V, independent of the supply voltage. The device features an adjustable threshold range that is set using a single external limit-setting resistor.
An open-drain alert output on the device can be configured to operate in either a transparent mode where the output status follows the input state or in a latched mode where the alert output is cleared when the latch is reset. The device alert response time is issued in under 1 us to allow for quick detection of overcurrent events.
This device operates from a single 2.7-V to 5.5-V supply, drawing a maximum supply current of 700 μA. The device is specified over the extended operating temperature range (-40°C to 125°C), and is available in an MSOP-8 package.

Features
Wide Common-Mode Input Range: 0 V to 36 V
Dual Output: Amplifier and Comparator Output
High Accuracy Amplifier:
Offset Voltage: 100 μV
Offset Voltage Drift: 0.5 μV/°C
Gain Error: 0.15%
Gain Error Drift: 10 ppm/°C
Available Amplifier Gains:
INA301A1: 20 V/V
INA301A2: 50 V/V
INA301A3: 100 V/V
Programmable Threshold Set Through a Single Resistor
Total Alert Response Time: 1 μs
Open-Drain Output With Latching Mode
Package: MSOP-8

Applications
Overcurrent Protection
Power-Supply Protection
Circuit Breakers
Computers and Servers
Telecom Equipment
Battery Management