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INA302-Q1

Part Number	INA302-Q1
Manufacturer	Texas Instruments
Description	High-Precision Current Sense Amplifier
Published	Jul 3, 2023
Detailed Description	INA302-Q1, INA303-Q1 SBOS977A – MARCH 2019 – REVISED MAY 2021 INA30x-Q1 AEC-Q100, 36-V, Bidirectional, 550-kHz, 4V/µs, H...
Datasheet	INA302-Q1 PDF File

Overview

INA302-Q1, INA303-Q1 SBOS977A – MARCH 2019 – REVISED MAY 2021 INA30x-Q1 AEC-Q100, 36-V, Bidirectional, 550-kHz, 4V/µs, High-Precision Current Sense Amplifier With Dual Window Comparator 1 Features • AEC-Q100 qualified for automotive applications – Temperature grade 1: –40°C ≤ TA ≤ +125°C – HBM ESD classification level 2 – CDM ESD classification level C6 • Functional Safety-Capable – Documentation available to aid functional safety system design • Wide common-mode input range: –0.
1 V to +36 V • Dual comparator outputs: – INA302-Q1: Two independent overlimit alerts – INA303-Q1: Window comparator – Threshold levels set individually – Comparator 1 alert response: 1 µs – Comparator 2 adjustable delay: 2 µs to 10 s – Open-drain outputs with independent latch control modes • High accuracy amplifier: – Offset voltage: 30 µV (max, A3 version) – Offset voltage drift: 0.
5 µV/°C (max) – Gain error: 0.
15% (max, A3 version) – Gain error drift: 10 ppm/°C • Available amplifier gains: – INA302A1-Q1, INA303A1-Q1: 20 V/V – INA302A2-Q1, INA303A2-Q1: 50 V/V – INA302A3-Q1, INA303A3-Q1: 100 V/V 2 Applications • System fault detection • Motor control and protection • Pump control and protection • DC/DC converters • Body control module 3 Description The INA302-Q1 and INA303-Q1 (INA30x-Q1) devices feature a high common-mode, bidirectional, currentsensing amplifier and two high-speed comparators to detect out-of-range current conditions.
The INA302Q1 comparators are configured to detect and respond to overcurrent conditions.
The INA303Q1 comparators are configured to respond to both overcurrent and undercurrent conditions in a windowed configuration.
These devices feature an adjustable limit threshold range for each comparator set using an external limit-setting resistor.
These current-shunt monitors can measure differential voltage signals on common-mode voltages that can vary from –0.
1 V up to +36 V, independent of the supply.
In addition, these devices will survive with common-mode volt...

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INA302-Q1 High-Precision Current Sense Amplifier - Texas Instruments

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