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INA301-Q1

ACTIVO

Amplificador AEC-Q100 de detección de corriente de 36 V, 550 kHz, 4 V/µs y alta precisión con compar

Detalles del producto

Product type Analog output with integrated comparator Common-mode voltage (max) (V) 36 Common-mode voltage (min) (V) 0 Input offset (±) (max) (µV) 35, 50, 125 Input offset drift (±) (typ) (µV/°C) 0.1 Features Alert Function, High precision, Low-side Capable Rating Automotive Voltage gain (V/V) 20, 50, 100 CMRR (min) (dB) 100 Bandwidth (kHz) 450, 500, 550 Iq (max) (mA) 0.7 Number of channels 1 Comparators (#) 1 Gain error (%) 0.1, 0.15, 0.2 Gain error drift (±) (max) (ppm/°C) 10 Slew rate (V/µs) 4 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
Product type Analog output with integrated comparator Common-mode voltage (max) (V) 36 Common-mode voltage (min) (V) 0 Input offset (±) (max) (µV) 35, 50, 125 Input offset drift (±) (typ) (µV/°C) 0.1 Features Alert Function, High precision, Low-side Capable Rating Automotive Voltage gain (V/V) 20, 50, 100 CMRR (min) (dB) 100 Bandwidth (kHz) 450, 500, 550 Iq (max) (mA) 0.7 Number of channels 1 Comparators (#) 1 Gain error (%) 0.1, 0.15, 0.2 Gain error drift (±) (max) (ppm/°C) 10 Slew rate (V/µs) 4 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm)
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C6
  • Functional Safety-Capable
  • Wide common-mode input range: 0 V to 36 V
  • Dual output: amplifier and comparator output
  • High accuracy amplifier:
    • Offset voltage: 35 µV (maximum)
    • Offset voltage drift: 0.5 µV/°C (maximum)
    • Gain error: 0.1% (maximum)
    • Gain error drift: 10 ppm/°C
  • Available amplifier gains:
    • INA301A1-Q1: 20 V/V
    • INA301A2-Q1: 50 V/V
    • INA301A3-Q1: 100 V/V
  • Programmable alert threshold set through a single resistor
  • Total alert response time: 1 µs
  • Open-drain output with both transparent and latching modes
  • Package: VSSOP-8
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C6
  • Functional Safety-Capable
  • Wide common-mode input range: 0 V to 36 V
  • Dual output: amplifier and comparator output
  • High accuracy amplifier:
    • Offset voltage: 35 µV (maximum)
    • Offset voltage drift: 0.5 µV/°C (maximum)
    • Gain error: 0.1% (maximum)
    • Gain error drift: 10 ppm/°C
  • Available amplifier gains:
    • INA301A1-Q1: 20 V/V
    • INA301A2-Q1: 50 V/V
    • INA301A3-Q1: 100 V/V
  • Programmable alert threshold set through a single resistor
  • Total alert response time: 1 µs
  • Open-drain output with both transparent and latching modes
  • Package: VSSOP-8

The INA301-Q1 includes both a high common-mode, current-sensing amplifier and a high-speed comparator configured to provide overcurrent protection by measuring the voltage developed across a current-sensing or current-shunt resistor and comparing that voltage to a defined threshold limit. This device features an adjustable limit-threshold range that is set using a single external limit-setting resistor. This current-shunt monitor measures differential voltage signals on common-mode voltages that can vary from 0 V up to 36 V, independent of the supply voltage.

The open-drain alert output 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 under 1 µs, allowing 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 of –40°C to +125°C, and is available in an 8-pin VSSOP package.

The INA301-Q1 includes both a high common-mode, current-sensing amplifier and a high-speed comparator configured to provide overcurrent protection by measuring the voltage developed across a current-sensing or current-shunt resistor and comparing that voltage to a defined threshold limit. This device features an adjustable limit-threshold range that is set using a single external limit-setting resistor. This current-shunt monitor measures differential voltage signals on common-mode voltages that can vary from 0 V up to 36 V, independent of the supply voltage.

The open-drain alert output 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 under 1 µs, allowing 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 of –40°C to +125°C, and is available in an 8-pin VSSOP package.

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INA303-Q1 ACTIVO Amplificador AEC-Q100 de detección de corriente bidireccional de 36 V, 550 kHz, 4 V/µs y alta precis The INA303-Q1 has window comparotor functionality
INA381-Q1 ACTIVO Amplificador AEC-Q100 de detección de corriente de 26 V y 350 kHz con comparador de sobrecorriente i The INA381-Q1 has similar functionality with lower perfomance at a lower price.

Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos INA301-Q1 36-V, Automotive, High-Speed, Zero-Drift, Voltage-Output Current-Shunt Monitor With High-Speed, Overcurrent Protection Comparator datasheet (Rev. B) PDF | HTML 1/04/2022
Nota sobre la aplicación Using a PCB Copper Trace as a Current Sense Shunt Resistor (Rev. A) PDF | HTML 27/04/2026
Nota sobre la aplicación Risks and Prevention of ESD, EOS, and Latch Up Events for Current Sense Amplifiers PDF | HTML 18/11/2024
Application brief Integrating the Current Sensing Resistor (Rev. D) PDF | HTML 7/04/2023
Application brief Precision Current Measurements on High-Voltage Power-Supply Rails (Rev. F) PDF | HTML 17/10/2022
Application brief Measuring Current To Detect Out-of-Range Conditions (Rev. D) PDF | HTML 10/03/2022
Información sobre seguridad funcional INA301-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 11/10/2021
Application brief Measuring Current for Handle Multiple Out-of-Range Conditions (Rev. C) PDF | HTML 4/10/2021
Application brief Integrating the Current Sensing Signal Path (Rev. B) PDF | HTML 29/09/2021
Guía de selección Current Sense Amplifiers (Rev. E) 20/09/2021
Application brief High-Side Motor Current Monitoring for Over-Current Protection (Rev. B) PDF | HTML 23/02/2021
Artículo técnico Use fast, precise overcurrent detection to enable diagnostics in automotive safety PDF | HTML 24/06/2019
Application brief Bidirectional, Low-Side Phase Current Sensing With Onboard Overcurrent Detection (Rev. D) 6/03/2019
Application brief External current sense amps vs integrated onboard amplifiers for current sensing (Rev. B) 19/02/2019
Circuit design Overcurrent event detection circuit 31/07/2018
Application brief Low-Drift, Low-Side Current Measurements for Three-Phase Systems (Rev. B) 5/09/2017
Informe Overcurrent protection enables more efficient and reliable systems 16/05/2016

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

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