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Amplificadores de detección de corriente
Amplificadores analógicos de detección de corriente con resistencia de derivación integrada

INA250-Q1

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Amplificador AEC-Q100 de detección de corriente bidireccional de precisión y 36 V con resistencia de

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INA250-Q1

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Detalles del producto

Common-mode voltage (max) (V) 36 Common-mode voltage (min) (V) 0 Input offset (±) (max) (µV) 20000, 30000, 50000, 100000 Gain error (%) 0.75 Gain error drift (±) (max) (ppm/°C) 45 CMRR (min) (dB) 100 Bandwidth (kHz) 11, 35, 50 Supply voltage (max) (V) 36 Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.35 Features Bidirectional, Integrated Shunt, Low-side Capable Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
Common-mode voltage (max) (V) 36 Common-mode voltage (min) (V) 0 Input offset (±) (max) (µV) 20000, 30000, 50000, 100000 Gain error (%) 0.75 Gain error drift (±) (max) (ppm/°C) 45 CMRR (min) (dB) 100 Bandwidth (kHz) 11, 35, 50 Supply voltage (max) (V) 36 Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.35 Features Bidirectional, Integrated Shunt, Low-side Capable Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
TSSOP (PW) 16 32 mm² 5 x 6.4
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • Functional Safety-Capable
  • Precision Integrated Shunt Resistor:
    • Shunt Resistor: 2-mΩ
    • Shunt Resistor Tolerance: 0.1% (Maximum)
    • 15 A Continuous from –40°C to +85°C
    • 0°C to +125°C Temperature Coefficient: 10 ppm/°C
  • High Accuracy:
    • Gain Error (Shunt and Amplifier): 0.3% (Maximum)
    • Offset Current: 50 mA (Maximum, INA250A2-Q1)
  • Four Available Gains:
    • INA250A1-Q1: 200 mV/A
    • INA250A2-Q1: 500 mV/A
    • INA250A3-Q1: 800 mV/A
    • INA250A4-Q1: 2 V/A
  • Wide Common-Mode Range: –0.1 V to 36 V
  • Specified Operating Temperature: –40°C to +125°C
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • Functional Safety-Capable
  • Precision Integrated Shunt Resistor:
    • Shunt Resistor: 2-mΩ
    • Shunt Resistor Tolerance: 0.1% (Maximum)
    • 15 A Continuous from –40°C to +85°C
    • 0°C to +125°C Temperature Coefficient: 10 ppm/°C
  • High Accuracy:
    • Gain Error (Shunt and Amplifier): 0.3% (Maximum)
    • Offset Current: 50 mA (Maximum, INA250A2-Q1)
  • Four Available Gains:
    • INA250A1-Q1: 200 mV/A
    • INA250A2-Q1: 500 mV/A
    • INA250A3-Q1: 800 mV/A
    • INA250A4-Q1: 2 V/A
  • Wide Common-Mode Range: –0.1 V to 36 V
  • Specified Operating Temperature: –40°C to +125°C

The automotive qualified INA250-Q1 is a voltage-output, current-sensing amplifier family that integrates an internal precision shunt resistor to enable high-accuracy current measurements at common-mode voltages that may vary from 0 V to 36 V, independent of the supply voltage.

The INA250-Q1 family is available in four output voltage scales: 200 mV/A, 500 mV/A, 800 mV/A, and 2 V/A. This device is fully tested and specified for continuous currents up to 10 amps at the maximum temperature of +125°C. The INA250-Q1 device operates from a single 2.7-V to 36-V supply and draws a maximum of 300 µA of supply current. All INA250-Q1 gain versions are specified over the extended operating temperature range of –40°C to +125°C, and are available in a TSSOP-16 package.

The automotive qualified INA250-Q1 is a voltage-output, current-sensing amplifier family that integrates an internal precision shunt resistor to enable high-accuracy current measurements at common-mode voltages that may vary from 0 V to 36 V, independent of the supply voltage.

The INA250-Q1 family is available in four output voltage scales: 200 mV/A, 500 mV/A, 800 mV/A, and 2 V/A. This device is fully tested and specified for continuous currents up to 10 amps at the maximum temperature of +125°C. The INA250-Q1 device operates from a single 2.7-V to 36-V supply and draws a maximum of 300 µA of supply current. All INA250-Q1 gain versions are specified over the extended operating temperature range of –40°C to +125°C, and are available in a TSSOP-16 package.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet INA250-Q1 AEC-Q100, 36-V, Bidirectional, Precision Current Sense Amplifier With Integrated Shunt Resistor datasheet (Rev. C) PDF | HTML 13 sep 2023
Application note Risks and Prevention of ESD, EOS, and Latch Up Events for Current Sense Amplifiers PDF | HTML 18 nov 2024
Application brief Integrating the Current Sensing Resistor (Rev. D) PDF | HTML 07 abr 2023
Functional safety information INA250-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA 23 mar 2020
Application brief Precision, Low-Side Current Measurement (Rev. B) 06 mar 2019
Application brief Benefits of Intergated Low Inductive Shunt for PWM Applications 17 jun 2017
Design guide 30-A Range Bidirectional Current Shunt Monitor Design Guide 30 jun 2015

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.

Placa de evaluación

INA250EVM — Módulo de evaluación INA250 de monitor de derivación de corriente

INA250 is a family of current shunt monitor with integrated shunt. The INA250EVM (INA250AxEVM) is intended to provide basic functional evaluation of INA250A1, INA250A2, INA250A3 and INA250A4 devices in the family. The fixture layout is not intended to be a model for the target circuit, nor is it (...)

Guía del usuario: PDF
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Modelo de simulación

INA250 TINA-TI Reference Design

SBOM964.TSC (612 KB) - TINA-TI Reference Design
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Modelo de simulación

INA250 TINA-TI Spice Model

SBOM963.ZIP (33 KB) - TINA-TI Spice Model
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Modelo de simulación

INA250A1 PSpice Model

SBOMBC7.ZIP (23 KB) - PSpice Model
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Modelo de simulación

INA250A2 PSpice Model

SBOMBF7.ZIP (24 KB) - PSpice Model
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Modelo de simulación

INA250A3 PSpice Model

SBOMBF5.ZIP (24 KB) - PSpice Model
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Modelo de simulación

INA250A4 PSpice Model

SBOMBC3.ZIP (24 KB) - PSpice Model
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Herramienta de cálculo

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

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Herramienta de cálculo

CS-AMPLIFIER-ERROR-TOOL — Current Sense Amplifier Comparison and Error Tool

This Excel calculator provides a comparison between two and five of our standard current sense amplifiers, delivering a chart containing the basic parameters of each device. This calculator also takes system condition inputs from users such as common-mode voltage, supply voltage, shunt resistor (...)
Productos y hardware compatibles

Productos y hardware compatibles
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Herramienta de simulación

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® para TI es un entorno de diseño y simulación que ayuda a evaluar la funcionalidad de los circuitos analógicos. Esta completa suite de diseño y simulación utiliza un motor de análisis analógico de Cadence®. Disponible sin ningún costo, PSpice para TI incluye una de las bibliotecas de modelos (...)
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Herramienta de simulación

TINA-TI — Programa de simulación analógica basado en SPICE

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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Diseños de referencia

TIDA-00302 — Diseño de referencia del monitor de derivación de corriente con solidez transitoria

This high-side current shunt monitor is used to measure the voltage developed across a current-sensing resistor when current passes through it.

Additionally, an external protection circuit is implemented to provide surge and fast-transient protection and demonstrate the different immunity levels to (...)

Design guide: PDF
Esquema: PDF
Diseños de referencia

TIDA-00614 — Diseño de referencia de monitor de derivación de corriente bidireccional de rango de 30 A

This verified design can accurately measure current across a range of 30 A on a bus that carries up to 36-V common mode voltage over a range of -40°C to +85°C.  This design can measure current from 0 A to 30 A with a grounded reference or -30 A to 0 A with a 16-V reference.  The (...)
Design guide: PDF
Esquema: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
TSSOP (PW) 16 Ultra Librarian
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Pedidos y calidad

Información incluida:
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  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL)/reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

Soporte y capacitación

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