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INA253-Q1

ACTIVO

Amplificador AEC-Q100 de detección de corriente bidireccional de precisión y 80 V con rechazo PWM y

Detalles del producto

Common-mode voltage (max) (V) 80 Common-mode voltage (min) (V) -4 Gain error (%) 0.4 Gain error drift (±) (max) (ppm/°C) 45 CMRR (min) (dB) 120 Bandwidth (kHz) 350 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.7 Iq (max) (mA) 2.6 Features Bidirectional, Enhanced PWM Rejection, 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) 80 Common-mode voltage (min) (V) -4 Gain error (%) 0.4 Gain error drift (±) (max) (ppm/°C) 45 CMRR (min) (dB) 120 Bandwidth (kHz) 350 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.7 Iq (max) (mA) 2.6 Features Bidirectional, Enhanced PWM Rejection, Integrated Shunt, Low-side Capable Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
TSSOP (PW) 20 41.6 mm² 6.5 x 6.4
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40 °C to +125 °C, TA
  • Functional Safety-Capable
  • Precision integrated shunt resistor
    • Shunt resistor: 2 mΩ
    • Shunt inductance: 3 nH
    • 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 bandwidth: 350 kHz
  • Enhanced PWM rejection
  • Excellent CMRR
    • > 120-dB DC CMRR
    • 90-dB AC CMRR at 50 kHz
  • Accuracy:
    • Gain:
      • Gain error: 0.4% (maximum)
      • Gain drift: 45 ppm/°C (maximum)
    • Offset:
      • Offset current: ±15 mA (maximum)
      • Offset drift: 125 µA/°C (maximum)
  • Wide common-mode range: –4 V to +80 V
  • Available gains: 100 mV/A, 200 mV/A, and 400 mV/A
  • Quiescent current: 2.4 mA (maximum)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40 °C to +125 °C, TA
  • Functional Safety-Capable
  • Precision integrated shunt resistor
    • Shunt resistor: 2 mΩ
    • Shunt inductance: 3 nH
    • 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 bandwidth: 350 kHz
  • Enhanced PWM rejection
  • Excellent CMRR
    • > 120-dB DC CMRR
    • 90-dB AC CMRR at 50 kHz
  • Accuracy:
    • Gain:
      • Gain error: 0.4% (maximum)
      • Gain drift: 45 ppm/°C (maximum)
    • Offset:
      • Offset current: ±15 mA (maximum)
      • Offset drift: 125 µA/°C (maximum)
  • Wide common-mode range: –4 V to +80 V
  • Available gains: 100 mV/A, 200 mV/A, and 400 mV/A
  • Quiescent current: 2.4 mA (maximum)

The INA253-Q1 is an automotive, voltage-output, current sense amplifier with an integrated shunt resistor of 2 mΩ. The INA253-Q1 monitors bidirectional currents over a wide common-mode range from –4 V to +80 V, independent of the supply voltage. Three fixed gains are available: 100 mV/A, 200 mV/A, and 400 mV/A. The integration of the precision resistor with a zero-drift chopped amplifier provides calibration-equivalent measurement accuracy, ultra-low temperature-drift performance of 15 ppm/ °C, and an optimized Kelvin layout for the sensing resistor.

The INA253-Q1 is designed with enhanced PWM rejection circuitry to suppress large (dv/dt) signals that enable real-time continuous current measurements. The measurements are critical for in-line current measurements in a motor-drive application, and for solenoid valve-control applications.

This device operates from a single 2.7-V to 5.5-V power supply, drawing a maximum of 3 mA of supply current. All gain versions are specified over the operating temperature range of –40 °C to +125 °C, and are available in a 20-pin TSSOP package.

The INA253-Q1 is an automotive, voltage-output, current sense amplifier with an integrated shunt resistor of 2 mΩ. The INA253-Q1 monitors bidirectional currents over a wide common-mode range from –4 V to +80 V, independent of the supply voltage. Three fixed gains are available: 100 mV/A, 200 mV/A, and 400 mV/A. The integration of the precision resistor with a zero-drift chopped amplifier provides calibration-equivalent measurement accuracy, ultra-low temperature-drift performance of 15 ppm/ °C, and an optimized Kelvin layout for the sensing resistor.

The INA253-Q1 is designed with enhanced PWM rejection circuitry to suppress large (dv/dt) signals that enable real-time continuous current measurements. The measurements are critical for in-line current measurements in a motor-drive application, and for solenoid valve-control applications.

This device operates from a single 2.7-V to 5.5-V power supply, drawing a maximum of 3 mA of supply current. All gain versions are specified over the operating temperature range of –40 °C to +125 °C, and are available in a 20-pin TSSOP package.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet INA253-Q1 AEC-Q100, 80-V, Bidirectional, Precision Current Sense Amplifier With PWM Rejection and Integrated Shunt Resistor datasheet (Rev. A) PDF | HTML 08 ene 2020
Application note Risks and Prevention of ESD, EOS, and Latch Up Events for Current Sense Amplifiers PDF | HTML 18 nov 2024
Application brief Current Mode Control in Switching Power Supplies (Rev. E) PDF | HTML 12 abr 2023
Application brief Current Sensing in an H-Bridge (Rev. D) PDF | HTML 07 abr 2023
Application brief Integrating the Current Sensing Resistor (Rev. D) PDF | HTML 07 abr 2023
Application brief Low-Drift, Precision, In-Line Motor Current Measurements With PWM Rejection (Rev. D) PDF | HTML 07 abr 2023
Application brief Switching Power Supply Current Measurements (Rev. E) PDF | HTML 07 abr 2023
Application brief High-Side Drive, High-Side Solenoid Monitor With PWM Rejection (Rev. D) PDF | HTML 15 ago 2022
Functional safety information INA253-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 25 ene 2021
Technical article Current-sensing dynamics in automotive solenoids PDF | HTML 01 nov 2019
Application brief Benefits of Intergated Low Inductive Shunt for PWM Applications 17 jun 2017

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

INA253EVM — Módulo de evaluación INA253 de detección de corriente con acceso fácil a las pruebas

El INA253EVM consta de una PCB con la opción de recortar tres PCB individuales.  Cada recorte de PCB consta del dispositivo INA253Ax (donde Ax es A1, A2 y A3 para las placas uno a tres), así como puntos de prueba para conexiones de hardware externo.
Guía del usuario: PDF
Modelo de simulación

INA253 TINA-TI Reference Design

SLOM452.TSC (453 KB) - TINA-TI Reference Design
Modelo de simulación

INA253 TINA-TI Spice Model

SLOM451.ZIP (24 KB) - TINA-TI Spice Model
Modelo de simulación

INA253A1 PSpice Model

SLOM499.ZIP (23 KB) - PSpice Model
Modelo de simulación

INA253A2 PSpice Model

SLOM496.ZIP (23 KB) - PSpice Model
Modelo de simulación

INA253A3 PSpice Model

SLOM492.ZIP (23 KB) - PSpice Model
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 (...)

Productos y hardware compatibles

Productos y hardware compatibles

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

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 (...)
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 (...)
Guía del usuario: PDF
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-020023 — Diseño de referencia de accionamiento de solenoide proporcional para automoción con sensor de corrie

Este diseño de referencia demuestra el accionamiento de solenoide proporcional preciso mediante un comparador de salida de pulsación-tracción simple y un monitor de derivación de corriente integrado de alta precisión. Un control preciso y exacto de los solenoides proporcionales es especialmente (...)
Design guide: PDF
Esquema: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
TSSOP (PW) 20 Ultra Librarian

Pedidos y calidad

Información incluida:
  • RoHS
  • 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

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

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