INA240A3PWR

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INA240A3PWR

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  • Mfr.부분 #INA240A3PWR
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사양

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
AmplifierType Current Sense
NumberofCircuits 1
SlewRate 2V/µs
-3dbBandwidth 400 kHz
Current-InputBias 90 µA
Voltage-InputOffset 5 µV
Current-Supply 1.8mA
Voltage-SupplySpan(Min) 2.7 V
Voltage-SupplySpan(Max) 5.5 V
OperatingTemperature -40°C ~ 125°C
MountingType Surface Mount
Package/Case 8-TSSOP (0.173, 4.40mm Width)

개요

Description

The INA240A3PWR is a high-precision, current-sense amplifier designed by Texas Instruments. It is part of the INA240 series, which is notable for its ability to handle high common-mode voltages up to 80V and provide accurate measurements in challenging environments. This specific model, the A3 variant, offers a gain of 50 V/V, making it suitable for applications requiring precise current monitoring.
Key features of the INA240A3PWR include its enhanced PWM rejection, allowing it to filter out high-frequency noise common in switching applications. The device operates with a supply voltage ranging from 2.7V to 5.5V and supports both unidirectional and bidirectional current sensing. Its accuracy is ensured by a low offset voltage and a low offset drift over temperature.
This amplifier is typically used in a wide range of applications, including motor control, overcurrent protection, and battery management systems. The INA240A3PWR comes in a 14-pin TSSOP package, which offers a compact solution for circuit designs. Its ability to provide robust performance in high-noise environments makes it a versatile component for engineers focusing on precision current measurement.

Features

The INA240A3PWR is a high-precision current sense amplifier from Texas Instruments. It is designed to handle high-voltage applications and is optimized for low-side and high-side current sensing. Key features of the INA240A3PWR include:
1. High Common-Mode Voltage Range: It supports a common-mode voltage range from –4V to +80V, making it suitable for a variety of applications.
2. Enhanced PWM Rejection: The device provides excellent rejection of pulse-width modulation (PWM) inputs, making it ideal for use in motor drive systems.
3. Accuracy: It offers high accuracy with a low offset voltage and a gain error of 0.2%.
4. Gain Options: The INA240A3PWR is available with a gain of 100 V/V, which is suitable for precise current measurements.
5. Wide Operating Temperature Range: It operates across a temperature range from –40°C to +125°C, allowing for use in demanding environments.
6. Low Input Offset: It features a low input offset voltage, which enhances measurement precision.
These features make the INA240A3PWR ideal for applications involving motor control, power management, and other systems requiring accurate current monitoring.

Package

The INA240A3PWR is a current sense amplifier from Texas Instruments, packaged in a TSSOP-8 (Thin Shrink Small Outline Package with 8 pins) form factor. This package is designed for space-efficient, surface-mount applications.

Pinout

The INA240A3PWR is a precision current sense amplifier manufactured by Texas Instruments. It comes in a TSSOP-8 package, which means it has 8 pins. Here's a brief overview of its pin functions:
1. IN+: Non-inverting input. Connect to the positive side of the shunt resistor.
2. IN-: Inverting input. Connect to the negative side of the shunt resistor.
3. REF1: Reference voltage input 1. Used to set the output voltage reference level.
4. REF2: Reference voltage input 2. Can be connected with REF1 for certain configurations.
5. VS: Power supply voltage input.
6. OUT: Output voltage. Represents the amplified differential input voltage.
7. GND: Ground. Connect to the system ground.
8. NC: No connection.
The INA240A3PWR is designed for current sensing applications and features enhanced PWM rejection, making it suitable for environments with high-frequency signals.

Manufacturer

The INA240A3PWR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a wide range of electronic components, including integrated circuits (ICs) for various applications. TI is known for its innovation in analog and embedded processing technologies, serving industries such as automotive, industrial, personal electronics, communications, and enterprise systems. The company is headquartered in Dallas, Texas, and is recognized as one of the largest and most influential players in the semiconductor industry.

Application

The INA240A3PWR is a precision current-sense amplifier used in various applications including motor control, battery management systems, power supplies, solar inverters, and automotive systems. Its high accuracy and ability to handle bidirectional current sensing make it suitable for monitoring and controlling current flow in these systems, enhancing performance and efficiency.

Equivalent

The INA240A3PWR is a high-precision, bi-directional current sense amplifier from Texas Instruments. Equivalent products from other manufacturers include:
1. MAX44284 from Maxim Integrated: Similar precision and features for current sensing applications.
2. AD8418A from Analog Devices: Offers similar performance characteristics.
3. LT6106 from Analog Devices/Linear Technology: Another alternative for current sensing.
These alternatives have comparable specifications but always verify specific requirements for compatibility.

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