Overview
The INA138QPWRQ1, manufactured by Texas Instruments, is a high-side current sense amplifier designed for precision current measurement in automotive and industrial applications. This component is part of Texas Instruments' automotive-qualified product line, ensuring reliability and performance under stringent conditions. The INA138QPWRQ1 is particularly suited for systems requiring accurate current monitoring, such as battery management, motor control, and power supply monitoring.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 2.7 to 18 | V | Wide operating range |
| Input Common-Mode Voltage | -0.3 to 26 | V | High-side sensing capability |
| Quiescent Current | 60 | µA | Low power consumption |
| Gain | 1 | V/V | Fixed gain |
| Operating Temperature | -40 to 125 | °C | Automotive temperature range |
| Package | TSSOP-8 | - | Compact form factor |
Key Features
- High accuracy current sensing with low offset voltage
- Wide input common-mode voltage range for versatile applications
- Low quiescent current for energy-efficient operation
- Automotive qualification ensures reliability in harsh environments
- Compact TSSOP-8 package for space-constrained designs
Applications
The INA138QPWRQ1 is widely used in automotive systems such as battery management systems (BMS), electric vehicle (EV) powertrains, and motor control units. In industrial applications, it is employed in power supply monitoring, load management, and precision current measurement systems. Its robust design and high accuracy make it a preferred choice for engineers working on safety-critical and high-performance systems.
Q & A
What is the operating voltage range of the INA138QPWRQ1?
The INA138QPWRQ1 operates from 2.7V to 18V, making it suitable for a wide range of applications.
Can the INA138QPWRQ1 be used in automotive applications?
Yes, the INA138QPWRQ1 is automotive-qualified and designed for use in automotive systems.
What is the gain of the INA138QPWRQ1?
The INA138QPWRQ1 has a fixed gain of 1 V/V.
What is the quiescent current of the INA138QPWRQ1?
The quiescent current is typically 60 µA, ensuring low power consumption.
What is the input common-mode voltage range?
The input common-mode voltage range is -0.3V to 26V, enabling high-side current sensing.
What package does the INA138QPWRQ1 come in?
The INA138QPWRQ1 is available in a TSSOP-8 package.
Is the INA138QPWRQ1 suitable for high-temperature environments?
Yes, it operates in a temperature range of -40°C to 125°C, making it suitable for harsh environments.
What are the typical applications of the INA138QPWRQ1?
Typical applications include battery management, motor control, and power supply monitoring.
Does the INA138QPWRQ1 require external components for operation?
It requires minimal external components, simplifying the design process.
Is the INA138QPWRQ1 RoHS compliant?
Yes, the INA138QPWRQ1 is RoHS compliant, adhering to environmental standards.
