Overview
The INA281A2QDBVRQ1 is a high-precision current sense amplifier manufactured by Texas Instruments. Designed for automotive and industrial applications, this component provides accurate current measurement with a wide common-mode voltage range. It is part of the INA281 family, which is known for its robust performance in harsh environments. The device is particularly suitable for battery management systems, motor control, and power monitoring applications. Its AEC-Q100 qualification ensures reliability in automotive systems.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 2.7 to 5.5 | V | |
| Common-Mode Voltage Range | -16 to 80 | V | |
| Gain | 20 | V/V | Fixed |
| Bandwidth | 350 | kHz | |
| Quiescent Current | 475 | µA | |
| Operating Temperature Range | -40 to 125 | °C | |
| Package | SOT-23-6 | ||
| AEC-Q100 Qualified | Yes | Grade 1 |
Key Features
- High accuracy current sensing with a fixed gain of 20 V/V.
- Wide common-mode voltage range from -16 V to 80 V, suitable for automotive and industrial applications.
- Low quiescent current of 475 µA, ensuring energy efficiency.
- AEC-Q100 qualified for automotive reliability and durability.
- Compact SOT-23-6 package for space-constrained designs.
Applications
The INA281A2QDBVRQ1 is widely used in various applications, including:
- Battery Management Systems (BMS): Accurate current monitoring for battery health and safety.
- Motor Control: Precise current sensing for motor drivers and inverters.
- Power Monitoring: Real-time current measurement in power supplies and converters.
- Automotive Systems: Reliable performance in automotive electronics, such as electric vehicles (EVs) and hybrid electric vehicles (HEVs).
Q & A
1. What is the gain of the INA281A2QDBVRQ1?
The gain is fixed at 20 V/V.
2. Is the INA281A2QDBVRQ1 suitable for automotive applications?
Yes, it is AEC-Q100 qualified, making it ideal for automotive systems.
3. What is the operating temperature range?
The device operates from -40°C to 125°C.
4. What is the supply voltage range?
The supply voltage ranges from 2.7 V to 5.5 V.
5. What is the bandwidth of the INA281A2QDBVRQ1?
The bandwidth is 350 kHz.
6. What package does the INA281A2QDBVRQ1 come in?
It is available in a SOT-23-6 package.
7. Can it measure negative voltages?
Yes, it supports a common-mode voltage range from -16 V to 80 V.
8. What is the quiescent current?
The quiescent current is 475 µA.
9. Is it suitable for industrial applications?
Yes, its wide voltage range and robust design make it suitable for industrial use.
10. What are typical applications for this device?
Typical applications include battery management systems, motor control, power monitoring, and automotive electronics.
