Overview
The INA169NA/3K is a high-side, unipolar current shunt monitor produced by Texas Instruments. This device is designed to provide accurate and efficient current measurement in a variety of applications. It features a wide input common-mode voltage range, high-speed operation, and low quiescent current, making it suitable for use in systems where power efficiency and precision are crucial. The INA169NA/3K is packaged in a 5-pin SOT-23 package, which is compact and convenient for integration into various electronic designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Temperature Range | –40 to +85 | °C |
| Power Supply Range | 2.7 to 60 | V |
| Common-Mode Input Range | 2.7 to 60 | V |
| Full-Scale Sense Voltage | 100 to 500 | mV |
| Offset Voltage (RTI) | ±0.2 to ±1.5 | mV |
| Input Bias Current | 10 | µA |
| Bandwidth (ROUT = 10 kΩ) | 440 kHz | |
| Settling Time (0.1%, 5-V step, ROUT = 10 kΩ) | 2.5 µs | |
| Quiescent Current | 60 to 125 | µA |
| Package Type | 5-pin SOT-23 |
Key Features
- Complete Unipolar High-Side Current Measurement Circuit: The INA169NA/3K provides a complete solution for high-side current measurement.
- Wide Supply and Common-Mode Range: The device can operate with supply and common-mode voltages ranging from 2.7 V to 60 V.
- Independent Supply and Input Common-Mode Voltages: This allows for flexible design and integration into various systems.
- Single Resistor Gain Set: The gain can be set using a single external resistor, allowing for customizable gain settings.
- Low Quiescent Current: With a typical quiescent current of 60 µA, this device is energy-efficient.
- Compact Packaging: The 5-pin SOT-23 package is small and convenient for use in space-constrained designs.
Applications
The INA169NA/3K is suitable for a variety of applications, including:
- Automotive Systems: For monitoring current in automotive electrical systems.
- Industrial Automation: For current measurement in industrial control systems and motor drives.
- Power Supplies and DC-DC Converters: To monitor output current and ensure efficient operation.
- Battery Management Systems: For accurate current measurement in battery charging and discharging cycles.
Q & A
- What is the operating temperature range of the INA169NA/3K?
The operating temperature range is from –40°C to +85°C. - What is the power supply range for the INA169NA/3K?
The power supply range is from 2.7 V to 60 V. - What is the common-mode input range for the INA169NA/3K?
The common-mode input range is from 2.7 V to 60 V. - How is the gain set for the INA169NA/3K?
The gain can be set using a single external resistor. - What is the typical quiescent current of the INA169NA/3K?
The typical quiescent current is 60 µA. - What is the bandwidth of the INA169NA/3K when ROUT = 10 kΩ?
The bandwidth is 440 kHz. - What is the settling time for a 5-V step with ROUT = 10 kΩ?
The settling time is 2.5 µs. - In what package is the INA169NA/3K available?
The device is available in a 5-pin SOT-23 package. - What are some common applications for the INA169NA/3K?
Common applications include automotive systems, industrial automation, power supplies, and battery management systems. - Is the INA169NA/3K RoHS compliant?
Yes, the INA169NA/3K is RoHS compliant.
