TIINA301A3IDGKR
Overview
The INA301A3IDGKR is a high-speed, zero-drift current-shunt monitor featuring an integrated comparator for overcurrent protection. It operates with a common-mode voltage range of 0V to 36V and provides both an analog output proportional to the current and a fast-acting alert signal. The device is designed to detect overcurrent conditions in as little as 1 microsecond, making it ideal for protecting sensitive electronics.
Why Choose This Part
The integrated comparator eliminates the need for external reference and comparator circuits, reducing PCB footprint and BOM cost. Its zero-drift architecture ensures high accuracy of 0.2 percent across the full temperature range of -40C to 125C. The threshold is easily programmable via a single resistor, and the open-drain output supports a latching mode for critical system fault handling.
Applications
Key Specifications
Getting Started
To evaluate this part, use the INA301EVM evaluation module which allows for rapid prototyping of both the amplifier gain and comparator threshold. Connect a shunt resistor across the VIN+ and VIN- pins, ensuring it is sized for the expected current range and the A3 variant's specific gain profile. Set the LIMIT pin voltage with a resistor divider to define the alert threshold before powering the device between 2.7V and 5.5V.
