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INA168NA/3K

TIINA168NA/3K

Texas Instruments
Current Monitor Regulator High-Side SOT-23-5
Active9,001 in stock

Overview

The INA168NA/3K is a high-side, unipolar current shunt monitor designed to translate a small differential voltage across a sense resistor into a proportional ground-referenced output current. It features a wide common-mode input voltage range from 2.7V to 60V, which remains independent of the device's supply voltage.

Why Choose This Part

The device offers extreme flexibility by allowing the output current to be converted to a voltage via a single external resistor, enabling customizable gain. Its low 25uA typical quiescent current and small SOT-23-5 footprint make it ideal for power-constrained and space-limited designs.

Applications

Battery Charging Systems
Monitoring charge and discharge cycles in portable devices and battery-backup systems.
Power Management
Real-time current sensing for overcurrent protection and power distribution units.
Industrial Instrumentation
Precision current monitoring in 2.7V to 60V industrial control loops and sensor systems.

Key Specifications

Accuracy +/-0.5%
Function Current Monitor
Mounting Type Surface Mount
Package / Case SC-74A, SOT-753
Sensing Method High-Side
Voltage - Input 2.7V ~ 60V
Operating Temperature -40degC ~ 125degC
Supplier Device Package SOT-23-5

Getting Started

To implement the INA168, place a low-value shunt resistor in the high-side supply line and select an external load resistor (RL) to set the desired output voltage gain. Ensure the shunt resistor value is chosen so the differential input voltage stays within the linear range for your specific application requirements.

Also Consider

INA169NA/3K TITexas Instruments - Similar pinout and function but optimized for higher common-mode voltages up to 60V with slightly different performance characteristics.
INA219AIDCNR TITexas Instruments - A digital alternative that provides current, voltage, and power readings via an I2C interface for microcontroller-based systems.
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