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INA186A4QDCKRQ1

TIINA186A4QDCKRQ1

Texas Instruments
Current Sense Amplifier 1 Circuit Rail-to-Rail SC-70-6
Active6,923 in stock
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Overview

The INA186A4QDCKRQ1 is an automotive-qualified, bidirectional current sense amplifier designed for high-precision monitoring with a 200 V/V fixed gain. It features an ultra-low supply current of 48uA and a wide common-mode input range of -0.2V to 40V, making it suitable for low-side and high-side sensing in battery-powered systems.

Why Choose This Part

This amplifier offers exceptional power efficiency with a 48uA typical supply current and a 500pA input bias current that minimizes errors from high-impedance shunts. Its rail-to-rail output and functional safety-capable rating simplify design in critical automotive and industrial safety systems.

Applications

Automotive Battery Management Systems
Monitoring charging and discharging currents in 12V or 24V vehicle battery systems with AEC-Q100 qualification.
Body Control Modules
Precise current monitoring for lighting, window motors, and other auxiliary automotive loads.
Precision Industrial Instrumentation
Measuring small differential voltages across shunt resistors in space-constrained industrial sensors.
HEV/EV DC/DC Converters
High-side current sensing for power conversion stages where low power consumption is critical.

Key Specifications

Slew Rate 0.3V/us
Output Type Rail-to-Rail
Mounting Type Surface Mount
Amplifier Type Current Sense
Package / Case 6-TSSOP, SC-88, SOT-363
Current - Supply 48uA
Number of Circuits 1
Current - Input Bias 500 pA
Operating Temperature -40degC ~ 125degC (TA)
Gain Bandwidth Product 33 kHz
Voltage - Input Offset 3 uV
Supplier Device Package SC-70-6
Voltage - Supply Span (Max) 5.5 V
Voltage - Supply Span (Min) 1.7 V

Getting Started

Engineers can evaluate this device using the INA186EVM evaluation module to test various shunt configurations. When designing the PCB, place a 0.1uF bypass capacitor close to the VS pin and keep input traces symmetrical to maintain high common-mode rejection.

Categories

Sensors > Current & Voltage Sensors