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Product Detailed Parameters
- Description：AEC-Q100, 40-V, BIDIRECTIONAL, H
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Amplifier Type：Current Sense
- Number of Circuits：1
- Output Type：Rail-to-Rail
- Slew Rate：0.3V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：500 pA
- Voltage - Input Offset：3 µV
- Current - Supply：48µA
- Current - Output / Channel：-
- Voltage - Supply Span (Min)：1.7 V
- Voltage - Supply Span (Max)：5.5 V
- Operating Temperature：-40°C ~ 125°C (TA)
- Grade：Automotive
- Qualification：AEC-Q100
- Mounting Type：Surface Mount
- Package / Case：SOT-23-8 Thin, TSOT-23-8
- Supplier Device Package：TSOT-23-8
- -3db Bandwidth：27 kHz
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Overview
The INA186A5QDDFRQ1 is an AEC-Q100 qualified, bidirectional current-sense amplifier with a fixed gain of 500 V/V. It operates on a single supply from 1.7 V to 5.5 V and supports common-mode voltages from -0.2 V to +40 V. Key electrical characteristics include a maximum offset voltage of ±50 µV, a typical quiescent current of 48 µA, and a bandwidth of 27 kHz. The device features picoamp input bias currents and includes an enable pin for low-power shutdown.
Feature Summary
- Bidirectional sensing capability via external reference voltage
- Ultra-low input bias current for high-impedance shunt compatibility
- Integrated enable pin for power-down mode control
- Rail-to-rail output swing for extended dynamic range
Applications
- Automotive body control modules (BCM)
- Telematics control units
- Emergency call (eCall) systems
- 12-V battery management systems (BMS)
Procurement Notes
Verify the specific suffix 'QDDFRQ1' corresponds to the SOT-23-8 DDF package with the ENABLE pin functionality. Confirm that the 'A5' designation matches the required 500 V/V gain setting for your circuit design. Ensure the component meets AEC-Q100 Grade 1 requirements if operating in automotive environments.
Selection Notes
Select this part when a high gain of 500 V/V is necessary to amplify small differential signals. The DDF package provides the ENABLE pin, which is critical for applications requiring periodic monitoring to minimize average power consumption. Verify that the 27 kHz bandwidth is sufficient for the signal frequencies present in the target application.
Part Context
This component belongs to the INA186-Q1 family of automotive-grade current sense amplifiers. It shares the core architecture with other variants but is distinguished by its specific 500 V/V gain option and the inclusion of the ENABLE pin within the SOT-23-8 package format.
Replacement Considerations
Direct substitutes within the same family include INA186A1-Q1 through INA186A4-Q1, provided the gain difference is acceptable. Other packages like SC70 or SOT-23-5 are available but lack the ENABLE pin feature found in the DDF variant.
