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Product Detailed Parameters
- Description：IC CURR SENSE 1 CIRCUIT SC70-6
- 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：35 kHz
- 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：6-TSSOP, SC-88, SOT-363
- Supplier Device Package：SC-70-6
- -3db Bandwidth：-
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Overview
The INA190A3QDCKRQ1 is an AEC-Q100 qualified, bidirectional current sense amplifier designed for automotive applications. It operates with a supply voltage range of 1.7 V to 5.5 V and supports common-mode voltages from -200 mV to 40 V. The device features a fixed gain of 100 V/V, a gain error of -0.06%, and a typical input offset voltage of -3 µV. Key electrical parameters include a 35 kHz gain-bandwidth product, 150 dB common-mode rejection ratio (CMRR), and 65 µA operating supply current. It functions within a temperature range of -40°C to +125°C and is housed in a SC-70-6 package.
Feature Summary
- Automotive-grade reliability certified under AEC-Q100 standards
- Bidirectional sensing capability for high-side and low-side monitoring
- Ultra-low input offset voltage for enhanced measurement precision
Applications
- Automotive battery management systems
- Motor control circuits
- High-side current monitoring in vehicle electronics
Procurement Notes
Verify the specific suffix Q1 confirms AEC-Q100 automotive qualification status. Ensure the package designation matches the required SC-70-6 footprint for PCB layout compatibility. Confirm that the gain setting aligns with system requirements before finalizing procurement orders.
Selection Notes
Select this component when automotive certification is mandatory for bidirectional current sensing. The fixed 100 V/V gain suits applications requiring high resolution for small shunt voltages. Consider the 40 V common-mode range for direct connection to higher voltage rails without additional level shifting.
Part Context
This part belongs to the Texas Instruments INA190 family of zero-drift current sense amplifiers. The series emphasizes high accuracy and low noise for demanding industrial and automotive environments. The Q1 suffix specifically denotes compliance with automotive quality and reliability standards.
Replacement Considerations
Non-qualified equivalents such as INA190A3IDCKR lack AEC-Q100 certification. Verify functional pinout compatibility if substituting with other INA190 variants or different manufacturer current sense amplifiers.
