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Product Detailed Parameters
- Description：IC CURR SENSE 1 CIRCUIT 20TSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Amplifier Type：Current Sense
- Number of Circuits：1
- Output Type：-
- Slew Rate：2.4V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：90 µA
- Voltage - Input Offset：-
- Current - Supply：1.8mA
- Current - Output / Channel：-
- Voltage - Supply Span (Min)：2.7 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：20-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：20-TSSOP
- -3db Bandwidth：350 kHz
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Overview
The INA253A2QPWRQ1 is an automotive-grade, high-side current sense amplifier featuring an integrated 2mΩ shunt resistor. It provides bidirectional current sensing with a common-mode voltage range of -4V to 80V and a gain of 100 mA/V. The device offers a 3dB bandwidth of 350 kHz, a CMRR of 125 dB, and operates on a supply voltage between 2.7V and 5.5V. It is qualified under AEC-Q100 for temperatures ranging from -40°C to +125°C.
Feature Summary
- Integrates a precision 2mΩ shunt resistor to minimize external component count and PCB space.
- Supports bidirectional current measurement within an 80V common-mode voltage range.
- Delivers high accuracy with 125 dB common-mode rejection ratio and low gain error.
- Qualified for automotive applications with functional safety capabilities.
Applications
- Automotive battery management systems
- Electric vehicle motor control circuits
- High-side current monitoring in power distribution units
Procurement Notes
Verify the specific suffix 'A2' indicates the correct gain configuration (100 mA/V) and package type (TSSOP-20). Confirm AEC-Q100 qualification status is required for your automotive design. Ensure the integrated shunt tolerance matches your system's accuracy requirements before finalizing procurement.
Selection Notes
Select this component when a compact, high-accuracy solution for high-side current sensing is needed. The integrated shunt eliminates external resistor matching issues. Ideal for designs requiring wide common-mode voltage coverage up to 80V and bidirectional measurement capabilities in automotive environments.
Part Context
Part of the INA253-Q1 family, designed specifically for automotive current sensing applications. It combines a precision amplifier with an integrated shunt to simplify circuit design. The Q1 designation confirms its compliance with automotive reliability standards.
Replacement Considerations
Check datasheets for alternative TI current sense amplifiers with similar gain and common-mode ranges. Verify pin compatibility if substituting within the same package family. Ensure any replacement also meets AEC-Q100 requirements for automotive use.
FAQ
What is the common-mode voltage range?
The device supports a common-mode voltage range from -4V to 80V.
Is the shunt resistor integrated?
Yes, the INA253A2QPWRQ1 includes an integrated 2mΩ precision shunt resistor.
What is the bandwidth?
The amplifier has a 3dB bandwidth of 350 kHz.
