INA186A2QDCKRQ1
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Texas Instruments INA186A2QDCKRQ1

Manufacturer No:
INA186A2QDCKRQ1
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC CURR SENSE 1 CIRCUIT SC70-6
Delivery:
Payment:
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Product Introduction

Overview

The INA186A2QDCKRQ1, part of the INA186-Q1 series, is an automotive-grade, low-power, voltage-output current-sense amplifier designed by Texas Instruments. This device is optimized for high-precision current measurement in automotive and other cost-sensitive applications. It operates over a wide common-mode voltage range from –0.2 V to +40 V, independent of the supply voltage, which can range from 1.7 V to 5.5 V. The INA186-Q1 is AEC-Q100 qualified, ensuring reliability in harsh automotive environments with a temperature range of –40°C to +125°C.

Key Specifications

Parameter Value Unit
Supply Voltage 1.7 to 5.5 V
Common-Mode Voltage Range –0.2 to +40 V
Input Bias Current 0.5 nA (typ) nA
Gain Options 25 V/V, 50 V/V, 100 V/V, 200 V/V, 500 V/V V/V
Offset Voltage ±50 µV (max) µV
Quiescent Current 48 µA (typ), 90 µA (max) µA
Package Options SC70 (6), SOT-23 (5), SOT-23 (8)
Operating Temperature Range –40°C to +125°C °C

Key Features

  • High Precision Current Measurement: The INA186-Q1 offers low gain error and offset specifications, allowing for accurate current measurements over a wide dynamic range.
  • Low Input Bias Current: The device features very low input bias current, reducing power consumption and enabling the use of larger current-sense resistors and input filters without compromising accuracy.
  • Low Quiescent Current: The device draws a low quiescent current of 48 µA (typical) and can be disabled to reduce supply current to less than 0.1 µA.
  • Bidirectional Current Monitoring: Certain packages support bidirectional current measurement by using the REF pin to offset the output voltage.
  • High Common-Mode Rejection: The device uses a capacitively coupled amplifier, providing high common-mode rejection of approximately 150 dB.
  • Rail-to-Rail Output Swing: The output voltage can swing close to the supply rail and ground, maximizing the usable output range).

Applications

  • Body Control Module (BCM): Used in automotive body control modules for precise current monitoring.
  • Telematics Control Unit: Applied in telematics systems for accurate current sensing.
  • Emergency Call (eCall): Utilized in eCall systems to ensure reliable current monitoring.
  • 12-V Battery Management System (BMS): Employed in BMS for monitoring battery currents.
  • Automotive Head Unit: Used in automotive head units for various current-sensing tasks.

Q & A

  1. What is the operating temperature range of the INA186-Q1?

    The INA186-Q1 operates over a temperature range of –40°C to +125°C).

  2. What are the available gain options for the INA186-Q1?

    The device is available with gain options of 25 V/V, 50 V/V, 100 V/V, 200 V/V, and 500 V/V).

  3. What is the typical quiescent current of the INA186-Q1?

    The typical quiescent current is 48 µA, with a maximum of 90 µA).

  4. Can the INA186-Q1 measure bidirectional currents?

    Yes, certain packages of the INA186-Q1 support bidirectional current measurement using the REF pin).

  5. What is the common-mode voltage range of the INA186-Q1?

    The device can handle common-mode voltages from –0.2 V to +40 V).

  6. What are the package options available for the INA186-Q1?

    The device is offered in SC70 (6), SOT-23 (5), and SOT-23 (8) packages).

  7. How does the INA186-Q1 achieve high common-mode rejection?

    The device uses a capacitively coupled amplifier, which blocks dc common-mode voltages, resulting in high common-mode rejection of approximately 150 dB).

  8. What is the significance of the low input bias current in the INA186-Q1?

    The low input bias current reduces power consumption, allows the use of larger current-sense resistors, and enables input filters without compromising accuracy).

  9. Can the INA186-Q1 be disabled to reduce power consumption?

    Yes, the device can be disabled, reducing the supply current to less than 0.1 µA).

  10. What is the rail-to-rail output swing capability of the INA186-Q1?

    The output voltage can swing close to the supply rail and ground, maximizing the usable output range).

Product Attributes

Amplifier Type:Current Sense
Number of Circuits:1
Output Type:Rail-to-Rail
Slew Rate:0.3V/µs
Gain Bandwidth Product:37 kHz
-3db Bandwidth:- 
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)
Mounting Type:Surface Mount
Package / Case:6-TSSOP, SC-88, SOT-363
Supplier Device Package:SC-70-6
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Similar Products

Part Number INA186A2QDCKRQ1 INA186A5QDCKRQ1 INA186A3QDCKRQ1 INA186A4QDCKRQ1 INA186A1QDCKRQ1
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active Active Active
Amplifier Type Current Sense Current Sense Current Sense Current Sense Current Sense
Number of Circuits 1 1 1 1 1
Output Type Rail-to-Rail Rail-to-Rail Rail-to-Rail Rail-to-Rail Rail-to-Rail
Slew Rate 0.3V/µs 0.3V/µs 0.3V/µs 0.3V/µs 0.3V/µs
Gain Bandwidth Product 37 kHz 27 kHz 35 kHz 33 kHz 45 kHz
-3db Bandwidth - - - - -
Current - Input Bias 500 pA 500 pA 500 pA 500 pA 500 pA
Voltage - Input Offset 3 µV 3 µV 3 µV 3 µV 3 µV
Current - Supply 48µA 48µA 48µA 48µA 48µA
Current - Output / Channel - - - - -
Voltage - Supply Span (Min) 1.7 V 1.7 V 1.7 V 1.7 V 1.7 V
Voltage - Supply Span (Max) 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V
Operating Temperature -40°C ~ 125°C (TA) -40°C ~ 125°C (TA) -40°C ~ 125°C (TA) -40°C ~ 125°C (TA) -40°C ~ 125°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 6-TSSOP, SC-88, SOT-363 6-TSSOP, SC-88, SOT-363 6-TSSOP, SC-88, SOT-363 6-TSSOP, SC-88, SOT-363 6-TSSOP, SC-88, SOT-363
Supplier Device Package SC-70-6 SC-70-6 SC-70-6 SC-70-6 SC-70-6

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