INA181A3QDBVRQ1

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INA181A3QDBVRQ1

IC CURR SENSE 1 CIRCUIT SOT23-6

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規格

Supplier Texas Instruments
Package Tape & Reel (TR),Cut Tape (CT)
Series Automotive, AEC-Q100
ProductStatus Active
AmplifierType Current Sense
NumberofCircuits 1
OutputType Rail-to-Rail
SlewRate 2V/µs
GainBandwidthProduct 150 kHz
Current-InputBias 75 µA
Voltage-InputOffset 100 µV
Current-Supply 195µA
Current-Output/Channel 8 mA
Voltage-SupplySpan(Min) 2.7 V
Voltage-SupplySpan(Max) 5.5 V
OperatingTemperature -40°C ~ 125°C (TA)
MountingType Surface Mount
Package/Case SOT-23-6

概述

Description

INA181A3QDBVRQ1 is a Texas Instruments high-side current-sense amplifier (automotive-grade). It measures the voltage across a shunt resistor placed in the power path and provides a single-ended output voltage proportional to the sensed current. The A3 variant is one of the fixed-gain, high-performance members of the INA181 family, suitable for high-side current sensing at automotive voltages. It is offered in an automotive-rated (Q) package (DBV) with RoHS-compliant reel packaging (RQ1). Key benefits include wide input common-mode range (up to high-side voltages), low offset, fast response, good CMRR, rail-to-rail-friendly output, and built-in protection features. Typical applications: battery management, motor control, DC-DC converters, and other vehicle electronics requiring accurate current measurement with minimal external components (usually just a shunt resistor and supply).

Package

DBV package, i.e., VSSOP-8 (3×3 mm) leadframe package.

Pinout

- Pin count: 8 pins (DBV package, VSSOP-8)
- Function: High-side current-sense amplifier (current-shunt monitor). It senses the voltage across a low-value shunt resistor on the high side and outputs a single-ended voltage proportional to the load current (automotive-qualified device).

Manufacturer

- Manufacturer: Texas Instruments (TI).
- What kind of company: TI is a global American semiconductor company that designs and manufactures analog and embedded processing integrated circuits for automotive, industrial, consumer, and other markets.

Application

- Automotive/industrial high-side current sensing
- DC-DC converters and PMIC current monitoring
- Motor-control current sensing
- Battery-management systems (charge/discharge current)
- Power-supply protection and overcurrent detection

Equivalent

Equivalents (high‑side current-sense amps with similar functionality):
- TI: INA182, INA183 (different gains, automotive variants)
- Analog Devices: AD8210, AD8214
- Linear Technology: LTC6101, LTC6102, LTC6103
- Maxim Integrated: MAX4080, MAX4081
Note: exact specs (gain, input range, supply, temp grade) vary. Verify common‑mode range, gain, and automotive qualification for your design.

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