INA250-Q1 Texas instruments

INA250-Q1

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INA250-Q1

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Описание

The automotive qualified INA250-Q1 is a voltage-output, current-sensing amplifier family that integrates an internal precision shunt resistor to enable high-accuracy current measurements at common-mode voltages that may vary from 0 V to 36 V, independent of the supply voltage. The INA250-Q1 family is available in four output voltage scales: 200 mV/A, 500 mV/A, 800 mV/A, and 2 V/A. This device is fully tested and specified for continuous currents up to 10 amps at the maximum temperature of +125°C. The INA250-Q1 device operates from a single 2.7-V to 36-V supply and draws a maximum of 300 µA of supply current. All INA250-Q1 gain versions are specified over the extended operating temperature range of –40°C to +125°C, and are available in a TSSOP-16 package.

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C5
Functional Safety-Capable
- Documentation available to aid functional safety system design
Precision Integrated Shunt Resistor:
- Shunt Resistor: 2-mΩ
- Shunt Resistor Tolerance: 0.1% (Maximum)
- 15 A Continuous from –40°C to +85°C
- 0°C to +125°C Temperature Coefficient:
  10 ppm/°C
High Accuracy:
- Gain Error (Shunt and Amplifier): 0.3% (Maximum)
- Offset Current: 50 mA (Maximum, INA250A2-Q1)
Four Available Gains:
- INA250A1-Q1: 200 mV/A
- INA250A2-Q1: 500 mV/A
- INA250A3-Q1: 800 mV/A
- INA250A4-Q1: 2 V/A
Wide Common-Mode Range: –0.1 V to 36 V
Specified Operating Temperature: –40°C to +125°C

Common-mode voltage (max) (V)	36
Common-mode voltage (min) (V)	0
Gain error (%)	0.3
Gain error drift (±) (max) (ppm/°C)	45
CMRR (min) (dB)	100
Bandwidth (kHz)	50
Supply voltage (max) (V)	36
Supply voltage (min) (V)	2.7
Iq (max) (mA)	0.35
Features	Bi-directional, Integrated Shunt, Low-side Capable
Rating	Automotive
TI functional safety category	Functional Safety-Capable
Operating temperature range (°C)	-40 to 125