Texas Instruments INA745BQWRELRQ1
Manufacturer No:
INA745BQWRELRQ1
Manufacturer:
Texas Instruments
Package:
Description:
AEC-Q100, 40-V 16-bit I²C-output digital power monitor with 800-µΩ EZShunt™ Technology
Quantity:
In Stock :2885
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Expected Shipping：Sat, May 30 - Sun, May 31, 2026
Lead Time：Inquire about availability
Date Code：Within 2 Years
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INA745BQWRELRQ1 Information
Texas Instruments INA745BQWRELRQ1 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments INA745BQWRELRQ1.
- Type
- Parameter
- Continuous current (max) (A)
- 35
- Common-mode voltage (max) (V)
- 40
- Common-mode voltage (min) (V)
- -0.1
- Input offset current (±) (max) (mA)
- 62.5
- Input offset current drift (±) (typ) (µA/°C)
- 5
- Gain error (%)
- 0.1
- Supply voltage (max) (V)
- 5.5
- Supply voltage (min) (V)
- 2.7
- Iq (max) (mA)
- 1
- Digital interface
- I2C
- Type
- Parameter
- Resolution (Bits)
- 16
- Features
- Alert Function, Bidirectional, Digital Temp Monitor, Integrated Power Monitor, Integrated Shunt, Low-side Capable, Standard precision
- Rating
- Automotive
- Operating temperature range (°C)
- -40 to 125
- Package
- VQFN (REL)
- Pins
- 14
- Size
- 15 mm² 5 x 3
- REACH Status
- Yes
- RoHS Status
- RoHS Compliant
Download datasheets and manufacturer documentation for Texas Instruments INA745BQWRELRQ1.
Data sheet:
Application note:
The INA745x-Q1 is a digital power monitor with an integrated current sensing element along with a 16-bit delta-sigma ADC specifically designed for current-sensing applications. The device can measure full-scale currents up to ±39.32A with common-mode voltage support from –0.1V to +40V.
The INA745x-Q1 reports current, bus voltage, die temperature, power, energy and charge accumulation while employing a precision ±0.5% integrated oscillator, all while performing the needed calculations in the background. The integrated temperature sensor is ±2.5°C accurate over the junction temperature range.
The low offset and gain drift design of the INA745x-Q1 allows the device to be used in precise systems that do not undergo multi-temperature calibration during manufacturing.
The device allows for selectable ADC conversion times from 50µs to 4.12ms as well as sample averaging from 1x to 1024x, which further helps reduce the noise of the measured data.
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, TA
- Functional Safety-Capable
- Low loss integrated shunt resistor
- Internal resistance: 800µΩ, TA = 25°C
- Continuous current: ±35A, TA = 25°C
- Peak measurement capability: ±39.32A
- Current monitoring accuracy: A/B Grade, maximum
- Offset current: ±6.25mA / ±62.5mA
- Offset drift: ±30µA/°C (A and B Grades)
- System gain error: ±0.75% / ±1.25%
- Common-mode rejection: ±0.125 / ±1.25mA/V
- Power monitoring accuracy: A/B Grade, maximum
- ±0.9% / ±1.6% at 25°C, full scale
- Energy and charge accuracy: A/B Grade, maximum
- ±1.4% / ±2.1% at 25°C, full scale
- Temperature sensor: ±1.5°C (maximum at 25°C)
- Precision oscillator: ±0.5% (maximum at 25°C)
- Programmable conversion time and averaging
- 2.94MHz high-speed I2C interface with 16 pin-selectable addresses
- Operates from a 2.7V to 5.5V supply:
- Operational current: 640µA (typical)
- Shutdown current: 5µA (maximum)
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