INA139QPWRQ1

$1.40

Description：IC CURRENT MONITOR 0.5% 8TSSOP
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:dec2a83d1b50 Category: Current Regulation/Management Brand: Texas Instruments

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Product introduction

INA139QPWRQ1 is listed in the Current Regulation/Management range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC CURRENT MONITOR 0.5% 8TSSOP. Review the specifications below when checking this part for your BOM.

Current Regulation/Management specifications for INA139QPWRQ1

Description：IC CURRENT MONITOR 0.5% 8TSSOP
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Current Monitor
Sensing Method：High-Side
Accuracy：±0.5%
Voltage - Input：2.7V ~ 40V
Current - Output：-
Operating Temperature：-40°C ~ 125°C (TA)
Grade：Automotive
Qualification：AEC-Q100
Mounting Type：Surface Mount
Package / Case：8-TSSOP (0.173", 4.40mm Width)
Supplier Device Package：8-TSSOP

Current Regulation/Management datasheet and documents for INA139QPWRQ1

INA139QPWRQ1

Current Regulation/Management Overview

The INA139QPWRQ1 is an automotive-grade, high-side current shunt monitor manufactured by Texas Instruments. It features a current output interface and supports a maximum common-mode voltage of 36 V. The device operates within a supply voltage range of 2.7 V to 40 V and maintains a minimum common-mode rejection ratio (CMRR) of 100 dB. It is housed in an 8-pin TSSOP package with dimensions of 4.4 mm length. The component is qualified to AEC-Q100 standards and functions reliably across an operating temperature range of -40 °C to +125 °C.

Current Regulation/Management Feature Summary

High-side current sensing capability for monitoring load currents without disrupting the ground reference.

Current Regulation/Management Applications

Automotive battery management systems
Motor control circuits
Power distribution units

Current Regulation/Management Procurement Notes

Verify that the specific part number matches the required automotive grade and package configuration. Confirm AEC-Q100 qualification status aligns with project reliability requirements. Ensure the TSSOP-8 footprint matches the PCB layout design. Check for any specific ordering suffixes that may indicate different tape-and-reel quantities or lead-free specifications as defined by the manufacturer.

Current Regulation/Management Selection Notes

Select this component when high-side current monitoring is required in automotive environments. The 36 V common-mode limit suits most standard automotive electrical systems. The current output simplifies integration with ADCs or comparators. Consider the 100 dB CMRR for noise immunity in electrically noisy engine compartments. Verify power supply voltage compatibility with the 2.7 V to 40 V operational range.

Current Regulation/Management Part Context

This device belongs to the INA139 family of current shunt monitors designed for precision measurement. The Q1 suffix indicates automotive qualification under AEC-Q100 standards. It complements other Texas Instruments analog signal chain components used in vehicle electronics. The TSSOP-8 package provides a compact solution for space-constrained automotive PCB designs.