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Product details

Parameters

Common mode voltage (Max) (V) 60 Common mode voltage (Min) (V) 2.7 Input offset (+/-) (Max) (uV) 2000 Input offset drift (+/-) (Typ) (uV/C) 1 Gain (V/V) Adjustable Gain error (%) 2 Gain error drift (+/-) (Max) (ppm/°C) 100 CMRR (Min) (dB) 100 Bandwidth (kHz) 440 Supply voltage (Max) (V) 60 Supply voltage (Min) (V) 2.7 Iq (Max) (mA) 0.125 Number of channels (#) 1 Comparators (#) 0 Features Current Output Rating Automotive Operating temperature range (C) -40 to 125 open-in-new Find other Current sense amplifiers analog output

Package | Pins | Size

TSSOP (PW) 8 19 mm² 3 x 6.4 open-in-new Find other Current sense amplifiers analog output

Features

  • 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 C6
  • Complete Unidirectional High-Side Current Measurement Circuit
  • Wide Supply and Common-Mode Ranges
    • INA139-Q1: 2.7 V to 40 V
    • INA169-Q1: 2.7 V to 60 V
  • Independent Supply and Input Common-Mode
    Voltages
  • Single Resistor Gain Set
  • Low Quiescent Current (60 µA Typical)
  • Wide Temperature Range: –40°C to +125°C
  • Package: TSSOP-8
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Description

The INA139-Q1 and INA169-Q1 (INA1x9-Q1) are high-side, unidirectional, current shunt monitors. Wide input common-mode voltage range, high-speed, low quiescent current, and TSSOP-8 packaging enable use in a variety of applications.

The device converts a differential input voltage to a current output. This current is converted back to a voltage with an external load resistor that sets any gain from 1 to over 100. Although designed for current shunt measurement, the circuit invites creative applications in measurement and level shifting.

Both the INA139-Q1 and INA169-Q1 are available in a TSSOP-8 package, and are specified for the –40°C to +125°C temperature range.

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Same functionality and pinout but is not an equivalent to the compared device:
INA139-Q1 ACTIVE AEC-Q100, 2.7 to 36V, 440kHz Variable gain current sense amplifier The INA139-Q1 is functionally equivalent supporting up to 36 V
INA168-Q1 ACTIVE AEC-Q100, 2.7 to 60V, 800kHz Variable gain current sense amplifier The INA168-Q1 is functionally equivalent with lower bandwidth

Technical documentation

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Design tools & simulation

SIMULATION MODEL Download
SBOC008B.ZIP (38 KB) - PSpice Model
SIMULATION MODEL Download
SBOC162C.TSC (82 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SBOM223B.ZIP (4 KB) - TINA-TI Spice Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOL Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide

Reference designs

REFERENCE DESIGNS Download
Range boost converter reference design to drive two strings of automotive LEDs
PMP9010 This wide input voltage range boost operates from an input of 9V - 32V and regulates current in two strings of 13 LEDs. A second control loop monitors and regulates the input current during drop outs or faults. Discrete linear regulators at the bottom of each string control the individual string (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Automotive Range Boost Converter Drives Two Strings of LEDs Reference Design
PMP8948 — This wide input voltage range boost operates from an input of 9V - 32V and regulates current in two strings of 13 LEDs. Additionally, a second control loop monitors and regulates the input current during drop outs or faults. This low cost design operates at greater than 94% efficiency.

CAD/CAE symbols

Package Pins Download
TSSOP (PW) 8 View options

Ordering & quality

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

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