INA301-Q1

ACTIVE

AEC-Q100, 36V, 550kHz, 4V/µs, high-precision current sense amplifier w/ comparator

Product details

Product type Analog output with integrated comparator Common-mode voltage (max) (V) 36 Common-mode voltage (min) (V) 0 Input offset (±) (max) (µV) 35, 50, 125 Input offset drift (±) (typ) (µV/°C) 0.1 Voltage gain (V/V) 20, 50, 100 CMRR (min) (dB) 100 Bandwidth (kHz) 450, 500, 550 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.7 Number of channels 1 Comparators (#) 1 Gain error (%) 0.1, 0.15, 0.2 Gain error drift (±) (max) (ppm/°C) 10 Slew rate (V/µs) 4 Features Alert Function, High precision, Low-side Capable Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
Product type Analog output with integrated comparator Common-mode voltage (max) (V) 36 Common-mode voltage (min) (V) 0 Input offset (±) (max) (µV) 35, 50, 125 Input offset drift (±) (typ) (µV/°C) 0.1 Voltage gain (V/V) 20, 50, 100 CMRR (min) (dB) 100 Bandwidth (kHz) 450, 500, 550 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.7 Number of channels 1 Comparators (#) 1 Gain error (%) 0.1, 0.15, 0.2 Gain error drift (±) (max) (ppm/°C) 10 Slew rate (V/µs) 4 Features Alert Function, High precision, Low-side Capable Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C6
  • Functional Safety-Capable
  • Wide common-mode input range: 0 V to 36 V
  • Dual output: amplifier and comparator output
  • High accuracy amplifier:
    • Offset voltage: 35 µV (maximum)
    • Offset voltage drift: 0.5 µV/°C (maximum)
    • Gain error: 0.1% (maximum)
    • Gain error drift: 10 ppm/°C
  • Available amplifier gains:
    • INA301A1-Q1: 20 V/V
    • INA301A2-Q1: 50 V/V
    • INA301A3-Q1: 100 V/V
  • Programmable alert threshold set through a single resistor
  • Total alert response time: 1 µs
  • Open-drain output with both transparent and latching modes
  • Package: VSSOP-8
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C6
  • Functional Safety-Capable
  • Wide common-mode input range: 0 V to 36 V
  • Dual output: amplifier and comparator output
  • High accuracy amplifier:
    • Offset voltage: 35 µV (maximum)
    • Offset voltage drift: 0.5 µV/°C (maximum)
    • Gain error: 0.1% (maximum)
    • Gain error drift: 10 ppm/°C
  • Available amplifier gains:
    • INA301A1-Q1: 20 V/V
    • INA301A2-Q1: 50 V/V
    • INA301A3-Q1: 100 V/V
  • Programmable alert threshold set through a single resistor
  • Total alert response time: 1 µs
  • Open-drain output with both transparent and latching modes
  • Package: VSSOP-8

The INA301-Q1 includes both a high common-mode, current-sensing amplifier and a high-speed comparator configured to provide overcurrent protection by measuring the voltage developed across a current-sensing or current-shunt resistor and comparing that voltage to a defined threshold limit. This device features an adjustable limit-threshold range that is set using a single external limit-setting resistor. This current-shunt monitor measures differential voltage signals on common-mode voltages that can vary from 0 V up to 36 V, independent of the supply voltage.

The open-drain alert output can be configured to operate in either a transparent mode, where the output status follows the input state, or in a latched mode, where the alert output is cleared when the latch is reset. The device alert response time is under 1 µs, allowing for quick detection of overcurrent events.

This device operates from a single 2.7-V to 5.5-V supply, drawing a maximum supply current of 700 µA. The device is specified over the extended operating temperature range of –40°C to +125°C, and is available in an 8-pin VSSOP package.

The INA301-Q1 includes both a high common-mode, current-sensing amplifier and a high-speed comparator configured to provide overcurrent protection by measuring the voltage developed across a current-sensing or current-shunt resistor and comparing that voltage to a defined threshold limit. This device features an adjustable limit-threshold range that is set using a single external limit-setting resistor. This current-shunt monitor measures differential voltage signals on common-mode voltages that can vary from 0 V up to 36 V, independent of the supply voltage.

The open-drain alert output can be configured to operate in either a transparent mode, where the output status follows the input state, or in a latched mode, where the alert output is cleared when the latch is reset. The device alert response time is under 1 µs, allowing for quick detection of overcurrent events.

This device operates from a single 2.7-V to 5.5-V supply, drawing a maximum supply current of 700 µA. The device is specified over the extended operating temperature range of –40°C to +125°C, and is available in an 8-pin VSSOP package.

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Similar products you might be interested in

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INA300-Q1 ACTIVE AEC-Q100, 36V current sense comparator The INA300-Q1 offers only an ALERT signal
INA302-Q1 ACTIVE AEC-Q100, 36V, bi-directional, 550kHz, 4V/µs, high-precision current sense amp w/ dual comparators The INA302-Q1 has dual integrated comparators
INA303-Q1 ACTIVE AEC-Q100, 36V, bi-directional, 550kHz, 4V/µs, high-precision current sense amp w/ window comparator The INA303-Q1 has window comparotor functionality
INA381-Q1 ACTIVE AEC-Q100, 26-V, 350-kHz current sense amplifier with integrated overcurrent comparator The INA381-Q1 has similar functionality with lower perfomance at a lower price.

Technical documentation

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Type Title Date
* Data sheet INA301-Q1 36-V, Automotive, High-Speed, Zero-Drift, Voltage-Output Current-Shunt Monitor With High-Speed, Overcurrent Protection Comparator datasheet (Rev. B) PDF | HTML 01 Apr 2022
Application note Integrating the Current Sensing Resistor (Rev. D) PDF | HTML 07 Apr 2023
Application note Precision Current Measurements on High-Voltage Power-Supply Rails (Rev. F) PDF | HTML 17 Oct 2022
Application note Measuring Current To Detect Out-of-Range Conditions (Rev. D) PDF | HTML 10 Mar 2022
Application note Using a PCB Copper Trace as a Current-Sense Shunt Resistor PDF | HTML 25 Jan 2022
Functional safety information INA301-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 11 Oct 2021
Application note Measuring Current for Handle Multiple Out-of-Range Conditions (Rev. C) PDF | HTML 04 Oct 2021
Application note Integrating the Current Sensing Signal Path (Rev. B) PDF | HTML 29 Sep 2021
Selection guide Current Sense Amplifiers (Rev. E) 20 Sep 2021
Application note High-Side Motor Current Monitoring for Over-Current Protection (Rev. B) PDF | HTML 23 Feb 2021
Technical article Use fast, precise overcurrent detection to enable diagnostics in automotive safety systems 24 Jun 2019
Application note Bidirectional, Low-Side Phase Current Sensing With Onboard Overcurrent Detection (Rev. D) 06 Mar 2019
Application note External current sense amps vs integrated onboard amplifiers for current sensing (Rev. B) 19 Feb 2019
Circuit design Overcurrent event detection circuit 31 Jul 2018
Application note Low-Drift, Low-Side Current Measurements for Three-Phase Systems (Rev. B) 05 Sep 2017
White paper Overcurrent protection enables more efficient and reliable systems 16 May 2016
EVM User's guide INA301EVM User Guide 18 Nov 2015

Design & development

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

Evaluation board

INA301EVM — INA301 Evaluation Module

Three different gain devices in the same EVM package, which enables the custome quickly setup and evaluate any or all the devices as desired.

User guide: PDF
Not available on TI.com
Simulation model

INA301 PSpice Model

SBOMA60.ZIP (71 KB) - PSpice Model
Simulation model

INA301 TINA-TI Reference Design (Rev. A)

SBOM959A.TSC (468 KB) - TINA-TI Reference Design
Simulation model

INA301 TINA-TI Spice Model (Rev. A)

SBOM960A.ZIP (22 KB) - TINA-TI Spice Model
Simulation model

INA301A1 PSpice Model

SBOMBH1.ZIP (28 KB) - PSpice Model
Simulation model

INA301A2 PSpice Model

SBOMBF4.ZIP (27 KB) - PSpice Model
Simulation model

INA301A3 PSpice Model

SBOMBH2.ZIP (28 KB) - PSpice Model
Calculation tool

CS-AMPLIFIER-ERROR-TOOL Current Sense Amplifier Comparison and Error Tool

This Excel calculator provides a comparison between two and five of our standard current sense amplifiers, delivering a chart containing the basic parameters of each device. This calculator also takes system condition inputs from users such as common-mode voltage, supply voltage, shunt resistor (...)
Supported products & hardware

Supported products & hardware

Products
Analog current-sense amplifiers
INA138 2.7 to 36V, 800kHz Variable gain current sense amplifier INA138-Q1 AEC-Q100, 2.7 to 36V, 800kHz Variable gain current sense amplifier INA139 2.7 to 36V, 440kHz Variable gain current sense amplifier INA139-Q1 AEC-Q100, 2.7 to 36V, 440kHz Variable gain current sense amplifier INA168 2.7 to 60V, 800kHz Variable gain current sense amplifier INA168-Q1 AEC-Q100, 2.7 to 60V, 800kHz Variable gain current sense amplifier INA169 2.7 to 60V, 440kHz Variable gain current sense amplifier INA169-Q1 AEC-Q100, 2.7 to 60V, 440kHz Variable gain current sense amplifier INA170 2.7 to 60V, bi-directional, 400kHz Variable gain current sense amplifier INA180 26V, 350kHz current sense amplifier INA180-Q1 AEC-Q100, 26V, 350kHz current sense amplifier INA181 26-V bi-directional 350-kHz current-sense amplifier INA181-Q1 AEC-Q100, 26V, bi-directional, 350kHz current sense amplifier INA183 2.7-V to 26-V, high-precision current sense amplifier with input supply INA185 26-V, 350-kHz, bi-directional, high-precision current sense amplifier in ultra-small SOT-563 package INA186 40-V, bidirectional, high-precision current sense amplifier with picoamp input bias & ENABLE INA186-Q1 AEC-Q100, 40-V, bidirectional, high-precision current sense amplifier w/ picoamp input bias & ENABLE INA190 40-V, bidirectional, ultraprecise current sense amplifier with picoamp IB & ENABLE INA190-Q1 AEC-Q100, 40V, bi-directional, ultra-precise current sense amplifier w/picoamp IB & ENABLE INA191 40V, ultra-precise current sense amplifier with ENABLE and picoamp IB in WCSP INA193 -16 to 80V, 500kHz current sense amplifier INA193A-EP Enhanced product, -16 to 80V, 500-kHz current sense amplifier INA193A-Q1 AEC-Q100, -16 to 80V, 500kHz current sense amplifier INA194 -16 to 80V, 500kHz current sense amplifier INA194A-Q1 AEC-Q100, -16 to 80V, 500kHz current sense amplifier INA195 -16 to 80V, 500kHz current sense amplifier INA195A-Q1 AEC-Q100, -16 to 80V, 500kHz current sense amplifier INA196 -16 to 80V, 500kHz current sense amplifier INA196A-Q1 AEC-Q100, -16 to 80V, 500kHz current sense amplifier INA197 -16 to 80V, 500kHz current sense amplifier INA197A-Q1 AEC-Q100, -16 to 80V, 500kHz current sense amplifier INA198 -16 to 80V, 500kHz current sense amplifier INA198A-Q1 AEC-Q100, -16 to 80V, 500kHz current sense amplifier INA199 26V, bi-directional current sense amplifier INA199-Q1 AEC-Q100, 26V, bi-directional current sense amplifier INA200 -16 to 80V, 500kHz current sense amplifier w/ comparator INA200-Q1 AEC-Q100, -16 to 80V, 500kHz current sense amplifier w/ comparator INA201 -16 to 80V, 500kHz current sense amplifier w/ comparator INA201-Q1 AEC-Q100, -16 to 80V, 500kHz current sense amplifier w/ comparator INA202 -16 to 80V, 500kHz current sense amplifier w/ comparator INA202-Q1 AEC-Q100, -16 to 80V, 500kHz current sense amplifier w/ comparator INA203 -16 to 80V, 500kHz current sense amplifier w/ dual comparators INA203-Q1 AEC-Q100, -16 to 80V, 500kHz current sense amplifier w/ dual comparators INA204 -16 to 80V, 500kHz current sense amplifier w/ dual comparators INA205 -16 to 80V, 500kHz current sense amplifier w/ dual comparators INA206 -16 to 80V, 500kHz current sense amplifier w/ window comparator INA207 -16 to 80V, 500kHz current sense amplifier w/ window comparator INA208 -16 to 80V, 500kHz current sense amplifier w/ window comparator INA210 26V, bi-directional, high-precision current sense amplifier INA210-Q1 AEC-Q100, 26V, bi-directional, high-precision current sense amplifier INA211 26V, bi-directional, high-precision current sense amplifier INA211-Q1 AEC-Q100, 26V, bi-directional, high-precision current sense amplifier INA212 26V, bi-directional, high-precision current sense amplifier INA212-Q1 AEC-Q100, 26V, bi-directional, high-precision current sense amplifier INA213 26V, bi-directional, high-precision current sense amplifier INA213-Q1 AEC-Q100, 26V, bi-directional, high-precision current sense amplifier INA214 26V, bi-directional, high-precision current sense amplifier INA214-Q1 AEC-Q100, 26V, bi-directional, high-precision current sense amplifier INA215 26V, bi-directional, high-precision current sense amplifier INA215-Q1 AEC-Q100, 26V, bi-directional, high-precision current sense amplifier INA216 1.8 to 5.5V, high-precision current sense amplifier in wcsp INA2180 26V, dual channel, 350kHz current sense amplifier INA2180-Q1 AEC-Q100, 26V, dual channel, 350kHz current sense amplifier INA2181 26V, dual channel, bi-directional, 350kHz current sense amplifier INA2181-Q1 AEC-Q100, 26V, dual channel, bi-directional, 350kHz current sense amplifier INA2191 40-V, dual-channel, bidirectional, ultraprecise current sense amp w/ picoamp IB & ENABLE in wcsp INA223 26V, programmable-gain current sense amplifier & analog power monitor INA225 36V, bi-directional current sense amplifier w/ four pin-selectable gain settings INA225-Q1 AEC-Q100, 36V, bi-directional current sense amplifier w/ four pin-selectable gain settings INA2290 Dual-channel, 2.7-V to 120-V, 1.1-MHz, ultra-precise current sense amplifier INA240 -4 to 80V, bidirectional, ultra-precise current sense amplifier with enhanced PWM rejection INA240-Q1 AEC-Q100, -4 to 80V, bi-directional, ultra-precise current sense amplifier w/ enhanced pwm rejection INA240-SEP -4 to 80V, ultra-precise current sense amplifier w/ enhanced pwm rejection in space enhanced plastic INA241A -5-V to 110-V bidirectional ultraprecise current sense amplifier with enhanced PWM rejection INA241A-Q1 AEC-Q100, -4-V to 110-V bidirectional ultraprecise current sense amp with enhanced PWM rejection INA241B -5-V to 110-V bidirectional high-precision current sense amplifier with enhanced PWM rejection INA241B-Q1 AEC-Q100, -4-V to 110-V bidirectional high-precision current sense amp with enhanced PWM rejection INA270 -16 to 80V, split-stage current sense amplifier w/ in-line filter capability INA270A-Q1 AEC-Q100, -16 to 80V, split-stage current sense amplifier w/ in-line filter capability INA271 -16 to 80V, split-stage current sense amplifier w/ in-line filter capability INA271-HT High temp, -16 to 80V, split-stage current sense amplifier w/ in-line filter capability INA271A-Q1 AEC-Q100, -16 to 80V, split-stage current sense amplifier w/ in-line filter capability INA280 2.7-V to 120-V, 1.1-MHz, high-precision current sense amplifier in small (SC-70) package INA280-Q1 AEC-Q100, 2.7-V to 120-V, 1.1-Mhz current sense amplifier in small (SC-70) package INA281 -4-V to 110-V, 1.3-MHz, high-precision current sense amplifier INA281-Q1 AEC-Q100, -4-V to 110-V, 1.3-MHz current sense amplifier INA282 -14 to 80V, bi-directional current sense amplifier INA282-Q1 AEC-Q100, -14 to 80V, bi-directional current sense amplifier INA283 -14 to 80V, bi-directional current sense amplifier INA283-Q1 AEC-Q100, -14 to 80V, bi-directional current sense amplifier INA284 -14 to 80V, bi-directional current sense amplifier INA284-Q1 AEC-Q100, -14 to 80V, bi-directional current sense amplifier INA285 -14 to 80V, bi-directional current sense amplifier INA285-Q1 AEC-Q100, -14 to 80V, bi-directional current sense amplifier INA286 -14 to 80V, bi-directional current sense amplifier INA286-Q1 AEC-Q100, -14 to 80V, bi-directional current sense amplifier INA290 2.7 to 120V, 1.1MHz, ultra-precise current sense amplifier in small (SC-70) package INA290-Q1 AEC-Q100, 2.7-V to 120-V, 1.1-MHz, ultra-precise current sense amplifier in small (SC-70) package INA293 -4-V to 110-V, 1.3-MHz, ultra-precise current sense amplifier INA293-Q1 AEC-Q100, -4-V to 110-V, 1.3-MHz, ultra-precise current sense amplifier INA296A -5-V to 110-V, bidirectional, 1.1-MHz 8-V/µs ultraprecise current sense amplifier INA296A-Q1 AEC-Q100, -5-V to 110-V, bidirectional, 1.1-MHz 8-V/µs ultraprecise current sense amplifier INA296B -5-V to 110-V, bidirectional, 1.1-MHz 8-V/µs high-precision current sense amplifier INA296B-Q1 AEC-Q100, -5-V to 110-V, bidirectional, 1.1-MHz 8-V/µs high-precision current sense amplifier INA300 36V current sense comparator INA300-Q1 AEC-Q100, 36V current sense comparator INA301 36V, 550kHz, 4V/µs, high-precision current sense amplifier w/ comparator INA301-Q1 AEC-Q100, 36V, 550kHz, 4V/µs, high-precision current sense amplifier w/ comparator INA302 36V, bi-directional, 550kHz, 4V/µs, high-precision current sense amplifier w/ dual comparators INA302-Q1 AEC-Q100, 36V, bi-directional, 550kHz, 4V/µs, high-precision current sense amp w/ dual comparators INA303 36V, bi-directional, 550kHz, 4V/µs, high-precision current sense amplifier w/ window comparator INA303-Q1 AEC-Q100, 36V, bi-directional, 550kHz, 4V/µs, high-precision current sense amp w/ window comparator INA381 26-V, 350-kHz current sense amplifier with integrated over-current comparator INA381-Q1 AEC-Q100, 26-V, 350-kHz current sense amplifier with integrated overcurrent comparator INA4180 26V, quad channel, 350kHz current sense amplifier INA4180-Q1 AEC-Q100, 26V, quad channel, 350kHz current sense amplifier INA4181 26V, quad channel, bi-directional, 350kHz current sense amplifier INA4181-Q1 AEC-Q100, 26V, quad channel, bi-directional, 350kHz current sense amplifier INA4290 Quad-channel, 120-V, high-voltage, high-bandwidth, unidirectional current sense amplifier INA901-SP Radiation hardened, -15-V to 65-V, split-stage current sense amplifier with in-line filter option LMP8278Q-Q1 AEC-Q100, -2 to 40V, split-stage current sense amplifier w/ in-line filter capability LMP8480 4 to 76V current sense amplifier LMP8480-Q1 AEC-Q100, 4 to 76V current sense amplifier LMP8481 4 to 76V, bi-directional current sense amplifier LMP8481-Q1 AEC-Q100, 4 to 76V, bi-directional current sense amplifier LMP8601 -22 to 60V, bi-directional current sense amplifier w/ in-line filter capability LMP8601-Q1 AEC-Q100, -22 to 60V, bi-directional current sense amplifier w/ in-line filter capability LMP8602 -22 to 60V, bi-directional current sense amplifier w/ in-line filter capability LMP8602-Q1 AEC-Q100, -22 to 60V, bi-directional current sense amplifier w/ in-line filter capability LMP8603 -22 to 60V, bi-directional current sense amplifier w/ in-line filter capability LMP8603-Q1 AEC-Q100, -22 to 60V, bi-directional current sense amplifier w/ in-line filter capability LMP8640 -2 to 42V, 950kHz current sense amplifier LMP8640-Q1 AEC-Q100, -2 to 42V, 950kHz current sense amplifier LMP8640HV -2 to 76V, 950kHz current sense amplifier LMP8645 -2 to 42V, 990kHz, configurable gain current sense amplifier LMP8645HV -2 to 76V, 990kHz, configurable gain current sense amplifier LMP8646 -2 to 76V, configurable gain and bandwidth, high-speed current limiter
Analog current-sense amplifiers with integrated shunt resistor
INA250 36V, bi-directional, precision current sense amplifier w/int. shunt resistor INA250-Q1 AEC-Q100, 36V, bi-directional, precision current sense amplifier w/int. shunt resistor INA253 80V, bi-directional, precision current sense amp w/pwm rejection & int. shunt resistor INA253-Q1 AEC-Q100, 80V, bi-directional, precision current sense amp w/pwm rejection & int. shunt resistor
Digital power monitors
INA209 26V, 12-bit, i2c output current/voltage/power monitor w/ analog comparator INA219 26-V 12-bit I2C output digital power monitor INA220 26V, 12-bit, i2c output current/voltage/power monitor INA220-Q1 AEC-Q100, 26V, 12-bit, i2c output current/voltage/power monitor INA226 36V, 16-bit, ultra-precise i2c output current/voltage/power monitor w/alert INA226-Q1 AEC-Q100, 36V, 16-bit, ultra-precise, i2c output current/voltage/power monitor w/alert INA228 85-V, 20-bit, ultra-precise, I2C output current/voltage/power/energy/charge monitor with alert INA228-Q1 AEC-Q100, 85-V, 20-bit, ultraprecise, I²C output current/voltage/power/energy/charge monitor INA229 85-V, 20-bit, ultra-precise, SPI output current/voltage/power/energy/charge monitor with alert INA229-Q1 AEC-Q100, 85-V, 20-bit, ultraprecise, SPI output current/voltage/power/energy/charge monitor INA230 36-V, 16-bit, I²C output current, voltage and power monitor with alert INA231 28V, 16-bit, i2c output current/voltage/power monitor w/alert in wcsp INA233 36V, 16-bit, ultra-precise i2c & pmbus output current/voltage/power/energy monitor w/alert INA234 28-V, 12-bit, I²C output current/voltage/power monitor with alert in WCSP INA236 48-V, 16-bit ultraprecise I²C output digital power monitor with alert in WCSP INA237 85-V, 16-bit, I2C output current/voltage/power monitor with alert INA237-Q1 AEC-Q100, 85-V, 16-bit, I²C output current/voltage/charge monitor INA238 85-V, 16-bit, high-precision I2C output current/voltage/power monitor with alert INA238-Q1 AEC-Q100, 85-V, 16-bit, high-precision, I²C output current/voltage/charge monitor INA239 85-V, 16-bit, high-precision, SPI output current/voltage/power monitor with alert INA239-Q1 AEC-Q100, 85-V, 16-bit, high-precision, SPI output current/voltage/power monitor INA3221 26V, triple channel, 13-bit, i2c output current/voltage monitor w/alerts INA3221-Q1 AEC-Q100, 26V, triple channel, 13-bit, i2c output current/voltage monitor w/alerts LMP92064 2V, 12-bit, fast simultaneous sampling SPI output current/voltage monitor
Design tool

CIRCUIT060035 — Bidirectional current sensing with a window comparator circuit

This bidirectional current sensing solution uses a current-sense amplifier and a high-speed dual comparator with a rail-to-rail input common mode range to create over-current (OC) alert signals at the comparator outputs (OUTA and OUTB) if the input current (IG1) rises above 100 A or falls below (...)
Design tool

CIRCUIT060037 — Precision over-current latch circuit

This high-side, current sensing solution uses a current sense amplifier, a comparator with an integrated reference and a P-channel MOSFET to create an over-current latch circuit. When a load current greater than 200 mA is detected, the circuit disconnects the system from its power source. The (...)
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Simulation tool

TINA-TI — SPICE-based analog simulation program

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 (...)
User guide: PDF
Reference designs

TIDA-01543 — Isolated Current Sense Reference Design (±300 A) for Traction Inverter With Overcurrent Detection

This reference design provides detection of traction motor phase currents. TIDA-01543 realizes an isolated current sensor. Precise in-line huntbased, motor phase current sensing is done with AMC1305M05-Q1 delta-sigma (ΔΣ) modulators and the INA301-Q1 device. The high CMTI of the (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00302 — Current Shunt Monitor with Transient Robustness Reference Design

This high-side current shunt monitor is used to measure the voltage developed across a current-sensing resistor when current passes through it.

Additionally, an external protection circuit is implemented to provide surge and fast-transient protection and demonstrate the different immunity levels to (...)

Design guide: PDF
Schematic: PDF
Package Pins Download
VSSOP (DGK) 8 View options

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