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INA281-Q1

ACTIVE

AEC-Q100, -4-V to 110-V, 1.3-MHz current sense amplifier

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Data sheet

INA281-Q1

ACTIVE
Data sheet Order now

Product details

Product type Analog output Common-mode voltage (max) (V) 110 Common-mode voltage (min) (V) -4 Input offset (±) (max) (µV) 150, 200, 250, 300, 500 Input offset drift (±) (typ) (µV/°C) 0.07 Voltage gain (V/V) 20, 50, 100, 200, 500 CMRR (min) (dB) 120 Bandwidth (kHz) 900, 1000, 1300 Supply voltage (max) (V) 20 Supply voltage (min) (V) 2.7 Iq (max) (mA) 2.25 Number of channels 1 Comparators (#) 0 Gain error (%) 0.5 Gain error drift (±) (max) (ppm/°C) 20 Slew rate (V/µs) 2.5 Features 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 Common-mode voltage (max) (V) 110 Common-mode voltage (min) (V) -4 Input offset (±) (max) (µV) 150, 200, 250, 300, 500 Input offset drift (±) (typ) (µV/°C) 0.07 Voltage gain (V/V) 20, 50, 100, 200, 500 CMRR (min) (dB) 120 Bandwidth (kHz) 900, 1000, 1300 Supply voltage (max) (V) 20 Supply voltage (min) (V) 2.7 Iq (max) (mA) 2.25 Number of channels 1 Comparators (#) 0 Gain error (%) 0.5 Gain error drift (±) (max) (ppm/°C) 20 Slew rate (V/µs) 2.5 Features High precision, Low-side Capable Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40 °C to +125 °C, TA
  • Functional Safety-Capable
  • Wide common-mode voltage:
    • Operational voltage: −4 V to +110 V
    • Survival voltage: −20 V to +120 V
  • Excellent CMRR:
    • 120-dB DC CMRR
    • 65-dB AC CMRR at 50 kHz
  • Accuracy:
    • Gain:
      • Gain error: ±0.5% (maximum)
      • Gain drift: ±20 ppm/°C (maximum)
    • Offset:
      • Offset voltage: ±55 µV (typical)
      • Offset drift: ±0.1 µV/°C (typical)
  • Available gains:
    • INA281A1-Q1, INA281B1-Q1 : 20 V/V
    • INA281A2-Q1, INA281B2-Q1 : 50 V/V
    • INA281A3-Q1, INA281B3-Q1 : 100 V/V
    • INA281A4-Q1, INA281B4-Q1 : 200 V/V
    • INA281A5-Q1, INA281B5-Q1 : 500 V/V
  • High bandwidth: 1.3 MHz
  • Slew rate: 2.5V/µs
  • Quiescent current: 1.5 mA
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40 °C to +125 °C, TA
  • Functional Safety-Capable
  • Wide common-mode voltage:
    • Operational voltage: −4 V to +110 V
    • Survival voltage: −20 V to +120 V
  • Excellent CMRR:
    • 120-dB DC CMRR
    • 65-dB AC CMRR at 50 kHz
  • Accuracy:
    • Gain:
      • Gain error: ±0.5% (maximum)
      • Gain drift: ±20 ppm/°C (maximum)
    • Offset:
      • Offset voltage: ±55 µV (typical)
      • Offset drift: ±0.1 µV/°C (typical)
  • Available gains:
    • INA281A1-Q1, INA281B1-Q1 : 20 V/V
    • INA281A2-Q1, INA281B2-Q1 : 50 V/V
    • INA281A3-Q1, INA281B3-Q1 : 100 V/V
    • INA281A4-Q1, INA281B4-Q1 : 200 V/V
    • INA281A5-Q1, INA281B5-Q1 : 500 V/V
  • High bandwidth: 1.3 MHz
  • Slew rate: 2.5V/µs
  • Quiescent current: 1.5 mA

The INA281-Q1 is a high-precision current sense amplifier that can measure voltage drops across shunt resistors over a wide common-mode range from –4 V to 110 V. The negative common-mode voltage allows the device to operate below ground, thus accommodating precise measurement of recirculating currents in half-bridge applications. The combination of a low offset voltage, small gain error and high DC CMRR enables highly accurate current measurement. The INA281-Q1 is not only designed for DC current measurement, but also for high-speed applications (like fast overcurrent protection, for example) with a high bandwidth of 1.3 MHz and an 65-dB AC CMRR (at 50 kHz).

The INA281-Q1 operates from a single 2.7-V to 20-V supply, drawing 1.5 mA of supply current. The INA281-Q1 is available with five gain options: 20 V/V, 50 V/V, 100 V/V, 200 V/V, and 500 V/V. These gain options address wide dynamic range for current-sensing applications.

The INA281-Q1 is specified over an operating temperature range of −40 °C to +125 °C and is offered in a space-saving SOT-23 package with two pin-out variants.

The INA281-Q1 is a high-precision current sense amplifier that can measure voltage drops across shunt resistors over a wide common-mode range from –4 V to 110 V. The negative common-mode voltage allows the device to operate below ground, thus accommodating precise measurement of recirculating currents in half-bridge applications. The combination of a low offset voltage, small gain error and high DC CMRR enables highly accurate current measurement. The INA281-Q1 is not only designed for DC current measurement, but also for high-speed applications (like fast overcurrent protection, for example) with a high bandwidth of 1.3 MHz and an 65-dB AC CMRR (at 50 kHz).

The INA281-Q1 operates from a single 2.7-V to 20-V supply, drawing 1.5 mA of supply current. The INA281-Q1 is available with five gain options: 20 V/V, 50 V/V, 100 V/V, 200 V/V, and 500 V/V. These gain options address wide dynamic range for current-sensing applications.

The INA281-Q1 is specified over an operating temperature range of −40 °C to +125 °C and is offered in a space-saving SOT-23 package with two pin-out variants.
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Drop-in replacement with upgraded functionality to the compared device
INA293-Q1 ACTIVE AEC-Q100, -4-V to 110-V, 1.3-MHz, ultra-precise current sense amplifier Functionally identical with increased accuracy.
Same functionality with different pin-out to the compared device
INA280-Q1 ACTIVE AEC-Q100, 2.7-V to 120-V, 1.1-Mhz current sense amplifier in small (SC-70) package Smaller package size with positive voltage support.

Technical documentation

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Type Title Date
* Data sheet INA281-Q1 AEC-Q100, –4-V to 110-V, 1.3-MHz Current-Sense Amplifier datasheet 05 Nov 2020
Application note Current Sensing in an H-Bridge (Rev. D) PDF | HTML 07 Apr 2023
Application note High-Side Drive, High-Side Solenoid Monitor With PWM Rejection (Rev. D) PDF | HTML 15 Aug 2022
Application note Using a PCB Copper Trace as a Current-Sense Shunt Resistor PDF | HTML 25 Jan 2022
Functional safety information INA293-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) 05 Nov 2020

Design & development

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

Evaluation board

INA281EVM — INA281 -4-V to 110-V, 1.3-MHz current sense amplifier evaluation module

This is a small module with 10 completely independent boards that can be broken off by the user. Ten schematically identical boards for each of the five gain variation and two pinout variations of the INA281 with inputs up to 110V common mode and 5A (on board shunt) input capability. Each board (...)
User guide: PDF | HTML
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Simulation model

INA281 TINA-TI Spice Model

SBOMC79.ZIP (110 KB) - TINA-TI Spice Model
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Simulation model

INA281A1 PSpice Model

SBOMC80.ZIP (7 KB) - PSpice Model
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Simulation model

INA281A2 PSpice Model

SBOMC81.ZIP (7 KB) - PSpice Model
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Simulation model

INA281A3 PSpice Model

SBOMC84.ZIP (7 KB) - PSpice Model
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Simulation model

INA281A4 PSpice Model

SBOMC85.ZIP (7 KB) - PSpice Model
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Simulation model

INA281A5 PSpice Model

SBOMC86.ZIP (7 KB) - PSpice Model
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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
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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 (...)
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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 (...)
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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 (...)
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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 (...)
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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
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SOT-23 (DBV) 5 View options
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