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INA300

AKTIV

Stromsensor-Komparator, 36 V

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Datenblatt

INA300

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Product type Analog output with integrated comparator Common-mode voltage (max) (V) 36 Common-mode voltage (min) (V) 0 Input offset (±) (max) (µV) 650 Input offset drift (±) (typ) (µV/°C) 0.1 Features Alert Function, Low-side Capable Rating Catalog CMRR (min) (dB) 100 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.15 Number of channels 1 Comparators (#) 1 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) 650 Input offset drift (±) (typ) (µV/°C) 0.1 Features Alert Function, Low-side Capable Rating Catalog CMRR (min) (dB) 100 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.15 Number of channels 1 Comparators (#) 1 Operating temperature range (°C) -40 to 125
VSSOP (DGS) 10 14.7 mm² 3 x 4.9 WSON (DSQ) 10 4 mm² 2 x 2
  • Wide Common-Mode Range: 0 V to 36 V
  • Selectable Response Times:
    • 10 µs, 50 µs, 100 µs
  • Programmable Threshold:
    • Adjust Using Single Resistor
    • Programmable From 0 mV to 250 mV
  • Accuracy:
    • Offset Voltage: ±500 µV (Maximum)
    • Offset Voltage Drift: 0.5 µV/°C (Maximum)
  • Selectable Hysteresis:
    • 2 mV, 4 mV, 8 mV
  • Active Quiescent Current: 135 µA (Maximum)
  • Selectable Disable Mode
    • Disabled Quiescent Current: 3.5 µA (Maximum)
    • Disabled Input Bias Current: 500 nA (Maximum)
  • Open-Drain Output With Latch Mode Available
  • Wide Common-Mode Range: 0 V to 36 V
  • Selectable Response Times:
    • 10 µs, 50 µs, 100 µs
  • Programmable Threshold:
    • Adjust Using Single Resistor
    • Programmable From 0 mV to 250 mV
  • Accuracy:
    • Offset Voltage: ±500 µV (Maximum)
    • Offset Voltage Drift: 0.5 µV/°C (Maximum)
  • Selectable Hysteresis:
    • 2 mV, 4 mV, 8 mV
  • Active Quiescent Current: 135 µA (Maximum)
  • Selectable Disable Mode
    • Disabled Quiescent Current: 3.5 µA (Maximum)
    • Disabled Input Bias Current: 500 nA (Maximum)
  • Open-Drain Output With Latch Mode Available

Designed for overcurrent protection applications, the INA300 is a current-sensing comparator that detects overcurrent by measuring the voltage developed across a shunt resistor, and comparing that voltage to the threshold voltage input level. The device measures this differential voltage signal on common-mode voltages that can vary from 0 V up to 36 V, independent of the supply voltage. The INA300 device features an adjustable threshold range that is set using a single external limit-setting resistor. A selectable hysteresis feature enables adjustable operation of the comparator to accommodate the wide input signal range of 0 mV to 250 mV.

An open-drain alert output on the device 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 cleared. The device response time setting is selectable, which enables overcurrent alerts to be issued in as fast as 10 µs.

The INA300 device operates from a single 2.7-V to 5.5-V supply, drawing a maximum supply current of 135 µA. The INA300 device is specified over the extended operating temperature range of –40°C to +125°C, and is available in WSON-10 and VSSOP-10 packages.

Designed for overcurrent protection applications, the INA300 is a current-sensing comparator that detects overcurrent by measuring the voltage developed across a shunt resistor, and comparing that voltage to the threshold voltage input level. The device measures this differential voltage signal on common-mode voltages that can vary from 0 V up to 36 V, independent of the supply voltage. The INA300 device features an adjustable threshold range that is set using a single external limit-setting resistor. A selectable hysteresis feature enables adjustable operation of the comparator to accommodate the wide input signal range of 0 mV to 250 mV.

An open-drain alert output on the device 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 cleared. The device response time setting is selectable, which enables overcurrent alerts to be issued in as fast as 10 µs.

The INA300 device operates from a single 2.7-V to 5.5-V supply, drawing a maximum supply current of 135 µA. The INA300 device is specified over the extended operating temperature range of –40°C to +125°C, and is available in WSON-10 and VSSOP-10 packages.
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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Datum
* Data sheet INA300 Overcurrent-Protection, Current-Sense Comparator datasheet (Rev. C) 18 Jun 2021
Application note Risks and Prevention of ESD, EOS, and Latch Up Events for Current Sense Amplifiers PDF | HTML 18 Nov 2024
E-book An Engineer's Guide to Current Sensing (Rev. B) 12 Apr 2022
Application brief Measuring Current To Detect Out-of-Range Conditions (Rev. D) PDF | HTML 10 Mär 2022
Application note Using a PCB Copper Trace as a Current-Sense Shunt Resistor PDF | HTML 25 Jan 2022
Application brief Measuring Current for Handle Multiple Out-of-Range Conditions (Rev. C) PDF | HTML 04 Okt 2021
Selection guide Current Sense Amplifiers (Rev. E) 20 Sep 2021
Application brief Bidirectional, Low-Side Phase Current Sensing With Onboard Overcurrent Detection (Rev. D) 06 Mär 2019
Circuit design Overcurrent event detection circuit 31 Jul 2018
Application brief 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 Mai 2016
Technical article How to get started with current sense amplifiers – part 3 PDF | HTML 09 Jul 2015
Technical article What are you sensing? Re-thinking system efficiency and reliability - part 1 PDF | HTML 27 Mai 2015
Technical article How to get started with current sense amplifiers – part 2 PDF | HTML 26 Mai 2015
More literature Over-Current Detection Products Brochure 14 Aug 2014

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