INA300 - Texas Instruments

INA300 Current-Sense Comparator

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 commonmode voltages that can vary from 0 V up to 36 V, indepe.

Features

•1 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 (Max)
  – Offset Voltage Drift: 0.5 μV/°C (Max)
• Selectable Hysteresis:
  – 2 mV, 4 mV, 8 mV
• Active Quiescent Current: 135 μA (Max)
• Selectable Disable Mode
  – Disabled Quiescent Current: 3.5 μA (Max)
  – Disabled Input Bias Current: 500 nA (Max)
• Open-Drain Output with Latch Mode Available 2 Applications
• Overcurrent Protection
• Computers
• Servers
• Telecom Equipment
• Power.