MCP6C02 Current Sense Amplifiers

By Microchip Technology 131

MCP6C02 Current Sense Amplifiers

The MCP6C02 device from Microchip Technology is a single high-side current sense amplifier. It is designed specifically to sense the current through a shunt resistor and convert this measurement to a proportional output voltage. The amplifier comes with preset gains of 20 V/V, 50 V/V, and 100 V/V. The input pins can support voltages up to 65 V. The output voltage range is determined by a separate supply pin spanning 2 V to 5.5 V to make it easy to interface to an ADC or MCU that is operating at 2.5 V, 3.3 V, and 5 V. The zero-drift architecture supports very low input errors, which allows a design to use shunt resistors of lower value and lower power dissipation. The rich feature set of the MCP6C02 device makes it suitable for battery monitoring, motor control, and industrial computing applications.

Features
  • Input (common mode) voltages:
    • +3.0 V to +65 V, specified
    • +2.8 V to +68 V, operating
    • -0.3 V to +70 V, survival
  • Power supply: +2.0 V to +5.5 V
  • Bandwidth: 500 kHz (G=20/50), 350 kHz (G=100)
  • On-chip EMI filtering
  • Max input offset:
    • ±16 μV at gain = 20
    • ±14 μV at gain = 50
    • ±12 μV at gain = 100
  • Package: 6-pin SOT-23
  • Extended temperature: -40°C to +125°C
Benefits
  • Zero-drift architecture supports very low input errors and low power dissipation
  • Provides an amplified output voltage proportional to the measured current
  • Reference pin allows for either unidirectional or bidirectional current measurement
Applications
  • Motor control
  • Analog level shifters
  • Industrial computing
  • Battery monitors

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