Microchip’s high-side bidirectional current sensing monitor ICs come in a RoHS compliant DFN package

The PAC1710 from Microchip Technology is a high-side bidirectional current sensing monitor with precision voltage measurement capabilities. The power monitor measures the voltage developed across an external sense resistor to represent the high-side current of a battery or voltage regulator. The PAC1710 also measures the SENSE+ pin voltage and calculates average power over the integration period. The PAC1710 can be programmed to assert the ALERT# pin when high and low limits are exceeded for current sense and bus voltage. It is available in a RoHS compliant 3 mm x 3 mm 10-pin DFN package.

The PAC1710 device is good for measuring dynamic power. The long integration time allows for extending system polling cycles without losing any power consumption information. In addition, the alert ensures that transient events are captured between the polling cycles. These current sensing products are ideal for notebooks, desktop computers, industrial, power management systems, and other embedded applications.

Sample Application


  • High-side current sensor
    • Current measurement is integrated over 2.5 ms to 2.6 sec with up to 11-bit resolution
    • 1% current measurement accuracy in positive range
    • Measures VSOURCE voltage
  • Calculates proportional power
  • VSOURCE voltage range 0 V to 40 V
    • Bidirectional current sensing
  • Auto-zero input offset voltage
  • 3 mm x 3 mm DFN-10 package
  • Digital averaging
    • Adjustable sampling time and resolution
  • 5 µA typical standby current
  • Programmable sense voltage range
    • ±10 mV, ±20 mV, ±40 mV, and ±80 mV
  • Power supply range 3.0 V to 5.5 V
  • Wide temperature operating range: -40°C to +85°C
  • ALERT# output for voltage and current out of limit transients between sampling interval
  • SMBus 2.0 communications interface
    • Address selectable by resistor decode
  • Sample time configurable from 2.5 ms to 320 ms
  • With averaging effective sampling times up to 2.6 sec


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