Monolithic Power Systems (MPS) EVQ79500FS Evaluation Board

Monolithic Power Systems (MPS) EVQ79500FS Evaluation Board showcases the capabilities of the MPQ79500FS 6-channel voltage monitor designed for automotive safety applications. The Monolithic Power Systems (MPS) MPQ79500FS features configurable over-voltage (OV) and under-voltage (UV) thresholds for each input, providing precise high-frequency (HF) and low-frequency (LF) voltage monitoring.

Two inputs support differential remote voltage sensing, and the device can log the sequence and timestamps of voltage rails. A sync I/O function allows monitoring of additional voltage rails, and the device is accessible via an I2C interface.

With advanced functional safety features, the MPQ79500FS supports applications up to ASIL-D and is AEC-Q100-qualified. It is available in a QFN-16 (3mm x 3mm) package with wettable flanks. The EVQ79500FS-Q-00A is fully assembled and tested for immediate use.

Features

  • 2.7V to 5.5V power supply voltage (VDD) range
  • Monitoring input voltage (VINx) range
    • 0.2V to 1.475V no scaling (Bank 1, VRANGE_MULT (0x1F), bits D[x - 1] = 0, where x = 1–6)
    • 0.8V to 5.5V with x4 scaling (Bank 1, VRANGE_MULT (0x1F), bits D[x - 1] = 1, where x = 1–6)
  • 0.9V to 5.5V pull-up voltage (VPU) range 
  • DC (<fLF) voltage measurement accuracy (LF channel) no scaling ±1LSB
  • DC (>fHF) voltage measurement accuracy (HF channel)
    • ±5mV no scaling, VINx < 1V
    • ±0.5% no scaling, VINx > 1V

Applications

  • Automotive safety systems
  • Voltage rail monitoring
  • High-integrity power supply systems
  • Applications requiring ASIL-D compliance
  • Remote voltage sensing
  • Sequence and timestamp logging of voltage rails

Equipment Set-Up

Monolithic Power Systems (MPS) EVQ79500FS Evaluation Board
Published: 2025-01-10 | Updated: 2025-01-30