Powrót do: Monolithic Power Systems (MPS)

Monolithic Power Systems (MPS) EVQ8875A-VE-00A Evaluation Board

Monolithic Power Systems (MPS) EVQ8875A-VE-00A Evaluation Board is designed to demonstrate the capabilities of the MPQ8875A. The MPQ8875A is a 36V, monolithic, synchronous DC/DC buck-boost converter. The device's wide 2.2V to 36V input voltage range is ideal for multi-purpose automotive and industrial applications. Constant-on-time (COT) control and the integrated quad-switch configuration allow the MPQ8875A to flexibly change between the buck, boost, and buck-boost topologies.

Features

  • Wide 2.2V to 36V operating input range
  • Up to 5A continuous output current
  • <25μA shutdown current
  • 180μA quiescent current when VIN = 12V
  • Single-channel, quad-switch, synchronous
  • Buck-boost configuration
    • 10mΩ internal buck HS-FET
    • 10mΩ internal boost LS-FET
    • 25mΩ internal boost High-Side (HS)
    • Synchronous rectifier
    • 25mΩ internal buck Low-Side (LS)
  • Synchronous rectifier
  • COT control for seamless transitions
  • Internal soft-start (SS)
  • Smart power good (PG) output
  • Optimized for efficiency and EMI performance
    • 200kHz to 1MHz configurable switching frequency (fSW)
    • 250kHz to 1MHz synchronized fSW
    • Frequency spread spectrum
    • Configurable switching speed
  • Protection features
    • Cycle-by-cycle current limiting
    • Over-Current Protection (OCP)
    • Configurable input UVLO
    • Output Over-Voltage Protection (OVP)
    • Input OVP
    • Output Short-Circuit Protection (SCP)
    • Over-Temperature Protection (OTP)
  • Standard, Configurable via I2C Interface
    • Converter On/Off
    • Input range selection
    • 0.5V to 30V output range for forced
    • Continuous Conduction Mode (FCCM)
    • 5V to 30V output range for Discontinuous Conduction Mode (DCM)
    • Synchronized input and output
    • Switching slew rate
    • fSW
    • Frequency spread spectrum
    • Compensation network
    • Ramp compensation
    • Soft-start time
    • Dynamic VOUT with slew rate control
    • DCM and FCCM
    • COT control for boost switch in buck-boost mode
    • Input and output OVP
    • Cycle-by-cycle current limit threshold
    • Reverse current limit threshold
    • OCP
    • Output SCP
    • Thermal protection
    • PG threshold
    • Junction temperature reading
  • One-time programmable (OTP) default parameter
  • Available in a QFN-34 (4mmx5mm) package
  • Available in a Wettable Flank package
  • Available in AEC-Q100 Grade 1

Applications

  • Sensor fusion systems
  • Camera monitoring systems
  • Infotainment systems
  • Automotive applications

Design Resources

Opublikowano: 2022-02-24 | Zaktualizowano: 2022-03-11