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Analog Front-End (AFE) With Digital Monitoring and Configuration

Combine the Speed of an Analog Controller with the Flexibility of a Digital Microcontroller

Our AFE products, formerly known as Digitally Enhanced Power Analog (DEPA) products, feature analog control loops with digital oversight using analog references, amplifiers and Pulse-Width Modulation (PWM) generators to regulate an output, while configuring, monitoring, measuring and dynamically adjusting that performance with an embedded microcontroller (MCU). This allows the system to report telemetry; make operating adjustments on the fly and respond to faults with customized, application-specific code. Without this added integration, flexible robust designs could require separate chips to regulate the output, adjust the regulator operation, measure the results and communicate the information outside the system. These AFE controllers make it easy to create compact, efficient and flexible power supplies.

Key Features:

  • Measure the environment: Including input voltage, output voltage, current, temperature, external reference or control signals
  • Respond to the environment: Dynamically adjust output voltages, currents, limit conditions or signaling other devices
  • Intelligently handle problems: Customize fault, brownout, and over- and under-voltage responses to create predictable system behavior
  • Manage system power: Sequence start and shutdown throughout a board for robust operation across all operating conditions
  • Communicate: Using dedicated output pins or digital interfaces, with standard or proprietary messaging schemes

Primary Applications

  • Smart lighting
  • Automotive LED headlights
  • AC-DC converters
  • Battery management
  • Consumer and portable electronics
  • DC-AC inverters
  • Embedded and Point-of-Load (PoL) conversion
  • Energy storage
  • Merchant power supplies

Recommended for New Designs

MCP19061

Synchronous Four-Switch Buck-Boost Architecture

  • Wide operating voltage range of 4.5V to 42V
  • Adjustable output range of 3V to 36V
  • Fully configurable:
    • Configurable protections for input and output overcurrent, input over/under voltage, output over/under voltage, load dump, overtemperature and internal regulator fault
    • Configurable output for constant current operation and constant voltage operation
    • Adjustable frequency
    • Dynamically configurable by I2C
  • AEC-Q100 automotive qualified

MCP19124

Flyback, Boost, SEPIC and Cuk DC-DC Converters

  • Wide operating voltage range of 4.5V to 42V
  • Smooth, dynamic transitions from constant-current to constant-voltage operation using control loop architecture
  • Analog peak-current mode Pulse-Width Modulation (PWM) control
  • Configurable parameters:
    • Adjustable output voltage
    • Output current
    • MOSFET deadtime
    • Leading-edge blanking time
    • Thermal responses
    • Slope compensation
    • Overcurrent protection
    • Over- and under-voltage lockout levels
       

MCP19119

Buck With Integrated Synchronous Driver

  • Wide operating voltage range of 4.5V to 40V
  • Output voltage range of 0.5V to 3.6V
  • Configurable parameters:
    • Overcurrent limit
    • Input undervoltage lockout
    • Output overvoltage
    • Output undervoltage
    • Internal analog compensation
    • Soft-Start profile
    • Synchronous Driver Dead Time (DDT)
    • Switching frequency

Analog Front-End + Digital MCU Products

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Design Resources

MPLAB® Analog Designer

Provides design suggestions for common circuit needs, estimates performance for common modifications, and can export to MPLAB® Mindi™ Analog Simulator for verification.

MPLAB Mindi™ Analog Simulator

Uses a SIMetrix/SIMPLIS environment to model circuit behavior, reducing design time with software debugging for initial design verification.

MicroCHECK Design Service

Our complimentary* MicroCHECK design review service, which offers insight from the initial concept to the final PCB layout, is available to customers who are using our products in their projects.