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Digitally Enhanced Power Analog (DEPA) Hybrid Controllers

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

Digitally Enhanced Power Analog (DEPA) controllers contain 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. DEPA controllers make it easy to create compact, efficient and flexible power supplies.

Power designers get the elegance and performance of an analog PWM controller with the customizability of a digital microcontroller (MCU). DEPA products maintain the fast, efficient analog feedback loop and incorporate an 8-bit PIC® microcontroller. This offers configurability, including the ability to measure and respond to the environment with tailored algorithms, as well as a communication interface for control or diagnostic functions. DEPA products offer more flexibility than any other analog control architecture on the market today. The single-chip solution accepts a high-voltage input (up to 42V) and regulates a wide output current or voltage range (0.3V to 16V without any external components or drivers, for the MCP19123). They offer the tight regulation levels, fast transient responses, high gain and phase margins required in server or telecommunications operation with the robustness and operating ranges required for automotive applications. They add dynamic operational changes, measurements, and diagnostic reporting capabilities to any application.

DEPA Technology Lets You Easily:

  • 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, 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

Key Applications

  • AC-DC converters
  • Automotive
  • Battery management
  • Consumer and portable electronics
  • DC-AC inverters
  • Embedded and Point-of-Load Conversion
  • Energy storage
  • Lighting
  • Merchant power supplies

DEPA Circuit Diagram

Digitally-Enhanced-Power-Analog-(DEPA)-Hybrid-Controllers

DEPA Products

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Recommended for New Designs

MCP19116

Analog Front-End with Digital Control

  • Industry-leading current regulation accuracy for LED or similar system needs
  • Wide operating voltage range: 4.5-42V
  • Integrated 8-Bit PIC® Microcontroller
  • Significant configurability: adjustable output voltage, output current, MOSFET deadtime, leading edge blanking time, thermal responses, slope compensation, over-

MC19124

Analog Front-End with Digital Control

  • Able to dynamically switch between constant-voltage and constant-current regulation
  • Wide operating voltage range: 4.5-42V
  • Integrated 8-Bit PIC® Microcontroller
  • Significant configurability: adjustable output voltage, output current, MOSFET deadtime, leading edge blanking time, thermal responses, slope compensation, over-current protection, over and under voltage lockout levels

MCP19122

Analog Front-End with Digital Control

  • Emulated-average current mode control, perfect for buck topology control
  • Wide Operating Voltage Range: 4.5-40V
  • Integrated 8-Bit PIC® Microcontroller
  • Significant Configurability: Adjustable Analog Compensation, Switching Frequency, UVLO, OVLO, Start-up Behavior, MOSFET Deadtime, Configurable GPIO Pins, Internal Compensation Network, I2C Communication Interface, and fault behavior

MCP19214

Analog Front-End with Digital Control

  • Dual control loops, for bidirectional or independent outputs
  • Wide input operating voltage range: 4.5-42V
  • Integrated 8-Bit PIC® Microcontroller
  • Complete configurability: adjustable output voltage, output current, MOSFET deadtime, leading edge blanking time, thermal responses, slope compensation, over-current protection, over and under voltage lockout levels

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.