ADP1051:  Digital Controller for Isolated Power Supply with PMBus Interface

Product Details

Product Status:Recommended for New Designs

The ADP1051 is an advanced digital controller with a PMBusTM interface targeting high density, high efficiency dc-to-dc power conversion. This controller implements voltage mode control with high speed, input line feedforward for enhanced transient and improved noise performance. The ADP1051 has six programmable pulse-width modulation (PWM) outputs capable of controlling most high efficiency power supply topologies, with added control of synchronous rectification (SR). The device includes adaptive dead time compensation to improve efficiency over the load range, and programmable light load mode operation, combined with low power consumption, to reduce system standby power losses.

The ADP1051 implements several features to enable a robust system of parallel and redundant operation for customers that require high availability or parallel connection. The device provides synchronization, reverse current protection, pre-bias startup, accurate current sharing between power supplies, and conditional overvoltage techniques to identify and safely shut down an erroneous power supply in parallel operation mode.

The ADP1051 is based on flexible state machine architecture and is programmed using an intuitive GUI. The easy to use interface reduces design cycle time and results in a robust, hardware coded system loaded into the built-in EEPROM. The small size (4 mm × 4 mm) LFCSP package makes the ADP1051 ideal for ultracompact, isolated dc-to-dc power module or embedded power designs.

APPLICATIONS
  • High density, isolated DC/DC power supplies
    Intermediate bus converters
    High availability parallel power systems
  • Server, storage, industrial, networking, and communications infrastructure

FEATURES and BENEFITS

  • Versatile, digital voltage mode controller
  • High speed, input voltage feedforward control
  • 6 pulse-width modulation (PWM) logic outputs with 625 ps resolution
  • Switching frequency:
    49 kHz to 625 kHz
  • Frequency synchronization as master and slave device
  • Multiple energy saving modes
  • Adaptive dead time compensation for efficiency optimization
  • Low device power consumption: 100 mW typical
  • See datasheet for additional features

Typical Applications Circuit Diagram for ADP1051

Design Tools,Models,Drivers & Software

Title Content Type File Type
ADP1050-51 Evaluation Software
This software is used to program the ADP1050-51. It is truly graphic and interactive. Power design engineers with no prior programming experience can use the software to monitor and quickly adjust functions like PWM timings, frequency, filter settings, protection limits, etc.
Evaluation Software HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

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Price, packaging, availability

ADP1051 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADP1051ACPZ-R7 Status: Production LFCSP:LEADFRM CHIP SCALE 24 Ind Reel, 1500 - $3.90 Y  Material Info PCN Purchase Sample
ADP1051ACPZ-RL Status: Production LFCSP:LEADFRM CHIP SCALE 24 Ind Reel, 5000 - $3.90 Y  Material Info PCN Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADP1051 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADP-I2C-USB-Z Status: Production USB to I2C Adapter $250.00 Yes -
ADP1051-240-EVALZ Status: Production ADP1051 240W Evaluation Board $300.00 Yes -
ADP1051DC1-EVALZ Status: Production ADP1051 Daughter Card $100.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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