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
|Title||Content Type||File Type|
|ADP1051: Digital Controller for Isolated Power Supply with PMBus Interface Data Sheet (Rev A, 06/2014) (pdf, 778 kB)||Data Sheets|
|AN-1306: ADP1050 and ADP1051 EEPROM Programming and Calibration in the Power Supply Manufacturing Environment (pdf, 470 kB)||Application Notes|
ADuM3190 (Isolated Error Amp) & ADP1051 (Digital Controller)
This video features the isolated error amplifier ADuM3190 board and the demo board of the ADP1051 digital isolated DC to DC converter board.
|UG-566: 240 W Evaluation Board Kit for the ADP1051, Digital Controller for Isolated Power Supply with PMBus Interface (pdf, 3114 kB)||User Guides|
|Using the ADP1051 Eighth Brick Power Module Reference Design (Wiki Site)||Power Reference Designs||HTML|
|Analog Devices’ Next Generation of Digital Power Controllers with PMBus Interface Targets Highest Density, Energy Efficient Isolated Power Converters (18 Mar 2013)||Press Releases||HTML|
|Glossary of EE Terms||Glossary||HTML|
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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.
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.