ADP1051
Info : RECOMMENDED FOR NEW DESIGNS
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ADP1051

Digital Controller for Isolated Power Supply with PMBus Interface

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 2
1ku List Price Starting From $4.17
Features
  • 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
  • Extensive fault detection and protection
  • PMBus compliant
  • Direct parallel control for power supplies without OR’ing devices
    • Accurate droop current share
    • Pre-bias startup
    • Reverse current protection
    • Conditional overvoltage protection
  • Graphical user interface (GUI) for ease of programming
  • On-board EEPROM for programming and data storage
  • Available in a 24-lead, 4 mm × 4 mm LFCSP
  • −40°C to +125°C operating temperature
Additional Details
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The ADP1051 is an advanced digital controller with a PMBus 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 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.

APPLICATIONS

  • High density, isolated DC/DC power supplies
    Intermediate bus converters
    High availability parallel power systems
  • Server, storage, industrial, networking, and communications infrastructure
Part Models 2
1ku List Price Starting From $4.17

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Documentation

Documentation

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADP1051ACPZ-R7
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ADP1051ACPZ-RL
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Part Models

Product Lifecycle

PCN

Jul 5, 2018

- 16_0235

Assembly Transfer to ASE Korea and Test Transfer to STATS ChipPAC Singapore of Select LFCSP Parts.

Jul 21, 2015

- 14_0226

ADP1051 Die Revision

Aug 6, 2014

- 13_0230

Assembly and Test Transfer of Select 3.5x3.5, 4x3, 4x4, and 5x5mm LFCSP Products to STATS ChipPAC China

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Jul 5, 2018

- 16_0235

arrow down

Assembly Transfer to ASE Korea and Test Transfer to STATS ChipPAC Singapore of Select LFCSP Parts.

Jul 21, 2015

- 14_0226

arrow down

ADP1051 Die Revision

Aug 6, 2014

- 13_0230

arrow down

Assembly and Test Transfer of Select 3.5x3.5, 4x3, 4x4, and 5x5mm LFCSP Products to STATS ChipPAC China

Evaluation Kit

Evaluation Kits 1

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EVAL-ADP1051

ADP1051 Evaluation Board

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EVAL-ADP1051

ADP1051 Evaluation Board

ADP1051 Evaluation Board

Product Detail


The ADP1051-240-EVALZ evaluation board and the ADP1051DC1-EVALZ daughter card feature the ADP1051 in a dc-to-dc switching power supply in full bridge topology with synchronous rectification. The circuit is designed to provide a rated load of 12 V, 20 A from a dc input voltage source of 36 V dc to 75 V dc. The ADP1051 provides functions such as output voltage regulation, synchronization, constant current control, prebias start up, direct paralleling, and comprehensive protection.

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