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Home » NEWEST Products » New by Manufacturer » Analog Devices Inc. » ADP1051 Digital Controller - Analog Devices
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ADP1051 Digital Controller with a PMBus Interface

Analog Devices ADP1051 Digital Controller
with a PMBus™ Interface

Analog Devices ADP1051 is an advanced digital controller with a PMBus™ interface targeting high density, high efficiency DC-to-DC power conversion. ADP1051 integrates voltage mode control with high speed, input line feed forward 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.

Features
  • Versatile digital voltage mode controller
  • High speed input voltage feed forward control
  • 6 pulse-width modulation (PWM) logic outputs with 625ps resolution
  • Switching frequency: 49kHz to 625kHz
  • Frequency synchronization as master and slave device
  • Multiple energy saving modes
  • Adaptive dead time compensation for efficiency optimization
  • Low device power consumption: 100mW typical
  • Direct parallel control for power supplies without OR'ing devices
    • Accurate droop current share
    • Pre-bias startup
    • Reverse current protection
    • Conditional overvoltage protection
  • Extensive fault detection and protection
  • PMBus compliant
  • Graphical user interface(GUI) for ease of programming
  • On-board EEPROM for programming and data storage
  • Available in a 24-lead, 4mm × 4mm LFCSP
  • -40°C to + 125°C operating temperature
Applications
  • High density isolated DC-to-DC power supplies
    • Intermediate bus converters
    • High availability parallel power systems
  • Server, storage, industrial, networking, and communications infrastructure
Typical Applications Circuit
Typical Applications Circuit
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  • Analog Devices Inc.