ANALOG DEVICES’ BREAKS THROUGH THE DIGITAL POWER BARRIER

Advanced digital controller matches analog control bandwidth and transient response
ADP1055

Norwood, MA (03/17/2014) - Analog Devices, Inc. (ADI), a global leader in high-performance semiconductors for signal-processing applications, introduced today the ADP1055 advanced digital power controller with PMBus™ interface for high-density, isolated DC-to-DC power supply system applications. The ADP1055 uses Analog Devices’ high-resolution, high-speed A/D converter sensing technology combined with proprietary non-linear transfer functionality to achieve high bandwidth performance and transient response equivalent to traditional analog switching controllers.

The ADP1055 is a versatile digital controller with six PWM (pulse-width modulation) logic outputs that can be programmed using an easy-to-use graphic user interface via the PMBus interface. The device enables high-energy-efficiency topologies including full bridge with precision drive timing and control of secondary synchronous rectifiers. The controller’s GIPO (general-purpose I/O) can be configured for active clamp secondary energy efficient snubbing. Energy efficiency is further optimized using adaptive dead-time compensation to improve the efficiency over the load range. Programmable light-load-mode operation combined with low device power consumption (<150mW) reduces system low-power standby losses.

The ADP1055 provides accurate analog and digital fault signaling via the PMBus and configurable GPIO. The device also records first instance of fault and provides ‘black box’ fault history recording capability—ideal for analyzing system failure mechanisms and reliability.

The ADP1055 digital power controller’s GUI (graphic user interface) enables customers to design and store settings in the high-reliability, internal EEPROM memory. The digital power controller is available in a 5-mm x 5-mm LFCSP package—an optimal size for high-density, high-frequency, compact, isolated DC-to-DC power modules or embedded designs for networking, communications and industrial applications operating from 100 W and higher.

The ADP1055 digital power controller’s GUI (graphic user interface) enables customers to design and store settings in the high-reliability, internal EEPROM memory. The digital power controller is available in a 5-mm x 5-mm LFCSP package—an optimal size for high-density, high-frequency, compact, isolated DC-to-DC power modules or embedded designs for networking, communications and industrial applications operating from 100 W and higher.

Availability, Pricing and Complementary Components

Product Availability Temp Range Price Each Per 1,000 Packaging
ADP1055 Now -40°C to +125°C $4.60 5-mm x 5-mm
32-lead LFCSP
ADP1055-EVALZ Now -- $300.00 --
ADP1055DC1-EVALZ Now -- $100.00 --

The ADP1050/51 and ADP1055 advanced digital controller family is complemented by ADI’s MOSFET drivers and iCoupler® digital isolators in isolated power systems, and the ADP1047 and ADP1048 power factor correction digital controllers in AC-to-DC systems. These devices facilitate easy implementation of intelligent power management for greater energy efficiency.

About Analog Devices

Innovation, performance, and excellence are the cultural pillars on which Analog Devices has built one of the longest standing, highest growth companies within the technology sector. Acknowledged industry-wide as the world leader in data conversion and signal conditioning technology, Analog Devices serves over 60,000 customers, representing virtually all types of electronic equipment. Analog Devices is headquartered in Norwood, Massachusetts, with design and manufacturing facilities throughout the world. Analog Devices is included in the S&P 500 Index.

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To subscribe to Analog Dialogue, ADI’s monthly technical journal, visit: http://www.analog.com/library/analogDialogue/

iCoupler® is a registered trademark of Analog Devices, Inc.

Editor's Contact Information:

Joe Dussi
(781) 937-1216

joe.dussi@analog.com

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