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ADP1046

Analog Devices
Part Number ADP1046
Manufacturer Analog Devices
Description Digital Controller
Published Apr 7, 2012
Detailed Description Data Sheet Digital Controller for Isolated Power Supply Applications ADP1046 FEATURES GENERAL DESCRIPTION Integrates...
Datasheet PDF File ADP1046 PDF File

ADP1046
ADP1046

Overview
Data Sheet Digital Controller for Isolated Power Supply Applications ADP1046 FEATURES GENERAL DESCRIPTION Integrates all typical PWM controller functions 7 PWM control signals Digital control loop Integrated programmable loop filters Programmable voltage line feedforward Dedicated soft start filter Programmable dead time for improved efficiency Remote and local voltage sense Primary and secondary side current sense Synchronous rectifier control Current sharing OrFET control I2C interface Extensive fault detection and protection Extensive programming and telemetry Fast digital calibration User accessible EEPROM APPLICATIONS AC-to-DC power supplies Isolated dc-to-dc power supplies Redundant power supply systems Server, storage, network, and communications infrastructure The ADP1046 is a flexible, digital secondary side controller designed for ac-to-dc and isolated dc-to-dc secondary side applications.
The ADP1046 is pin-compatible with the ADP1043A and offers several enhancements and new features, including voltage feedforward, improved loop response, and programmable dead time control to maximize efficiency.
The ADP1046 is optimized for minimal component count, maximum flexibility, and minimum design time.
Features include local and remote voltage sense, primary and secondary side current sense, digital pulse-width modulation (PWM) generation, current sharing, and redundant OrFET control.
The control loop digital filter and compensation terms are integrated and can be programmed over the I2C interface.
Programmable protection features include overcurrent protection (OCP), overvoltage protection (OVP), undervoltage lockout (UVLO), and overtemperature protection (OTP).
The built-in EEPROM provides extensive programming of the integrated loop filter, PWM signal timing, inrush current, and soft start timing and sequencing.
Reliability is improved through a built-in checksum and programmable protection circuits.
A comprehensive GUI is provided for easy design of loop...


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