ADP1046A
Digital Controller for Isolated Power Supply Applications
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Overview
Features and Benefits
- 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 - 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
- Qualified for automotive applications
- Download ADP1046AW Automotive Data Sheet (pdf)
Product Details
The ADP1046A is a flexible, digital secondary side controller designed for ac-to-dc and isolated dc-to-dc secondary side applications. The ADP1046A is pin-compatible with the ADP1043A and offers several enhancements and new features, including voltage feedforward and improved loop response to maximize efficiency.
The ADP1046A 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), over- voltage 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 filter characteristics and programming of the safety features. The industry-standard I2C bus provides access to the many monitoring and system test functions.
The ADP1046A is available in a 32-lead LFCSP and operates from a single 3.3 V supply.
APPLICATIONS
- AC-to-DC power supplies
- Isolated dc-to-dc power supplies
- Redundant power supply systems
- Server, storage, network, and communications infrastructure
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Documentation & Resources
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AN-1383: ADP1046A EEPROM Programming (Rev. A)2/22/2016PDF525 K
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AN-1253: Layout Considerations for Digital Power Management (ADP1046A) (Rev. 0)2/14/2015PDF685 kB
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ADP1046A LLC Resonant Converter with Synchronous Rectification3/14/2014PDF1524 kB
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ADP1046A Wide Input Range, Full Bridge Phase Shifted Topology5/28/2013PDF9523 kB
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ADP1046A 100 Watt Evaluation Kit8/27/2012PDF5868 kB
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ADP1046A 300W Quarter Brick Module8/27/2012PDF4766 kB
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Digital Power Platforms for Next-gen Isolated power Delivery4/17/2019 -
Troubleshooting the ADP1046A Digital Power Controller11/28/2018 -
General Settings of the ADP1046A Digital Power Controller11/28/2018 -
Protection Features of the ADP1046A Digital Power Controller11/28/2018 -
Behind the Scenes of the ADP1046A Digital Power Controller11/28/2018 -
PWM Settings of the ADP1046A Digital Power Controller11/28/2018 -
Powering up the ADP1046A, 100W Demo Board11/28/2018 -
Complete Isolated DC-to-DC Converter Development Platform11/28/2018
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Simple Circuit Allows Backward Compatibility for Digital Power Controllers5/1/2014 Analog Dialogue
Software & Systems Requirements
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| ADP1046AACPZ-R7 | Material Declaration | Reliability Data | 32-Lead LFCSP (5mm x 5mm w/ EP) | |
| ADP1046AACPZ-RL | Material Declaration | Reliability Data | 32-Lead LFCSP (5mm x 5mm w/ EP) | |
| ADP1046AWACPZ-R7 | Material Declaration | Reliability Data | 32-Lead LFCSP (5mm x 5mm w/ EP) | |
| Wafer Fabrication Data |
Support & Discussions
ADP1046A Discussions
Sample & Buy
Ordering FAQs
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Buy Now Pricing
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List Pricing
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Lead Times
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Sampling
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Evaluation Boards
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.