ADP1046
Digital Controller for Isolated Power Supply Applications
Top
Alternative Parts
Overview
Features and Benefits
- Integrates all typical PWM controller functions:
- 7 PWM control signals
- Digital control loop
- Integrated programmable loop filters
- Programmable voltage line feed forward
- Dedicated soft start filter - I2C Interface
- Extensive fault detection and protection
- Extensive programming and telemetry
- Additional typical PWM controller functions:
- Programmable dead-time for improved efficiency
- Remote and local voltage sense
- Primary and secondary side current sense - Synchronous rectifier control
- Current sharing
- ORFET control - Fast digital calibration
- User accessible EEPROM
Product Details
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), 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 ADP1046 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
Not Recommended for New Designs
This designates products ADI does not recommend broadly for new designs.
Documentation & Resources
-
ADP1046A 100 Watt Evaluation Kit8/27/2012
-
When the Supply Voltage Is Dynamic3/1/2020
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 |
|---|---|---|---|---|
| ADP1046ACPZ-R7 | Material Declaration | Reliability Data | 32-Lead LFCSP (5mm x 5mm w/ EP) | |
| ADP1046ACPZ-RL | Material Declaration | Reliability Data | 32-Lead LFCSP (5mm x 5mm w/ EP) | |
| Wafer Fabrication Data |
PCN-PDN Information
Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
A Sample link will be shown above, next to the part, only for parts that are included in our sample program. Selecting the Sample button will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.