ADP1043: Digital Controller for Isolated Power Supply Applications
The ADP1043 is a secondary side power supply controller IC that is designed to provide all the functions that are typically needed in an isolated ac-to-dc or dc-to-dc control application.
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ADP1043: Digital Controller for Isolated Power Supply Applications
Product Description
The ADP1043 is a secondary side power supply controller IC that is designed to provide all the functions that are typically needed in an isolated ac-to-dc or dc-to-dc control application.
The ADP1043 is optimized for minimal component count, maximum flexibility, and minimum design time. Features include remote voltage sense, local voltage sense, primary and secondary side current sense, pulse-width modulation (PWM) generation, and hot-swap sense and control. The control loop is digital with an integrated programmable digital filter. Protection features include current limiting, undervoltage lockout (UVLO), and overvoltage protection (OVP).
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 redundancy of critical 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 moni-toring and system test functions.
The ADP1043 is available in a 32-lead LFCSP and operates from a single 3.3 V supply.
Applications
- AC/DC power supplies
- Isolated dc-to-dc power supplies
- Redundant power supplies
- Parallel power supplies
- Server, storage, network, and communications infrastructure
- Data Sheet Rev 0, 05/2009 (pdf 132kB)
- (About Data Sheets)
Features
Integrates all typical controller functions
- Digital control loop
- Remote and local voltage sense
- Primary and secondary side current sense
- PWM control
- Synchronous rectifier control
- Current sharing
- Integrated programmable loop filter
- I2C interface
- Extensive fault detection and protection
- Extensive programming
- Fast calibration
- EEPROM
- Standalone or microcontroller control
Diagrams
- Enlarge
- Other Diagrams
- Symbols and Footprints
Functional Block Diagram for ADP1043
Digital Controller for Isolated Power Supply Applications
Other Diagrams for ADP1043
Digital Controller for Isolated Power Supply Applications
ADP1043 Pin Configuration
Functional Block Diagram for ADP1043
Videos
This video is a brief overview of Digital Power and the ADP1043
"Inside the Analog Devices ADP1043 Reference Design" is a more in-depth video (8m 52s)
| Part# | Vin (V) | I2C Interface | EEPROM | Current Share Control | OrFET Control | Housekeeping | Protection | Product Description | Package | Widest Temp Range (Deg C) | Price* (1000-4999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ADM1041A | 5 | Yes | Yes | Analog | Yes | 5*Monitors, ACOK, ACSNS1/2, ALERT, POK, PSON | Internal & External, OTP, OVP, UVP & OCP | Secondary-Side Controller w/ Current Sharing, Housekeeping, & Digital Communications Bus | QSOP 24 | -40 to +85 | $3.21 |
| ADP1043 | 3.3 | Yes | Yes | Analog & Digital | Yes | ACSNS, FLAGIN, PGOOD1, PGOOD2, PSON | Internal & External, OTP, OVP, Programmable, UVP & OCP | Digital Controller for Isolated Power Supply Applications | LFCSP 32 | -40 to +85 | - |
* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S.
Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.