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ADP1043AACPZ-RL Fiches technique(PDF) 1 Page - Analog Devices |
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ADP1043AACPZ-RL Fiches technique(HTML) 1 Page - Analog Devices |
1 / 72 page Digital Controller for Isolated Power Supply Applications ADP1043A Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2009 Analog Devices, Inc. All rights reserved. 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 APPLICATIONS AC-to-DC power supplies Isolated dc-to-dc power supplies Redundant power supplies Parallel power supplies Server, storage, network, and communications infrastructure GENERAL DESCRIPTION The ADP1043A is a secondary side power supply controller IC designed to provide all the functions that are typically needed in an ac-to-dc or isolated dc-to-dc control application. The ADP1043A 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, ac sense, 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 ADP1043A is available in a 32-lead LFCSP and operates from a single 3.3 V supply. TYPICAL APPLICATION CIRCUIT RES RTD ADD VCORE FLAGIN PSON PGOOD2 PGOOD1 SDA SCL VDD DGND AGND OUTA OUTB OUTC OUTD OUTAUX CS1 SR1 SR2 ACSNS PGND VS1 GATE VS3+ VS3– SHAREo SHAREi DRIVER ADuM1410 DRIVER VS2 DRIVER PFC AC INPUT LOAD MICROCONTROLLER CS2– CS2+ VDD Figure 1. |
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