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ADP1055-EVALZ 데이터시트(PDF) 1 Page - Analog Devices |
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ADP1055-EVALZ 데이터시트(HTML) 1 Page - Analog Devices |
1 / 140 page Digital Controller for Power Supply Applications with PMBus Interface Data Sheet ADP1055 Rev. A Document Feedback 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 ©2014–2015 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES −40°C to +125°C operation PMBus Revision 1.2 compliant with PEC and extended manufacturer specific commands 32-bit password protection with command masking 64 address selections (16 base addresses, expandable to 64) 6 PWM control signals, 625 ps resolution Frequency from 48 kHz to 1 MHz Duty cycle double update rate Digital control loop (PID + additional pole or zero configurability) Programmable loop filters (CCM, DCM, low/normal temperature) Fast line voltage feedforward Adaptive dead time compensation for improved efficiency Remote voltage sense Redundant programmable OVP Current sense Primary side cycle-by-cycle fast protection Secondary side cycle-by-cycle fast overcurrent protection Secondary side averaged reverse current protection using diode emulation mode with fixed debounce Synchronous rectifier control for improved efficiency in light load mode Nonlinear gain for faster transient response from DCM to CCM Frequency synchronization Soft start and soft stop functionality Average and peak constant current mode External PN junction temperature sensing 4 GPIOs (2 GPIOs configurable as active clamp snubber PWMs) Extended black box data recorder for fault recording User trimming on input and output voltages and currents Digital current sharing APPLICATIONS Isolated dc-to-dc power supplies and modules Redundant power supply systems GENERAL DESCRIPTION The ADP1055 is a flexible, feature-rich digital secondary side controller that targets ac-to-dc and isolated dc-to-dc secondary side applications. The ADP1055 is optimized for minimal component count, maximum flexibility, and minimum design time. Features include differential remote voltage sense, primary and secondary side current sense, pulse-width modulation (PWM) generation, frequency synchronization, redundant OVP, and current sharing. The control loop digital filter and compensation terms are integrated and can be programmed over the PMBus™ interface. Programmable protection features include overcurrent (OCP), overvoltage (OVP) limiting, undervoltage lockout (UVLO), and external overtemperature (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 PMBus provides access to the many monitoring and system test functions. The ADP1055 is available in a 32-lead LFCSP and operates from a single 3.3 V supply. TYPICAL APPLICATION DIAGRAM Figure 1. RES ADD JTD GPIO1 TO GPIO4 SDA SCL VDD AGND DGND OUTA OUTB OUTC OUTD CS1 SR1 SR2 VFF ISHARE VOUT SYNC NC VCORE DRIVER iCoupler® DRIVER VS+ DC INPUT LOAD OVP CS2– CS2+ VS– JRTN VDD ADP1055 CTRL SMBALRT PMBus |
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