ADI ADP1055隔离式DC－DC电源解决方案

ADI公司的ADP1055是灵活,功能丰富的数字副边控制器,包括差分远程电压检测,原边和副边电流检测,脉宽调制(PWM)产生,频率同步,冗余OVP和均流等功能,并集成了控制环路数字滤波器和补偿功能,可通过PMBus接口编程.保护功能包括过流保护(OCP),过压保护(OVP),欠压闭锁(UVLO)和外部过温保护(OTP).3.3 V单电源供电.主要用在隔离式DC-DC电源和模块以及冗余电源系统.本文介绍了ADP1055主要特性,框图,典型应用电路图以及评估板ADP1055-EVALZ和子板ADP1055DC1-EVALZ主要特性,电路图,材料清单和PCB设计图.
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.
ADP1055主要特性:
−40℃ to +125℃ 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)