隔离DC-DC副边应用控制器快速入门指南

ADP1046是一款灵活的数字副边 控制器，设计用于 AC- DC和隔离DC-DC副边应用。ADP1046与ADP1043A引脚兼容，具有一些性能改进和新特性，包括电压前馈、改进环路响应，以及可 编程死区控制，以实现最高效率。
　　ADP1046还为实现最低元件数量、最大灵活性和最少设计时间进行了优化。具体特性包括本地和远程电压 检测、原边和副边 电流检测、数字脉宽调制（PWM）产生、均流和冗余 OrFET控制。控制环路数字 滤波器和补偿功能已集成至该器件，可通过 I2C 接口编程。可编程保护功能包括过流保护（OCP）、过压保护（OVP）、欠压闭锁（UVLO）和过温保护（OTP）。
　　内置的EEP ROM允许对集成的环路滤波器、PWM 信号时序、浪涌 电流和软启动时序进行广泛的编程。通过内置校验和及可编程 保护电路，可靠性得以提高。
　　全面的GUI简化了环路滤波器特性的设计和安全特性的编程。 工业标准I2C总线可用于访问许多监控和系统测试功能。
　　ADP1046提供32引脚LFCSP封装，采用3.3 V单电源 供电。
　　The ADP1046 is a flexible， digital secondary side controller designed for ac-to-dc and isolated dc-to-dc secondary side appl ica tions. The ADP1046 is pin-compatible with the ADP1043A and offe rsseveral enhancements and new features， including voltage feedforward， improved loop response， and prog rammable dead time control to maximize efficiency.
　　The ADP1046 is optimized for minimal component count， maximum flexibility， and minimum design time. Features include local and remo tevoltage 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 te rmsare integrated and canbe 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 av ailable in a 32-lead LFCSP and operates from a single 3.3 V supply.