隔離DC-DC副邊應(yīng)用控制器快速入門指南

ADP1046是一款靈活的數(shù)字副邊控制器，設(shè)計(jì)用于AC-DC和隔離DC-DC副邊應(yīng)用。ADP1046與ADP1043A引腳兼容，具有一些性能改進(jìn)和新特性，包括電壓前饋、改進(jìn)環(huán)路響應(yīng)，以及可編程死區(qū)控制，以實(shí)現(xiàn)最高效率。
　　ADP1046還為實(shí)現(xiàn)最低元件數(shù)量、最大靈活性和最少設(shè)計(jì)時(shí)間進(jìn)行了優(yōu)化。具體特性包括本地和遠(yuǎn)程電壓檢測、原邊和副邊電流檢測、數(shù)字脈寬調(diào)制（PWM）產(chǎn)生、均流和冗余OrFET控制。控制環(huán)路數(shù)字濾波器和補(bǔ)償功能已集成至該器件，可通過I2C 接口編程?？删幊瘫Ｗo(hù)功能包括過流保護(hù)（OCP）、過壓保護(hù)（OVP）、欠壓閉鎖（UVLO）和過溫保護(hù)（OTP）。
　　內(nèi)置的EEPROM允許對(duì)集成的環(huán)路濾波器、PWM信號(hào)時(shí)序、浪涌電流和軟啟動(dòng)時(shí)序進(jìn)行廣泛的編程。通過內(nèi)置校驗(yàn)和及可編程保護(hù)電路，可靠性得以提高。
　　全面的GUI簡化了環(huán)路濾波器特性的設(shè)計(jì)和安全特性的編程。工業(yè)標(biāo)準(zhǔn)I2C總線可用于訪問許多監(jiān)控和系統(tǒng)測試功能。
　　ADP1046提供32引腳LFCSP封裝，采用3.3 V單電源供電。
　　The ADP1046 is a flexible， digital secondary side controller designed for ac-to-dc and isolated dc-to-dc secondary side applications. The ADP1046 is pin-compatible with the ADP1043A and offers several enhancements and new features， including voltage feedforward， improved loop response， and programmable dead time control to maximize efficiency.
　　The ADP1046 is optimized for minimal component count， maximum flexibility， and minimum design time. Features include local and remote voltage 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 terms are integrated and can be 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 available in a 32-lead LFCSP and operates from a single 3.3 V supply.