TI TIDA－01535隔离的超紧凑模拟输出模块参考设计
TI公司的TIDA-01535是隔离的超紧凑模拟输出模块参考设计,采用高度集成DAC8771 DAC来提供电流和电压输出.高度集成的DAC8771和LM25180初级边调整反馈转换器一起导致紧凑绝缘的设计,板尺寸为52-mm × 40-mm,元件最大高度为4mm.此外,设计的外电路提供EMI和EMC的瞬态保护.模拟输出设计符合标准工业电源电压12V到42V,系统具有16位电压(±12 V)或电流输出(±24 mA),总可调误差(TUE)小于满刻度(FSR)的0.1%.采用隔离电源能保持电源和数据输入和输出功能隔离.参考设计采用自适应功率管理,以最小化DAC8771的功率和热损耗,由于降低自发热使系统有更小的包装,从而改善了精度.参考设计主要用在工厂自动化和控制,马达驱动,建筑物自动化和电网基础设备如保护继电器,DCIO模块.本文介绍了参考设计TIDA-01535主要特性,框图和参考设计TIDA-01535主要指标以及电路图.
Reference design for power-isolated, ultra-compact analog output module
This single-channel, power-isolated, analog output module reference design delivers current and voltage outputs using the highly-integrated DAC8771 digital-to analog converter (DAC). The high integration of the DAC8771 coupled with the LM25180 primary-side regulated flyback converter lead to a compact, isolated design with 52-mm × 40-mm board dimensions and a maximum component height of 4 mm. Additionally, the design features external circuitry to provide transient protection for electromagnetic interference (EMI) and electromagnetic compatibility (EMC).
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