描述 Description

Si8947BD-AS4 devices are galvanically isolated delta-sigma modulators. The low voltage, differential input has a ±250 mV specified input range which is ideal for measuring voltage across a current shunt resistor or for any place where a sensor must be isolated from the control system. The output is a 1-bit datastream whose average represents the input analog voltage. This datastream is synchronous to an internal 20 Mhz clock. Low offset and gain drift ensure that accuracy is maintained over the entire operating temperature range of -40 to +125?C. Exceptionally high common mode transient immunity results in accurate measurements even in the presence of high power switching like would be found in a motor drive system or inverter. ?It supports 5 kV withstand voltage per UL1577 in a wide-body stretched SOIC-8 package. This technology enables higher performance, reduced variation with temperature and age, tighter part-to-part matching and longer lifetimes compared to other isolation technologies.

簡介

Si8947BD-AS4屬于集成電路（IC）的電源管理-專用。由制造生產(chǎn)的Si8947BD-AS4電源管理 - 專用專用型電源管理集成電路 (PMIC) 用于電源的控制或操作，適合特定或小范圍的目標應用，例如汽車氣囊管理、電容器組平衡、AC 公共電力監(jiān)控、存儲器總線端接、接地故障檢測、能量收集、小型引擎管理、處理器或芯片集專用電壓調節(jié)、負載突降保護、觸覺驅動器、熱電制冷器控制等。