HI-8436中文资料Low threshold 32-channel Open/Groundor 28V/Open数据手册HOLT规格书

描述 Description

The HI-8436 is a 32-channel discrete-to-digital sensor fabricated with Silicon-on-Insulator (SOI) technology designed to interface with a Serial Peripheral Interface (SPI). Four banks of 8 sense inputs can be programmed as either GND/Open or Supply/Open sensors. Supply/Open sensing is also referred to as 28V/Open sensing.All sense inputs are internally lightning protected to DO160G, Section 22, Cat AZ, BZ and ZZ  without external components.   The sensing circuit window comparator thresholds are set by programming the center threshold and hysteresis  registers to values from 0.4V to 5.2V. The digital values of the sensed inputs can be read either one bank at a time or all 4 banks with one command.Each bank of sensors have a VWETn pin available for optional application of a voltage higher than the logic supply to provide wetting current to Ground side relay contacts. If the Ground offset is small, then the wetting source will automatically be provided from VLOGIC without connecting VWETn.Interface to the digital subsystem is simple CMOS logic inputs and outputs. The logic pins are compatible with 3.3V logic allowing direct connection to a wide range of microcontrollers or FPGAs.

特性 Features

·32-channel Selectable Sense Operation, GND/Open or 28V/Open
·Programmable Thresholds and Hysteresis in 0.1V steps from 0.4V to 5.2V
·Lightning Protected Sense Inputs
·Single low voltage supply operation for low threshold applications
·Logic operation from 3.0V to 3.6V
·20MHz Serial Peripheral Interface (SPI)
·Internal self-test
·Robust CMOS Silicon-on-Insulator (SOI) technology
·Industrial & extended temperature ranges available
 

应用 Application

·Avionics discrete sensing applications

简介

HI-8436属于集成电路（IC）的电源管理-专用。由制造生产的HI-8436电源管理 - 专用专用型电源管理集成电路 (PMIC) 用于电源的控制或操作，适合特定或小范围的目标应用，例如汽车气囊管理、电容器组平衡、AC 公共电力监控、存储器总线端接、接地故障检测、能量收集、小型引擎管理、处理器或芯片集专用电压调节、负载突降保护、触觉驱动器、热电制冷器控制等。