MLX16305中文资料Safety Interlock Switch Sensor Interface IC数据手册Melexis规格书

描述 Description

The Melexis MLX16305 is designed to diagnose the state of remote safety interlock switches in automotive safety applications (40V load-dump). Its high accuracy allows it to be applied in a broad range of related automotive and industrial applications using current modulated sensors and switches.
Our MLX16305 includes a current-limited regulated supply that is applied to one channel (i.e. to a remote switch or sensor) at a time. The supplied current or the resulting supply voltage are measured and presented as an analog voltage to the microcontroller for interpretation.
Each MLX16305 allows scanning up to 6 switches for changes in switch state and for any type of short/open circuit failure mode. Multiple MLX16305 devices can be placed in parallel on the same analog-to-digital converter (ADC) input of the microcontroller to scan up to 12 or 18, or ... switches.
The high current range allows contact cleaning for resistive switches and the high accuracy allows monitoring of contact ageing and early failures detection.

特性 Features

·Reduced wiring/connector cost -- Diagnose remote 2-wire switches with only 1 (
·!)
· wire per switch
·Up to 6 remote switches per MLX16305
·Enable pin allows to cascade multiple MLX16305 for applications with more than 6 remote switches
·Force-sense measurement for remote switches to GND
·Current and voltage measurement mode
·High measurement accuracy of +/- 5%
·Large current measurement range: [0; 45]mA
·Switch/Sensor supply output voltage: 3V .. 8.25V
·Applicable with resistive and with (current modulated 2-wire) Hall effect switches
·Automotive protected sense channels: 40V load-dump, …
·Diagnoses open wires, shorts to supplies and shorts between wires
·Internal over-current limitation
·Over-temperature detection
·Small package: narrow body (150mils) SO16

应用 Application

·汽车行业 - 底盘与安全