MLX16305 安全互锁开关传感器接口芯片
MLX16305是一款专用的车用安全应用(40V负载突降)的远程安全互锁开关的传感器接口。它的高精度使得它可以广泛的用于相关的车用和工业应用的电流调制传感器和开关。
The 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 ADC input of the microcontroller to scan up to 12 or 18, or ... switches.
MLX16305包含一个一次用于一个通道(比如用于一个远程的开关或传感器)的限流稳压器。
The high current range allows contact cleaning for resistive switches, and the high accuracy allows monitoring of contact ageing and early failures detection.
特点和优点
- 6个传感通道
- 远程接地开关压力传感测量
- 电压和电流测量模式
- 高的测量精度: +/- 5%
- 大的电流测量范围: [0; 45]mA
- 开关/传感器输出电压:3-8.25V
- 可与电阻和霍尔开关(双线电流调制)一起应用
- 车用保护传感通道:40V负载突降等
- 诊断电源的断路、短路和引线之间短路
- 内部过流限制
- 过温探测
- 小封装:窄体(150mils) SO16
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