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MLX16305 General Description

The 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.

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.
The high current range allows contact cleaning for resistive switches, and the high accuracy allows monitoring of contact ageing and early failures detection.

APPLICATIONS
=============

1. FAIL SAFE READ OUT OF MULTIPLE SAFETY INTERLOCK SWITCHES:
---------------------------------------------------------------------------------
Using Resistive switches or Non-contact (Hall effect) switches

=>> AUTOMOTIVE SAFETY:
------> Seat occupancy
------> Seat belt buckle
------> Air bag presence detection

=>> INDUSTRIAL
------> Industrial security doors
------> Machine guarding

2. READ OUT OF 2-WIRE ANALOG (CURRENT MODULATED) SENSORS:
---------------------------------------------------
For instance using the MLX90308, MLX90314 sensor interface IC's in analog (current output) mode [4 to 20mA].

=>> INDUSTRIAL SENSORS
------> Pressure sensing, strain gauge sensing, …

MLX16305 Features and Benefits

6 sense Channels
Force-Sense measurement for remote switches to GND
Current and Voltage measurement mode
High measurement accuracy : +/- 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

MLX16305 Related Products

MLX16303

Bi-directional Remote Sensor Unit Interface

MLX80103

LIN Switch Slave

Melexis Products

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Download Melexis
Annual Report 2011
English | Nederlands

MLX16305 Safety Interlock Switch Sensor Interface IC

Download MLX16305 Datasheet (PDF)

MLX16305 General Description

MLX16305 Features and Benefits

MLX16305 Related Products

MLX16305 Applications

MLX16305 Documentation

MLX16305 Tools

MLX16305 Environmental Information

MLX16305 In The Press

Related Melexis News

MLX16305 Frequently asked Questions

Buy MLX16305

Melexis Products

Melexis Members

Download Melexis Annual Report 2011 English | Nederlands

MLX16305 Safety Interlock Switch Sensor Interface IC

Download MLX16305 Datasheet (PDF)

MLX16305 General Description

MLX16305 Features and Benefits

MLX16305 Related Products

MLX16305 Applications

MLX16305 Documentation

MLX16305 Tools

MLX16305 Environmental Information

MLX16305 In The Press

Related Melexis News

MLX16305 Frequently asked Questions

Buy MLX16305

Download Melexis
Annual Report 2011
English | Nederlands