Datasheet > MLX16305_12

MLX16305_12

更新时间： 2022-02-26 13:31:28

品牌	Logo	应用领域
迈来芯 - MELEXIS		/
页数	文件大小	规格书
29页	447K
描述
Interlock switch sensor interface IC

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MLX16305_12 数据手册

MLX16305

Interlock switch sensor interface IC

1. Overview application Schematic

VSUP

Resistive Rotary Encoder

VBAT

78L05

Renc Renc

Renc

VDD

VBAT

MEAS_OUT

ADC

Switch to VBAT

VREF VSUP

Sense1

Sense2

Sense3

Sense4

Sense5

Sense6

(Rp2)

(Rs2)

(Rs3)

Microcontroller

Switch to GND

ENABLE

VI_CTRL

MLX16305

MUX_SENSE1

MUX_SENSE2

MUX_SENSE3

Rs6

RREF

GND

Rref

Interlock Switches

Seat

Occupant

Resistive and 2-wire Hall

2. Description

The MLX16305 is designed to diagnose the state of remote interlock switches in automotive safety

applications. 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 (switch/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. The range of switches can easily be extended by adding other

MLX16305 devices in parallel on the same microcontroller ADC input.

The high current and voltage range allow maximum contact cleaning energy for resistive switches. The

high accuracy allows monitoring of contact ageing and early failures detection.

3901016305

Rev. 008

Page 2 of 29

Data Sheet

Jun/12

123 4 5 6 7...29

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