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MLX16303
Bi-directional Remote Sensor Unit Interface
Description
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MLX16303 General Description
This interface IC is designed for remote automotive sensors, especially between a main ECU and remote (sensor) units. It contains two identical interfaces and the main task of each interface is to supply one remote unit and to receive digital information from the same remote unit. It is also possible to send data as PWM voltage pulses to the remote unit, for example to program the remote unit for its special application. This is done by one active wire: the interface supplies the external unit with a pre-regulated voltage, the external unit transmits the digital information back to the interface by current modulation. A continuous diagnosis of the IC is running in the background. The diagnosis results can be requested by a microcontroller using the SPI interface.
MLX16303 Features and Benefits
Two identical interface channels for remote sensor units
Two connection modes: connection to OUTx and RETx or connection to OUTx and GND pin
16 bit Standard SPI for control and diagnosis via a microcontroller
Supply voltage for each remote unit with a supply current up to 45mA
Current limitation with an analog feed back loop for each channel
Receive data from the remote unit by current modulation with a transmission rate of 10kHz
Transmission of data to the remote unit via PWM voltage pulses
Data input/output can be directly connected to a microcontroller input/output (CMOS)
Low current consumption
All pins to the external interface are short-circuit and high-voltage protected
High immunity against cross coupling between the two channels
The current modulation provides high noise immunity for data transfer
MLX16303 Related Products
Part Number
Description
MLX16305
Safety Interlock Switch Sensor Interface IC
MLX16303 Applications
MLX16303 Documentation
DataSheet
File Type
Size
Revision
Date
Action
MLX16303 Datasheet
PDF
278.6 KB
004
MLX16303 Tools
MLX16303 Environmental Information
Environmental Information
File Type
Size
Revision
Date
Action
Package Material Declaration - SOIC16N LF - S1
PDF
106.4 KB
6.0
1/25/2012
RoHS Compliance Declaration MLX16303
PDF
37.5 KB
1.0
10/6/2009
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