Part # Application Notes Access Control Accessories Adapters Computer Power Supply Home Appliances Control Home Automation Hvac Lightin datasheet

Part Manufacturer: ST Microelectronics

ST Microelectronics

Part Description: Smart inductive proximity switch


Part Details:

AN2679 Application note Smart inductive proximity switch Introduction The STEVAL-IFS006V1 inductive proximity switch demonstration board is designed based on the principle of metal body detection using the eddy current effect on the HF losses of a coil. It consists of a single transistor HF oscillator, an ST7LITEUS5 microcontroller and the TDE1708DFT intelligent power switch. The board is a compact and cost-effective solution for an inductive proximity sensor designed for simplicity and for a wide temperature range and supply voltage variations. Other board features include: Great flexibility: the MCU firmware can be modified depending on application requirements Sensitivity and hysteresis adjustment In-circuit programming and debugging capabilities Analog and digital temperature compensation PNP and NPN sensor functionality configurations Indicator status LED Overload and short-circuit protection GND and Vs open wire protection Compact design Supply voltage: 6 V to 48 VDC Temperature range: -25 °C to +85 °C Figure 1. Smart inductive proximity switch demonstration board July 2008 Rev 1 1/16 www.st.com Contents AN2679 Contents 1 Sensor overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Sensor circuit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1 Initial configuration and jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2 Output driver configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.3 Application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.4 Bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.5 ICC connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3 Software implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2/16 AN2679 List of tables List of tables Table 1. Initial configuration and jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6


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Application Notes Access Control Accessories Adapters Computer Power Supply Home Appliances Control Home Automation Hvac Lightin.pdf Datasheet