iC-DI Dual Sensor Interface with 3.3 V/5 V Power Supply - iC-Haus - #1

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iC-DI DUAL SENSOR INTERFACE Rev C2, Page 1/15 FEATURES © Dual channel switches, configurable for high-side, low-side and push-pull operation © Switches are current limited © Push-pull operation with tristate function © Output current of up to 100mA per channel © Parallel connection of both channels possible © Channel 1 can be inverted (antivalent output) © Wide supply voltage range of 9 to 30 V © Sensor parameterisation via a feedback channel (up to 30 V) © Switching converters and regulators for 3.3/5 V voltage generation © Error detection with hysteresis with excessive temperature, overload and low voltage © Driver shutdown in the event of error © Error messaging via two open-collector outputs APPLICATIONS © Sensor interface for light barriers and proximity switches, for example PACKAGES QFN24 4mmx 4mm BLOCK DIAGRAM =1 BIAS Overload CHANN. 2 CHANN. 1 Overtemp. Undervoltage QN2 QP2 VCC VH VHL ISET CFP CFO QCFG2 INV1 IN1 QCFG1 VCC VCC3 NOVL GND IN2 NUVD OEN 1 nF CFI VN VBR VN QN1 QP1 VBO VCC3 HS1 LS1 LS2 HS2 22 uH LVH ..50 mA RSET 1 uF CVH LINE Filter and Control Logic Filter and Control Logic 8.2 kW VBR 1 nF Copyright © 2008 iC-Haus http://www.ichaus.com