IC-DI

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