AC Switch Failure Mode Detector 8-Pin SO N T/R

The STCC08 is an AC switch failure mode detector and an AC power switch driver. It drives the AC switch and informs the MCU of switch failure. The MCU takes the appropriate actions to put the system in a secure state.Diode-mode, short circuit detection and open switch in both AC line polarities are detected.The STCC08 helps home appliances to meet the IEC 60335-1 safety standard.The STCC08 can be easily interfaced to an MCU with its CMOS input AC switch driver and CMOS compatible output for the failure mode detector.

3.3 V and 5 V power supply compatible

ACS, ACST, TRIAC compatible

Gate driver output: 28 mA max sink current

Adjustable gate drive current

Sense the AC switch voltage in both AC line polarities

Diode mode failure detection for solid state AC switches

Short circuit failure detection for AC switches, relays, electromechanical switches

Open AC switch detection for AC switches, relays, electromechanical switches

SO-8 SMD package

Benefits Enable appliances to meet IEC 60335-1 and IEC 60730-1 standards Enable appliances to meet IEC 61000-4-4 standard Eliminates high DC current in inductive load, by detecting the diode mode failure Improve system safety monitoring open switch failure with critical loads such as door locks Enable MCU to sense all AC switch failure modes and protect the appliance Less MCU pin allocated to AC failure detection multiple STCC08 designed with resistor dividers uses one I/O Easy to drive with MCU directly connected or through an opto coupler Highly compact with integrated solution in SMD version