The LD33193 is a new generation industry standard Ã¢ÂÂFlasherÃ¢ÂÂ ASIC. It has been developed for enhanced EMI sensitivity, system reliability, and improved wiring simplification. The LD33193 is without lamp short circuit detection and using a 23mÃ¢ÂÂ¦ shunt resistor. The LD33193 has a standby mode of operation requiring very low standby supply current and can be directly connected to the vehicleÃ¢ÂÂs battery. It includes an RF filter on the fault detection pin (Pin 7) for EMI purposes. Fault detection thresholds are reduced relative to those of the Flasher IC, allowing a lower shunt resistance value (23mÃ¢ÂÂ¦) to be used. It can be used for LED lamp flasher. And the relay can be replaced with a transistor to achieve non-contact.