PT8A3514B Datasheet | Pericom Semiconductor

Features - Build in RC oscillator for sensor signal detection - On chip shunt regulated power supply - Using AC 60Hz/50Hz as timer clock can select by Part No. - Accurate timer with error dropping in ±1% - Sensitive movement detection - Powerful immunity of sensor Vibration - 30s time out for IRON in static horizontal position - 8min/10min/15min time out for IRON in static vertical position - LED to indicate operation status - Usable in both 120V and 240V voltage supply system - Quick function test mode - Support buzzer - Few external ponents - System standby mode power dissipation less than 1W (Base on remended application circuits) - DIP-8 and SOIC-8 package - Patent No: ZL 2005 2 0048330.4 Applications Description The PT8A3514/15/16/17/18/19(A/B) are high performance low power and low cost CMOS chips designed for intelligent electric IRON controller. Their intelligence mainly results from their sensitive detection to the movement and static position of electric iron by using a special sensor. With the sensor, these chips can detect the vertical/horizontal position and movement status of IRON. These chips are equipped with on-chip shunt regulator, sensor signal processor, build-in oscillator, timer, logic control, power on reset and output driving block etc. Pin Assignment DISC/BUZ 1 RELAY 2 LED 3 GND 4 8 VCC 7 ACCLK 6 SW 5 TEST - Electric Iron Controller Fig1 PT8A351x pin assigment Pad Description Pin No. Pin Name I/O Description Discharge the external electrolytic cap to stabilize and limit its voltage. Output 4KHz to 1 DISC/BUZ O driver buzzer when timer is out. Active high. RELAY O Relay drive output, active high. With open drain output, it can shut off external LED in parallel with this open-drain 3 LED O transistor, active low. -...