PT8A3254 Datasheet | Pericom Semiconductor

||||||||||||||||||||||||||||||||||||||||||||||||||| PT8A3252/54 ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||||||| 5LED Ceramic Heating Controller Features Description - Pulse trigger with high current for SCR - Quickly Heating-Up and Quickly Lost-Heat- Recover - External Adjustable to fit wide range heating plates - External Adjustable to different TCR of sensors - Full temperature pensation and insensitive to environment temperature - 5 Heat Temperature Settings - Auto power off (only for PT8A3252) - Over Temperature protection - DIP-16 and SOIC-16 packages Applications - Ceramic Heating Controller - High watt density Alumina Heaters The PT8A3252/54 is specially designed for ceramic heating control with 5 internal level of 130C, 145C, 160C, 175C, 190C. And the temperature range can be adjusted from 100C to 250C by external series resistance. It can drive SCR directly and detect heater temperature by heater-self without extra temperature sensor. It has 3 keys for function setting, 5 LEDs for working status indication. The PT8A3252 has an internal timer; it timeouts and device will stop heating automatically after 216000 clock period, ie. 1 hour for 60Hz and 1.2 hour for 50Hz. The circuit of Over-Heat Protection will be working for safety when heater temperature reached to 250C. The chip is packaged in lead free DIP-16 and SOIC-16. Pin Configuration L4 1 C1 2 C2 3 REF2 4 REF1 5 PTC 6 GATE 7 OT 8 PT8A3252/54 16 L3 15 L2 14 L1 13 VDD1 12 VDD2 11 VB 10 GND 9 CLK 12-07-0006 PT0233-1 07/06/12 1 |||||||||||||||| PT8A3252/54 5LED Ceramic Heating Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||...