PT8A3300BWE

PT8A330xA/B |||||||||||||||| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Ceramic Heat Controller Features Description The PT8A330X is specially designed for ceramic High watt density Alumina Heaters heating control system. It can set the temperature High current pulse trigger for SCR continuously .It can drive SCR directly and detect the Quickly Heating-Up and Quickly Lost-Heat- heater temperature without extra temperature sensor. Recover It will start heat after power on and has one LED for Dual voltage 120VAC / 240VAC working state indication. Build-in timer will Internal 5v zener automatically power off after turn on for 1 hour @ Insensitive to environment temperature 60Hz or 1.2 hour @ 50Hz (for PT8A3300/1). Auto power off Optional DIP-8 and SOIC-8 package Applications Ceramic heating controller Pin Configuration Pin Description Name Pin No. Type Description VDD 1 power Power input or can be used as OFF push button input PTC 2 I Temperature sensor input VB 3 O Sampling bias voltage REF 4 O Reference for internal comparator LED 5 O LED driver output CLK 6 I Clock input from AC power line GND 7 power Power Ground GATE 8 O SCR trigger output, active high 12-07-0006 PT0284-1 07/06/12 1 PT8A330xA/B Ceramic Heat Controller |||||||||||||||| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Block Diagram Maximum Ratings Note: o o Storage Temperature ................................................................................... -55 C to +150 C Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the Supply Voltage to Ground Potential (Input & V Only)....................... -0.5V to + 6.5V DD device. This is a stress rating only and functional Supply Voltage to Ground Potential (Output s Only) .............................. -0.5V to + 6.5V operation of the device at these or any other condi- DC Input Voltage ............................................................................................ -0.5V to + 6.5V tions above those indicated in the operational sec- Input/Output Current ................................................................................... 50mA tions of this specification is not implied. Exposure Input/Output Current(Pin VDD, VBonly) ................................. 200mA to absolute maximum rating conditions for extended Power Dissipation ......................................................................................................... 500mW periods may affect reliability. Recommended operation conditions Symbol Description Min Type Max Unit T Operation Temperature -20 - +85 C A V Supply voltage 4.0 4.5 5.0 V DD 12-07-0006 PT0284-1 07/06/12 2