PT8A3251 Datasheet, PDF (1/8 Pages) Pericom Semiconductor Corporation – Ceramic Heating Controller

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PT8A3251/53
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Ceramic Heating Controller
Features
Description
 High watt density Alumina Heaters
 High triggering current and double pulse trigger for
SCR
 Enhanced MHP Algorithm for Quickly Heating-Up
and Quickly Lost-Heat-Recover
 Uniform Heat to Maintain Constant Temperature
 Adjustable to fit wide range heating plates
 Adjustable to different Thermal Coefficient of
Resistively
 Full compensation and insensitive to environment
temperature
 6 Heat Temperature Settings
 Auto power off for PT8A3251
 Over Temperature protection
 Package: DIP-16 and SOIC-16 package
The PT8A3251/53 is a Mix-signal CMOS chip
designed for ceramic heating controller. The chip offers
6 different default heat temperature settings including
150C, 170C, 185C, 200C, 215C, 230C. And the
temperature range can be adjusted through external
series resistance. The PT8A3251 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 PT8A3251/53 also has over temperature
protection function. The chip is enclosed in Lead free
DIP-16 and SOIC-16.
Applications
 Ceramic Heating Controller
Pin Configuration
L4 ₁
C1 ²
C2 ₃
REF2 ₄
REF1 ₅
PTC 6
GATE 7
OT 8
PT8A3251/33
16 ^L3
15 ^L2
14 ^L1
13 ^VDD2
12 _VDD1
11 _VB
10 GND
9 CLK
12-07-0006
PT0224-1 07/06/12
1