PT8A3251WEX

PT8A3251WEX Datasheet

PT8A3251/53

Part	Datasheet
PT8A3251WEX	PT8A3251WEX (pdf)

Related Parts	Information
PT8A3251WE	PT8A3251WE
PT8A3251PE	PT8A3251PE
PT8A3253WEX	PT8A3253WEX
PT8A3253WE	PT8A3253WE
PT8A3253PE	PT8A3253PE
PT8A3253PEX	PT8A3253PEX
PT8A3251PEX	PT8A3251PEX

PDF Datasheet Preview
PT8A3251/53 Ceramic Heating Controller • 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 hour for 50Hz. The PT8A3251/53 also has over temperature protection function. The chip is enclosed in Lead free DIP-16 and SOIC-16. • 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 \|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\| PT8A3251/53 Ceramic Heating Controller Pin Description Pin No. Pin Name I/O Pin Description I/O Adjust Lost-heat-recover input and LED ON/OFF cathode output. LED scan common driver. LED scan common driver. REF2 Reference 2 for internal comparator. REF1 Reference 1 for internal comparator. Temperature sensor input. GATE SCR trigger output, active high. Over heat output, active high. Clock input from power line. GND Ground. PTC sampling power source. VDD1 Power. VDD2 Power. I/O On/Off key input and LED anode output. I/O Down key input and LED anode output. Ordering Information Ordering No. PT8A3251PE PT8A3251WE PT8A3253PE PT8A3253WE Note E = Pb-free Adding X Suffix= Tape/Reel Package Code P W P W PKG. DIMENSIONS MM SYMBOL MIN Package Lead free DIP-16 Lead free SOIC-16 Lead free DIP-16 Lead free SOIC-16 Pericom Semiconductor Corporation  1-800-435-2336  Pericom reserves the right to make changes to its products or specifications at any time, without notice, in order to improve design or performance and to supply the best possible product. Pericom does not assume any responsibility for use of any circuitry described other than the circuitry embodied in Pericom product. The company makes no representations that circuitry described herein is free from patent infringement or other rights, of Pericom. 12-07-0006 PT0224-1 07/06/12 8

PDF Datasheet Preview

PT8A3251/53

Ceramic Heating Controller
• 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 hour for 50Hz. The PT8A3251/53 also has over temperature protection function. The chip is enclosed in Lead free DIP-16 and SOIC-16.
• 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
||||||||||||||||

PT8A3251/53 Ceramic Heating Controller

Pin Description

Pin No. Pin Name I/O

Pin Description

I/O Adjust Lost-heat-recover input and LED ON/OFF cathode output.

LED scan common driver.

LED scan common driver.

REF2

Reference 2 for internal comparator.

REF1

Reference 1 for internal comparator.

Temperature sensor input.

GATE

SCR trigger output, active high.

Over heat output, active high.

Clock input from power line.

GND Ground.

PTC sampling power source.

VDD1

Power.

VDD2

Power.

I/O On/Off key input and LED anode output.

I/O Down key input and LED anode output.
Ordering Information
Ordering No. PT8A3251PE PT8A3251WE PT8A3253PE PT8A3253WE

Note E = Pb-free Adding X Suffix= Tape/Reel

Package Code P W P W

PKG. DIMENSIONS MM

SYMBOL MIN

Package Lead free DIP-16 Lead free SOIC-16 Lead free DIP-16 Lead free SOIC-16

Pericom Semiconductor Corporation  1-800-435-2336 

Pericom reserves the right to make changes to its products or specifications at any time, without notice, in order to improve design or performance and to supply the best possible product. Pericom does not assume any responsibility for use of any circuitry described other than the circuitry embodied in Pericom product. The company makes no representations that circuitry described herein is free from patent infringement or other rights, of Pericom.
12-07-0006

PT0224-1 07/06/12 8

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived PT8A3251WEX Datasheet file may be downloaded here without warranties.

Datasheet ID: PT8A3251WEX 510151