PT8A3254PEX

PT8A3254PEX Datasheet

PT8A3252/54

Part	Datasheet
PT8A3254PEX	PT8A3254PEX (pdf)

Related Parts	Information
PT8A3254WE	PT8A3254WE
PT8A3252PEX	PT8A3252PEX
PT8A3254PE	PT8A3254PE
PT8A3254WEX	PT8A3254WEX
PT8A3252PE	PT8A3252PE

PDF Datasheet Preview
PT8A3252/54 5LED Ceramic Heating Controller • 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 compensation and insensitive to environment temperature • 5 Heat Temperature Settings • Auto power off only for PT8A3252 • Over Temperature protection • DIP-16 and SOIC-16 packages 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 hour for 50Hz. The circuit of Over-Heat Protection will be working for safety when heater • Ceramic Heating Controller • High watt density Alumina Heaters 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 Pin Description Pin No. Pin Name I/O Pin Description I/O Adjust input and LED 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. Clock input from power line. GND Ground. PTC sampling power source. VDD2 Power. VDD1 Power. I/O On/Off key input and LED output. I/O Down key input and LED output. I/O Up key input and LED output. Ordering Information Ordering No. PT8A3252PE PT8A3252WE PT8A3254PE PT8A3254WE 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 PT0233-1 07/06/12 7

PDF Datasheet Preview

PT8A3252/54
5LED Ceramic Heating Controller
• 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 compensation and insensitive to
environment temperature
• 5 Heat Temperature Settings
• Auto power off only for PT8A3252
• Over Temperature protection
• DIP-16 and SOIC-16 packages

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 hour for 50Hz. The circuit of Over-Heat Protection will be working for safety when heater
• Ceramic Heating Controller
• High watt density Alumina Heaters
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

Pin Description

Pin No. Pin Name I/O

Pin Description

I/O Adjust input and LED 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.

Clock input from power line.

GND Ground.

PTC sampling power source.

VDD2

Power.

VDD1

Power.

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

I/O Down key input and LED output.

I/O Up key input and LED output.
Ordering Information
Ordering No. PT8A3252PE PT8A3252WE PT8A3254PE PT8A3254WE

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

PT0233-1 07/06/12 7

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 PT8A3254PEX Datasheet file may be downloaded here without warranties.

Datasheet ID: PT8A3254PEX 510152