PT8A3361 Datasheet, PDF (6/16 Pages) Pericom Semiconductor Corporation – NTC+LCD Heating Controller

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PT8A3361/62/63/64
NTC+LCD Heating Controller
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Function Description
The PT8A336x is a mixed signal CMOS LSI chip designed as heating controller with help of external NTC (Negative
Temperature Component). NTC open protection is implemented for device safety and 11 temperature levels 100℃, 110℃, 120℃,
130℃, 140℃, 150℃, 160℃, 170℃, 180℃, 190℃, 200℃. It can drive TRIAC or SCR directly. It has 3 keys function setting.
LCD displays and backlight indicate the working status.
This device can be used in both 120V and 240V power line supplier, as it will automatically adjust the heating power according
to the power line voltage to avoid heating appliance damage or long heating time.
The PT8A3361/2/3/4 build-in timer will be auto-power off after power on 1 hour both 60Hz and 50Hz.
Temperature setting is as below:
Pin C/F is pulled to low level. Unit: F
For PT8A3361/2/3/4:
Pin1:SEL2 Pin19:SEL1 Level1 Level2 Level3 Level4 Level5 Level6 Level7 Level8 Level9 Level10 Level11
0
0
210 230 250 265 285 300 320 340 355
375
395
0
1
265 285 300 320 340 355 375 395 410
430
445
1
0
250 265 285 300 320 340 355 375 395
410
430
1
1
320 340 355 375 395 410 430 445
\
\
\
Pin C/F is pulled to high level. Unit: C
For PT8A3361/2/3/4:
Pin1:SEL2 Pin19:SEL1 Level1 Level2
0
0
100 110
0
1
130 140
1
0
120 130
1
1
160 170
Level3
120
150
140
180
Level4
130
160
150
190
Level5
140
170
160
200
Level6
150
180
170
210
Level7
160
190
180
220
Level8
170
200
190
230
Level9
180
210
200
\
Level10
190
220
210
\
Level11
200
230
220
\
1 Input Button
On/Off: This button will toggle Heating-on or Heating-off.
1). For PT8A3361; 3362; 3363; 3364;
After power on, then push on/off button to heating-on, the level of temperature setting selected is as below:
For PT8A3361/4
Pin1: SEL2 Pin19: SEL1 Pin C/F :low Pin C/F :High
0
0
300F
150°C
0
1
355F
180°C
1
0
340F
170°C
1
1
395F
200°C
Push on/off button to heating-off without power-off then push on/off button to heating-on, the level of temperature
setting selected is as former setting before heating-off.
2). Once heating-on, the level of temperature setting selected is as below:
For PT8A3362/3
Pin1: SEL2 Pin19: SEL1 Pin C/F :low Pin C/F :High
0
0
300F
150°C
0
1
355F
180°C
1
0
340F
170°C
1
1
395F
200°C
Up: Temperature up adjusts. Push Up button once, the temperature setting will increase one level until the highest level is
reached.
Down: Temperature down adjusts. Push Down button once, the temperature setting will reduce one level until the lowest
level is reached.
12-07-0006
PT0356-1 07/06/12
6