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
1
1
0
1
0
1
210
265
250
320
230
285
265
340
250
300
285
355
265
320
300
375
285
340
320
395
300
355
340
410
320
375
355
430
340
395
375
445
355
410
395
\
375
430
410
\
395
445
430
\
Pin C/F is pulled to high level. Unit: C
For PT8A3361/2/3/4:
Pin1:SEL2 Pin19:SEL1 Level1 Level2 Level3 Level4 Level5 Level6 Level7 Level8 Level9 Level10 Level11
0
0
1
1
0
1
0
1
100
130
120
160
110
140
130
170
120
150
140
180
130
160
150
190
140
170
160
200
150
180
170
210
160
190
180
220
170
200
190
230
180
210
200
\
190
220
210
\
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
1
1
0
1
0
1
150°C
180°C
170°C
200°C
300F
355F
340F
395F
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
1
1
0
1
0
1
150°C
180°C
170°C
200°C
300F
355F
340F
395F
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