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PT8A3263-66A-F/67A/68A
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NTC Heating Controller with Multi LEDs
Features
Description
5/6 steps heat temperature settings with 5 LEDs or 6 LEDs indicator
Auto temperature control with NTC NTC open protection Pulse trigger for high current SCR / TRIAC (up to
15mA) Auto power off after exact 1 Hour heating(It is
optional to disable.) Dual Voltage (120/240V 50/60Hz) operations (only
PT8A3263-3266A/B/C available) Auto detect power supply Voltage (120V/240V) and
frequency (50/60Hz) Internal 5V Zener DIP-16 and SOIC-16 package
Applications
Ceramic heating controller
Pin Configuration
NTC1 1 NTC2 2 CLK 3
TM 4 C1 5 K1 6 K2 7
PT8A326x
16 VDD 15 GATE 14 L6 13 L5 12 L4 11 L3 10 L2
GND 8
9 L1
The PT8A3263/4/5/6/7/8 are mixed signal CMOS LSI chips specially designed for heating controller with the external NTC (Negative Temperature Component) sensor. NTC open protection is implemented for device safety and selectable 5 or 6 heating temperature levels.
PT8A3263/64 are for 5 step levels (eg.100℃, 120℃, 140℃, 160℃, 180℃) and PT8A3265/66 are for 6 step levels (eg. 100℃, 120℃, 140℃, 160℃, 180℃, 200℃). They can drive TRIAC or SCR directly and detect the heater’s temperature with NTC sensor input. They have up/down keys for temperature setting, On/Off Key for heating on/off control and 3 LEDs display mode.
PT8A3267/68 have 6 step levels (eg.100℃, 120℃, 140℃, 160℃, 180℃, 200℃). They can drive TRIAC or SCR directly and detect the heater’s temperature with NTC sensor input. They have up/down keys for temperature setting and On/Off Key for heating on/off control. They also have 1 second (2 seconds for PT8A3268A) delay function before go into off state and lock-key function. Their LEDs have special running flash mode (mode 4)
These devices can be used in both 120V and 240V power line system, as they can automatically adjust the heating power according to the power line voltage to avoid heating appliance damage or long heating time.
They have selectable build-in timer to enable/ disable auto-power off function after turn on 1 hour and the timer is 1 hour both under 60Hz and 50Hz power supply.
Pin Description
Name NTC1 NYC2 CLK TM
C1 K1 K2 L1~L6 GATE GND VDD
Pin No. 1 2 3 4 5 6 7
9-14 15 8 16
Type I O I I O I I O O
Ground Power
Description NTC voltage input, NTC open detection input Output signal for NTC open detection Clock input from power line Timer be disabled if tied ground ON state indicator / lock key indicator for 3267A/3268A UP, DOWN push button input ON/OFF push button input Six temperature steps indicator LED1~LED6 output TRIAC and SCR trigger output Ground Power Supply.
2015-07-0002
PT0326-2 09/29/15 1
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PT8A3263-66A-F/67A/68A NTC Heating Controller with Multi LEDs
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Maximum Ratings
StorageTemperature...................................................................................-55oC to +150oC Ambient Temperaturewith Power applied...............................................-20oC to +85oC SupplyVoltage to Ground Potential(Input & VDD Only).........................-0.5Vto+6.5V SupplyVoltage to Ground Potential(Output s Only)................................-0.5Vto+6.5V DC Input Voltage .............................................................................................-0.5Vto +6.5V Input/Output Current................................................................... 50mA Input/Output Current (Pin VDD, VB only)............................... 200mA Power Dissipation.........................................................................................................500mW
Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
Recommended operation conditions
Sym VDD TA FCLK
Parameter Operating Voltage Operating temperature Frequency of CLK
Pin VDD
CLK
Min
Typ
Max
Unit
4.0 VZ - V
-20 -
85 °C
- 50/60 -
Hz
DC Electrical Characteristics
DC Input Electrical Characteristics (VDD = 4.5V, TA = -20 ~ 85ºC, unless otherwise noted)
Symbol
Description
VT_ NTC1
Voltage of NTC1
Pin:NTC1 VDD=4.5V
.