Heater control circuit

Example of a heater drive circuit for controlling a main triac with a triac coupler

Heater control circuit

Lineup

Triac output photocoupler

Part number

TLP267J

TLP3052A

Package

4pin SO6

5pin DIP6

VDRM [V]

600

600

BVS [Vrms]

3750

5000

Topr [°C]

-40 to 100

-40 to 100

Type

Non zero voltage

Main control MCU

Part number

TMP89FW24ADFG

TMP89FW24AFG TMP89FW20AUG

Max operating frequency [Note]

16 MHz @VDD = 2.7 to 5.5 V / 8 MHz @VDD = 1.8 to 2.7 V

ROM (Flash memory)

Code area: 64 KB / Data area: 60 KB

RAM

3 KB + Shadow RAM 3 KB

IO port

68 52

Timer / Counter

16bit x 2ch, 10bit x 1ch, 8bit x 4ch

Serial port UART: 3ch, SIO: 1ch, I2C/SIO: 1ch 
AD converter 8ch (10bit)
LCD driver 40 seg. x 4 com. 32 seg. x 4 com.
Package QFP80-P-1420-0.80M LQFP80-P-1212-0.50F LQFP64-P-1010-0.50E

[Note ] Flash memory is read only when VDD = 1.8 to 2.7 V.

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