Overview

Product Description

The PT8A3227x are mixed signal CMOS LSI chips designed as heating controller with help of external NTC (Negative Temperature Component). NTC open protection is implemented for device safety.

Features

Full power output at 120VAC and 240VAC
Auto temperature control with NTC
NTC open protection
Multi mode LED indicator
Pulse trigger for high current SCR/TRIAC (up to 100mA)
Auto Heating off after heating timer timeout (1hour)
Internal Zener
Low cost 8-Pin DIP and SOIC package

Applications

Curler
Straightener

Specifications & Technical Documents

Product Parameters

Heating Element	Mica/PTC
LED @ Heater On	Flash
Auto Off	Yes
On/Off Key	Slide key in AC line
Driver Type	SCR/Triac

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Additional Technical Documents are available upon request:
Application information, Evaluation board, and Other technical documents

Request Documents

Purchase & Availability

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2770	2025-10-30	2025-10-30	Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products

PT8A3227