Huaao Manuals

Huaao LD1185 Triple-Output Triac Phase Angle Controller Datasheet

The LD1185 integrates a positive‑feedback function to generate trigger pulses for controlling the firing angle of a three‑terminal bidirectional triac, enabling stable speed control of universal motors. Typical applications include handheld power tools, vacuum cleaners, mixers and dimmers.

Key features include direct connection to 220 V/50 Hz or 110 V/60 Hz AC mains, minimal external components, soft‑start and fault monitoring, low quiescent current (6 mA), and a DIP14 or SOP14 package. Detailed pin descriptions, electrical parameters, and example circuits are provided. This manual is written in Chinese.

Covers: Introduction · Pin Configuration · Electrical Parameters · Functional Description · Trigger Pulse Generator · Soft Start