PT2127A is a high performance electronic fan controller LSI. It integrates speed control, off-timer, rhythm wind, sleep mode, head swing and/or light control into a single chip. It also provides indicator LED output, buzzer output and key control input to build a full function electronic fan with the highest performance and minimal external components. Furthermore, the pin assignments and application circuit of PT2127A are optimized for easy PCB layout and cost saving.
The PT2127A is a high performance electronic fan controller LSI manufactured by Princeton Technology Corp. It integrates multiple features such as speed control, an off-timer, rhythm wind patterns, sleep mode, head swing, and light control into a single chip to minimize external components.
The device supports various operation modes including Ordinary, Rhythm, Ordinary Sleep, and Rhythm Sleep. It is available in DIP or SO packages (excluding 22-pin SO) with options for dependent or independent swing-head/light outputs depending on the specific model suffix.
The chip includes speed control, an off-timer, rhythm wind, sleep mode, head swing, and light control.
The Rhythm Wind pattern uses a 90-second cycle with 6 seconds per step.