Description
PT2129A is a high performance electronic fan controller LSI. Speed control, on-timer, off-timer, rhythm wind, sleep mode, head swing and/or light controls are all built into a single chip. Indicator LED output, buzzer output, key control input, as well as remote control decoding circuitry are all provided to build a full function electronic fan with remote control capability having the highest performance with the least external components. Pin assignments and application circuit are optimized for easy PCB layout and cost saving for electronic fan application.

Features
High performance CMOS technology
Low power consumption
DIP or SO package(22 pin SO not available)
Up to 3 dependent/independent swing-head/light outputs
Available in 16, 18, 20, 22, 24 pin package for none, one set or two sets swing head and/or light control
Built-in remote control decoding circuitry with mask option custom code
Optional independent light control
90 seconds cycle/6 seconds per step (off step 3 seconds) rhythm wind pattern
Four operation modes: ordinary, rhythm, ordinary sleep and rhythm sleep.
Memory start-up mode
Preset start-up timer up to 15 hours
2-3 seconds middle wind start-up (mask option)