The TCM1501B, TCM1506B, TCM1512B, TCM1531, TCM1532, TCM1536, and TCM1539 are monolithic integrated circuit telephone tone ringer drivers designed to replace electromechanical bells. These devices use BIDFET technology and are powered by the telephone line ring voltage, which ranges from 40 to 150 volts rms at frequencies between 15.3 Hz and 68 Hz.
| Operating free-air temperature range | -40°C to 85°C |
|---|---|
| Storage temperature range | -40°C to 125°C |
| Ringing stop threshold voltage | 7 to 11 V |
| Standby input impedance | 10 kΩ |
| SCR trigger voltage | 50 to 100 V |
| SCR trigger current | 55 to 110 mA |
The devices are powered by telephone line ring voltage varying from 40 volts to 150 volts rms.
Yes, they are designed for use with either a Piezo transducer or an inexpensive transformer-coupled speaker.
Yes, they feature lightning and transient protection circuitry designed to withstand transients of 1.5 kilovolt for up to 200 microseconds.