TCM1536, TCM1501B Datasheet - Texas Instruments

TCM1536 Telephone Tone Ringer Drivers

The TCM1501B, TCM1506B, TCM1512B, TCM1531, TCM1532, TCM1536, and TCM1539 are monolithic integrated circuit telephone tone-ringer drivers that, when coupled with an appropriate transducer, replace the electromechanical bell. These devices are designed using BIDFET technology for use with either a Pie.

ą Electronic Replacement for Electromechanical Telephone Bell When Used With Transducer Designed to Meet or Exceed FCC Part 68 Class B Ringer Requirements Low-Cost External Component Requirements Low External Component Count High Standby Input Impedance 1 MΩ Typ Low Ringer Equivalency Number < 1 Typ Single-Ended High-Voltage Output Compatible With Piezo Transducer or Transformer-Coupled Speaker Reliable BIDFET‡ Proce.

TCM1501B-etcTI.pdf