This is a datasheet about LM1893 and LM2893
The handbook describes the LM1893 and LM2893 carrier‑current transceiver chips, which use the power mains to transfer data between remote locations. It explains the bi‑directional operation, FSK modulation, and the on‑chip driver that can handle 50 to 300 kHz carrier frequencies.
The document includes absolute maximum ratings, electrical characteristics for both transmitter and receiver modes, typical performance curves, and application guidance for integrating the chip into power‑line communication systems.
| Supply voltage (maximum) | 30 V |
|---|---|
| Operating ambient temperature range | -40 °C to 85 °C |
| Maximum continuous dissipation (transmit mode) | 1.66 W |
| Maximum continuous dissipation (receive mode) | 1.33 W |
| Data transmission rate | up to 4.8 kBaud |
| Carrier frequency range | 50 kHz to 300 kHz |
The maximum supply voltage is 30 V.
The device operates from –40 °C to 85 °C.
It can transmit data at up to 4.8 kBaud.
The chip supports carrier frequencies from 50 kHz to 300 kHz.