SN75LBC184 Series

Transient Voltage Suppression Differential Transceiver

Catalog

Transient Voltage Suppression Differential Transceiver

Part	Protocol	Supplier Device Package	Duplex	Mounting Type	Operating Temperature [Max]	Package / Case	Package / Case [y]	Package / Case [x]	Voltage - Supply [Min]	Voltage - Supply [Max]	Data Rate	Type	Receiver Hysteresis	Package / Case	Package / Case
Texas Instruments SN75LBC184DRG4	RS422 RS485	8-SOIC	Half	Surface Mount	70 °C	8-SOIC	3.9 mm	0.154 in	4.75 V	5.25 V	250 KBd	Transceiver	70 mV
Texas Instruments SN75LBC184P	RS422 RS485	8-PDIP	Half	Through Hole	70 °C	8-DIP			4.75 V	5.25 V	250 KBd	Transceiver	70 mV	0.3 in	7.62 mm
Texas Instruments SN75LBC184D	RS422 RS485	8-SOIC	Half	Surface Mount	70 °C	8-SOIC	3.9 mm	0.154 in	4.75 V	5.25 V	250 KBd	Transceiver	70 mV

Catalog

Transient Voltage Suppression Differential Transceiver

Key Features

• Integrated transient voltage suppressionESD Protection for bus terminals exceeds: ±30kV IEC 61000-4-2, contact discharge ±30kV IEC 61000-4-2, Air-gap discharge ±15kV EIA/JEDEC Human body modelCircuit damage protection of 400W peak (typical) per IEC 61000-4-5Controlled driver output-voltage slew rates allow longer cable stub lengths250kbps in Electrically noisy environmentsOpen-circuit fail-safe receiver design1/4 Unit load allows for 128 devices connected on busThermal shutdown protectionPower-up and power-down glitch protectionEach transceiver meets or exceeds the requirements of TIA/EIA-485 (RS-485) and ISO/IEC 8482:1993(E) standardsLow disabled supply current 300µA maximumPin compatible with SN75176Integrated transient voltage suppressionESD Protection for bus terminals exceeds: ±30kV IEC 61000-4-2, contact discharge ±30kV IEC 61000-4-2, Air-gap discharge ±15kV EIA/JEDEC Human body modelCircuit damage protection of 400W peak (typical) per IEC 61000-4-5Controlled driver output-voltage slew rates allow longer cable stub lengths250kbps in Electrically noisy environmentsOpen-circuit fail-safe receiver design1/4 Unit load allows for 128 devices connected on busThermal shutdown protectionPower-up and power-down glitch protectionEach transceiver meets or exceeds the requirements of TIA/EIA-485 (RS-485) and ISO/IEC 8482:1993(E) standardsLow disabled supply current 300µA maximumPin compatible with SN75176

Description

The SN75LBC184 and SN65LBC184 devices are differential data line transceivers in the trade-standard footprint of the SN75176 with built-in protection against high-energy noise transients. This feature provides a substantial increase in reliability for better immunity to noise transients coupled to the data cable over most existing devices. Use of these circuits provides a reliable low-cost direct-coupled (with no isolation transformer) data line interface without requiring any external components. The SN75LBC184 and SN65LBC184 can withstand overvoltage transients of 400W peak (typical). The conventional combination wave called out in IEC 61000-4-5 simulates the overvoltage transient and models a unidirectional surge caused by overvoltages from switching and secondary lightning transients. The SN75LBC184 and SN65LBC184 devices are differential data line transceivers in the trade-standard footprint of the SN75176 with built-in protection against high-energy noise transients. This feature provides a substantial increase in reliability for better immunity to noise transients coupled to the data cable over most existing devices. Use of these circuits provides a reliable low-cost direct-coupled (with no isolation transformer) data line interface without requiring any external components. The SN75LBC184 and SN65LBC184 can withstand overvoltage transients of 400W peak (typical). The conventional combination wave called out in IEC 61000-4-5 simulates the overvoltage transient and models a unidirectional surge caused by overvoltages from switching and secondary lightning transients.