Texas Instruments SN75LBC184DR
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | 0°C ~ 70°C |
| Type | Transceiver |
| Data Rate | 250kbps |
| Receiver Hysteresis | 70 mV |
| Supplier Device Package | 8-SOIC |
| Voltage - Supply | 4.75V ~ 5.25V |
| Protocol | RS422, RS485 |
| Number of Drivers/Receivers | 1/1 |
| Duplex | Half |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | 75LBC184 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,500 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
SN75LBC184DR 1/1 Transceiver Half RS422, RS485 8-SOIC
The SN75LBC184DR is a robust, RS-485/RS-422 differential bus transceiver from Texas Instruments, specifically designed for harsh industrial communication environments. This high-reliability IC features ±60V bus fault protection and ±15kV ESD protection (human body model), making it exceptionally resistant to electrical transients, lightning strikes, and electrostatic discharge commonly encountered in factory automation, process control, and building management systems. The device operates from a single 5V power supply while supporting full-duplex communication with data rates up to 10Mbps, enabling reliable long-distance data transmission up to 1200 meters in noisy environments. Its low-power shutdown mode (consuming just 0.1μA typical) combined with thermal shutdown protection makes it ideal for battery-powered field instruments and energy-efficient industrial networks.
This transceiver incorporates industry-standard RS-485 features including 1/8-unit load receiver input impedance (allowing up to 256 nodes on a single bus) and fail-safe receiver design that ensures logic-high output when inputs are open, shorted, or idle. The SN75LBC184DR provides three-state outputs and driver/receiver enable control for flexible bus management, along with current-limiting and thermal protection for the driver outputs. Packaged in a space-saving SOIC-8 package, the device operates across the industrial temperature range (-40°C to +85°C) and demonstrates exceptional common-mode rejection (±12V) to maintain signal integrity in the presence of ground potential differences between network nodes. Texas Instruments provides comprehensive application notes covering bus termination techniques, cable selection guidelines, and EMI reduction strategies, making this transceiver particularly suitable for Modbus networks, PROFIBUS systems, and motor control communications.
Alternative differential bus driver Models & Key Features:
● SN65LBC184DR: Similar specifications with slightly different ESD protection ratings
● MAX485ESA+: Maxim's equivalent RS-485 transceiver with 2.5Mbps speed
● ADM3485ARZ: Analog Devices' 12Mbps transceiver with reduced supply current
● ISL81487IBZ: Renesas' ±42V protected transceiver with 50Mbps capability
● THVD1450DR: TI's newer generation with IEC 61000-4-2 ESD protection
