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55LBC180 Series

Extended Temp Range RS-485 Transceiver

Manufacturer: Texas Instruments

Catalog(2 parts)

PartSupplier Device PackageDuplexTypeMounting TypeProtocolOperating TemperatureOperating TemperatureVoltage - SupplyVoltage - SupplyPackage / Case
Texas Instruments
SN55LBC180RSAT
1/1 Transceiver Full RS422, RS485 16-QFN (4x4)
16-QFN (4x4)
Full
Transceiver
Surface Mount
RS422, RS485
-55 °C
125 °C
4.75 V
5.25 V
16-VQFN Exposed Pad
Texas Instruments
SN55LBC180RSAR
1/1 Transceiver Full RS422, RS485 16-QFN (4x4)
16-QFN (4x4)
Full
Transceiver
Surface Mount
RS422, RS485
-55 °C
125 °C
4.75 V
5.25 V
16-VQFN Exposed Pad

Key Features

Designed for high-speed multipoint Data transmission over long cablesOperate with pulse durations as low as 30 nsLow supply current: 5 mA maximumMeet or exceed the requirements of ANSI standard RS-485 and ISO 8482:1987(E)3-State outputs for party-line busesCommon-mode voltage range of –7 V to 12 VThermal shutdown protection prevents driver damage from bus contentionPositive and negative output current limitingPin compatible with the SN75ALS180Designed for high-speed multipoint Data transmission over long cablesOperate with pulse durations as low as 30 nsLow supply current: 5 mA maximumMeet or exceed the requirements of ANSI standard RS-485 and ISO 8482:1987(E)3-State outputs for party-line busesCommon-mode voltage range of –7 V to 12 VThermal shutdown protection prevents driver damage from bus contentionPositive and negative output current limitingPin compatible with the SN75ALS180

Description

AI
The SN55LBC180, SN65LBC180 and SN75LBC180 combine a differential line driver and receiver with 3-state outputs and operate from a single 5-V supply. The driver and receiver have active-high and active-low enables, respectively, which can be externally connected to function as a direction control. The driver differential outputs and the receiver differential inputs are connected to separate terminals for full-duplex operation and are designed to present minimum loading to the bus whether disabled or powered off (VCC= 0). These parts feature a wide common-mode voltage range making them suitable for point-to-point or multipoint data-bus applications. The devices also provide positive and negative output-current limiting and thermal shutdown for protection from line fault conditions. The line driver shuts down at a junction temperature of approximately 172°C. The SN75LBC180 is characterized for operation over the commercial temperature range of 0°C to 70°C. The SN65LBC180 is characterized over the industrial temperature range of –40°C to 85°C. The SN55LBC180 is characterized for operation over the military temperature range of –55°C to 125°C. The SN55LBC180, SN65LBC180 and SN75LBC180 combine a differential line driver and receiver with 3-state outputs and operate from a single 5-V supply. The driver and receiver have active-high and active-low enables, respectively, which can be externally connected to function as a direction control. The driver differential outputs and the receiver differential inputs are connected to separate terminals for full-duplex operation and are designed to present minimum loading to the bus whether disabled or powered off (VCC= 0). These parts feature a wide common-mode voltage range making them suitable for point-to-point or multipoint data-bus applications. The devices also provide positive and negative output-current limiting and thermal shutdown for protection from line fault conditions. The line driver shuts down at a junction temperature of approximately 172°C. The SN75LBC180 is characterized for operation over the commercial temperature range of 0°C to 70°C. The SN65LBC180 is characterized over the industrial temperature range of –40°C to 85°C. The SN55LBC180 is characterized for operation over the military temperature range of –55°C to 125°C.