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SN75LBC172A

OBSOLETE

Quad RS-485 Differential Line Drivers

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Data sheet
SN75LBC172A is no longer in production
This product is no longer in production. New designs should consider an alternate product.
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Pin-for-pin with same functionality to the compared device
SN55LBC172 ACTIVE Quadruple Low-Power Differential Line Driver 10Mbps signaling rate, wider operating temp range
SN65LBC172A ACTIVE Quad RS-485 Differential Line Drivers Pin-to-pin device offers wider working temperature range
SN75LBC172 ACTIVE Quadruple Low-Power Differential Line Driver 10Mbps signaling rate

SN75LBC172A

OBSOLETE
Data sheet Order now

Product details

Number of receivers 0 Number of transmitters 4 Supply voltage (nom) (V) 5 Signaling rate (max) (Mbps) 30 Fault protection (V) -10 to 15 Common-mode range (V) -7 to 12 Number of nodes 32 Isolated No Supply current (max) (µA) 23000 Rating Catalog Operating temperature range (°C) 0 to 70
Number of receivers 0 Number of transmitters 4 Supply voltage (nom) (V) 5 Signaling rate (max) (Mbps) 30 Fault protection (V) -10 to 15 Common-mode range (V) -7 to 12 Number of nodes 32 Isolated No Supply current (max) (µA) 23000 Rating Catalog Operating temperature range (°C) 0 to 70
PDIP (N) 16 181.42 mm² 19.3 x 9.4 SOIC (DW) 16 106.09 mm² 10.3 x 10.3 SOIC (DW) 20 131.84 mm² 12.8 x 10.3
  • Designed for TIA/EIA-485, TIA/EIA-422, and ISO 8482 applications
  • Signaling Rates(1) up to 30Mbps
  • Propagation delay times <11 ns
  • Low standby power consumption 1.5mA max
  • Output ESD protection 12 kV
  • Driver positive- and negative-current limiting
  • Power-up and power-down glitch-free for live insertion applications
  • Thermal shutdown protection
  • Industry standard pin-out, compatible with SN75172, AM26LS31, DS96172, LTC486, and MAX3045

(1)The signaling rate of a line is the number of voltage transitions that are made per second expressed in the units bps (bits per second).
  • Designed for TIA/EIA-485, TIA/EIA-422, and ISO 8482 applications
  • Signaling Rates(1) up to 30Mbps
  • Propagation delay times <11 ns
  • Low standby power consumption 1.5mA max
  • Output ESD protection 12 kV
  • Driver positive- and negative-current limiting
  • Power-up and power-down glitch-free for live insertion applications
  • Thermal shutdown protection
  • Industry standard pin-out, compatible with SN75172, AM26LS31, DS96172, LTC486, and MAX3045

(1)The signaling rate of a line is the number of voltage transitions that are made per second expressed in the units bps (bits per second).

The SN65LBC172A and SN75LBC172A are quadruple differential line drivers with 3-state outputs, designed for TIA/EIA-485 (RS-485), TIA/EIA-422 (RS-422), and ISO 8482 applications.

These devices are optimized for balanced multipoint bus transmission at signaling rates up to 30 million bits per second. The transmission media may be printed-circuit board traces, backplanes, or cables. The ultimate rate and distance of data transfer is dependent upon the attenuation characteristics of the media and the noise coupling to the environment.

Each driver features current limiting and thermal-shutdown circuitry making it suitable for high-speed mulitpoint data transmission applications in noisy environments. These devices are designed using LinBiCMOS, facilitating low power consumption and robustness.

The G and G inputs provide driver enable control using either positive or negative logic. When disabled or powered off, the driver outputs present a high-impedance to the bus for reduced system loading.

The SN75LBC172A is characterized for operation over the temperature range of 0°C to 70°C. The SN65LBC172A is characterized over the temperature range from –40°C to 85°C.

The SN65LBC172A and SN75LBC172A are quadruple differential line drivers with 3-state outputs, designed for TIA/EIA-485 (RS-485), TIA/EIA-422 (RS-422), and ISO 8482 applications.

These devices are optimized for balanced multipoint bus transmission at signaling rates up to 30 million bits per second. The transmission media may be printed-circuit board traces, backplanes, or cables. The ultimate rate and distance of data transfer is dependent upon the attenuation characteristics of the media and the noise coupling to the environment.

Each driver features current limiting and thermal-shutdown circuitry making it suitable for high-speed mulitpoint data transmission applications in noisy environments. These devices are designed using LinBiCMOS, facilitating low power consumption and robustness.

The G and G inputs provide driver enable control using either positive or negative logic. When disabled or powered off, the driver outputs present a high-impedance to the bus for reduced system loading.

The SN75LBC172A is characterized for operation over the temperature range of 0°C to 70°C. The SN65LBC172A is characterized over the temperature range from –40°C to 85°C.
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* Data sheet SN65LBC172A, SN75LBC172A Quadruple RS-485 Differential Line Drivers datasheet (Rev. D) PDF | HTML 16 Apr 2024

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