SN65LBC172DW Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN65LBC172DW is a quad EIA-485 RS-485 differential line transmitter operating at 5V with four independent driver channels in a 20-pin SOIC package. It delivers standard differential outputs with 100mA maximum high-level input current for robust long-distance serial communication. Available from Texas Instruments with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- SN65LBC172DW Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Quad 4-channel RS-485/EIA-485 differential transmitters in a single 20-pin SOIC package for compact multi-channel designs
- 5V supply operation with standard CMOS/TTL-compatible inputs enabling broad logic family compatibility
- Differential output signaling providing high noise immunity for industrial and long-distance communication links
- RoHS lead-free compliant construction meeting JESD-609 e4 and international environmental standards
Applications
The SN65LBC172DW is used in industrial automation, factory control networks, and building management systems where multiple RS-485 differential serial communication channels are required on a single board. It is ideal for PLCs, motor drives, and SCADA systems that transmit data over long cable runs of up to 1200 meters in electrically noisy environments. The device also serves in multi-drop bus networks where up to 32 unit loads can be driven reliably from a single transmitter.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Differential Output | YES |
| Driver Number of Bits | 4 |
| High Level Input Current-Max | 0.0001A |
| Input Characteristics | STANDARD |
| Interface IC Type | LINE DRIVER |
| Interface Standard | EIA-485 |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Number of Functions | 4 |
| Out Swing-Min | 1.1V |
| Output Characteristics | 3-STATE |
| Output Low Current-Max | 0.000059999999999999995A |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max | 7mA |
| Supply Voltage-Max | 5.25V |
| Supply Voltage-Min | 4.75V |
| Supply Voltage-Nom | 5V |
| Supply Voltage1-Max | 5.25V |
| Supply Voltage1-Min | 4.75V |
| Supply Voltage1-Nom | 5V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Transmit Delay-Max | 20ns |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia, Taiwan |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN65LBC172DW:
Frequently Asked Questions
How many RS-485 transmitter channels does the SN65LBC172DW provide?
The SN65LBC172DW provides 4 independent RS-485 differential transmitter channels (Driver Number of Bits: 4) in a single 20-pin SOIC package, enabling quad-channel RS-485 transmission without requiring multiple discrete driver ICs.
What interface standard does the SN65LBC172DW comply with?
The SN65LBC172DW complies with the EIA-485 (RS-485) interface standard, which defines differential signaling for multi-point serial communication with high noise immunity over cable lengths up to 1200 meters at appropriate data rates.
What package is the SN65LBC172DW available in?
The SN65LBC172DW is available in a 20-pin SOIC package identified by JESD-30 code R-PDSO-G20, offering a balance of compact size and ease of PCB assembly for industrial and commercial communication interface designs.
What supply voltage does the SN65LBC172DW require?
The SN65LBC172DW operates from a 5V supply voltage, which is the standard operating voltage for this RS-485 line driver, and accepts standard TTL/CMOS-compatible input signals with a maximum high-level input current of 0.1mA.
What are common applications for the SN65LBC172DW?
Common applications include industrial control networks, building automation, SCADA systems, motor drive communication interfaces, and multi-drop RS-485 bus networks where multiple differential transmitter channels are needed in a space-efficient single-package solution.
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