SLLS173G January   1994  – October 2022 SN65LBC179 , SN75LBC179

PRODUCTION DATA  

  1. 1Features
  2. 2Description
  3. 3Revision History
  4. 4Pin Configuration and Functions
  5. 5Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 Recommended Operating Conditions
    3. 5.3 Thermal Information
    4. 5.4 Dissipation Rating Table
    5. 5.5 Electrical Characteristics - Driver
    6. 5.6 Switching Characteristics - Driver
    7. 5.7 Electrical Characteristics - Receiver
    8. 5.8 Switching Characteristics - Receiver
    9. 5.9 Typical Characteristics
  6. 6Parameter Measurement Information
  7. 7Detailed Description
    1. 7.1 Functional Block Diagram
    2. 7.2 Device Functional Modes
    3. 7.3 Thermal Characteristics of IC Packages
  8. 8Device and Documentation Support
    1. 8.1 Device Support
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  9. 9Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

Electrical Characteristics - Driver

over recommended operating conditions (unless otherwise noted)
PARAMETERTEST CONDITIONSMINTYP(1)MAXUNIT
VIKInput clamp voltageII= − 18 mA−1.5V
|VOD|Differential output voltage(2)

RL = 54 Ω

See Figure 6-1

SN65LBC179, SN65LBC179Q1.12.25V
SN75LBC1791.52.25

RL = 60 Ω

See Figure 6-2

SN65LBC179, SN65LBC179Q1.12.25
SN75LBC1791.52.25
Δ|VOD|Change in magnitude of differential output voltage(3)See Figure 6-1 and Figure 6-2±0.2V
VOCCommon-mode output voltageRL = 54 ΩSee Figure 6-112.53V
Δ|VOC|Change in magnitude of common-mode output voltage(3)±0.2V
IOOutput current with power offVCC = 0,VO = − 7 V to 12 V±100μA
IIHHigh-level input currentVI = 2.4 V−100μA
IILLow-level input currentVI = 0.4 V−100μA
IOSShort-circuit output current−7 V ≤ VO ≤ 12 V±250mA
ICCSupply currentNo loadSN65LBC179, SN75LBC1794.25mA
SN65LBC179Q4.27mA
All typical values are at VCC = 5 V and TA = 25°C.
The minimum VOD specification of the SN65179 may not fully comply with ANSI RS-485 at operating temperatures below 0°C. System designers should take the possibly lower output signal into account in determining the maximum signal transmission distance.
Δ|VOD| and Δ|VOC| are the changes in the steady-state magnitude of VOD and VOC, respectively, that occur when the input is changed from a high level to a low level.