SN65LBC184D

Number of Input Lines :
Number of Output Lines :
Polarity :
Maximum Operating Temperature : + 85 C
Mounting Style : SMD/SMT
Packaging : Tube
Supply Voltage - Max : 5.25 V
Supply Voltage - Min : 4.75 V
Package / Case : SOIC-8


Features:

` Integrated Transient Voltage Suppression
` ESD Protection for Bus Terminals Exceeds:
±30 kV IEC 61000-4-2, Contact Discharge
±15 kV IEC 61000-4-2, Air-Gap Discharge
±15 kV EIA/JEDEC Human Body Model
` Circuit Damage Protection of 400-W Peak
(Typical) Per IEC 61000-4-5
` Controlled Driver Output-Voltage Slew
Rates Allow Longer Cable Stub Lengths
` 250-kbps in Electrically Noisy
Environments
` Open-Circuit Fail-Safe Receiver Design
` 1/4 Unit Load Allows for 128 Devices
Connected on Bus
` Thermal Shutdown Protection
` Power-Up/-Down Glitch Protection
` Each Transceiver Meets or Exceeds the
Requirements of TIA/EIA-485 (RS-485) and
ISO/IEC 8482:1993(E) Standards
` Low Disabled Supply Current 300 A Max
` Pin Compatible With SN75176
` Applications:
− Industrial Networks
− Utility Meters
− Motor Control




Pinout








Specifications

Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . −0.5 V to 7 V
Continuous voltage range at any bus terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −15 V to 15 V
Data input/output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 7 V
Receiver output current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
Electrostatic discharge: Contact discharge (IEC61000-4-2) A, B, GND (see Note 2) . . . . . . . . . . . . . . 30 kV
Air discharge (IEC61000-4-2) A, B, GND (see Note 2) . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . . .. 15 kV
Human body model (see Note 3) A, B, GND (see Note 2) . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . 15 kV
All pins . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . 3 kV
All terminals (Class 3A) (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . . . . . . 8 kV
All terminals (Class 3B) (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . 1200 V
Continuous total power dissipation (see Note 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . Internally Limited
† Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. All voltage values, except differential input/output bus voltage, are with respect to network ground terminal.
2. GND and bus terminal ESD protection is beyond readily available test equipment capabilities for IEC 61000-4-2, EIA/JEDEC test
method A114-A and MIL-STD-883C method 3015. Ratings listed are limits of test equipment; device performance exceeds these limits.
3. Tested in accordance with JEDEC Standard 22, Test Method A114-A.
4. The driver shuts down at a junction temperature of approximately 160°C. To operate below this temperature, see the Dissipation Rating Table.




Description

The SN75LBC184 and SN65LBC184 are differential data line transceivers in the trade-standard footprint of the SN75176 with built-in protection against high-energy noise transients. This feature provides a substantial increase in reliability for better immunity to noise transients coupled to the data cable over most existing devices. Use of these circuits provides a reliable low-cost direct-coupled (with no isolation transformer) data line interface without requiring any external components.

The SN75LBC184 and SN65LBC184 can withstand overvoltage transients of 400-W peak (typical). The conventional combination wave called out in IEC 61000-4-5 simulates the overvoltage transient and models a unidirectional surge caused by overvoltages from switching and secondary lightning transients.

The SN65LBC184D is one member of the SN65LBC184 series.The SN65LBC184 is differential data line transceiver in the trade-standard footprint of the SN75176 with built-in protection against high-energy noise transients. SN65LBC184D feature provides a substantial increase in reliability for better immunity to noise transients coupled to the data cable over most existing devices.

Features of the SN65LBC184 are:(1)integrated transient voltage suppression;(2)circuit damage protection of 400 W peak(typical);(3)controlled driver output-voltage slew rates allows longer cable stub lengths;(4)open-circuit fail-safe receiver design;(5)1/2 unit load allows for 64 devices connected on bus;(6)thermal shutdown protection;(7)power-up/-down glitch protection.The device also includes additional desirable features for party-line data buses in electrically noisy environment applications including industrial process control. The differential-driver design incorporates slew-rate-controlled outputs sufficient to transmit data up to 250 kbits/s. Slew-rate control allows longer unterminated cable runs and longer stub lengths from the main backbone than possible with uncontrolled and faster voltage transitions.

The absolute maximum ratings of the SN65LBC184 can be summarized as:(1)supply voltage, Vcc:0.5 V to 7 V;(2)continuous voltage range at any bus terminal:15 V to 15 V;(3)data input/output voltage:0.3 V to 7 V;(4)continuous total power dissipation:internally limited;(5)storage temperature range, Tstg:65 to 150.Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage of the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for longer periods may affect device reliability.TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI's standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of SN65LBC184D is not necessarily performed, except those mandated by government requirements.