Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsInterface ICsInterface IC - transceivers RS485 1/1 SOIC 8

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www.ti.com

FEATURES DESCRIPTION

APPLICATIONS

SN65HVD485E

SLLS612C – JUNE 2004 – REVISED MARCH 2007

HALF-DUPLEX RS-485 TRANSCEIVER

• Bus-Pin ESD Protection Up to 15 kV

The SN65HVD485E is a half-duplex transceiver

designed for RS-485 data bus networks. Powered by

• 1/2 Unit Load–Up to 64 Nodes on a Bus

a 5V supply, it is fully compliant with the

• Bus-Open-Failsafe Receiver

TIA/EIA-485A standard. This device is suitable for

• Glitch-Free Power-Up/Down Bus Inputs and

data transmission up to 10Mbps over long

Outputs

twisted-pair cables and is designed to operate with

very low supply current, typically less than 2mA,

• Available in Small MSOP-8 Package

exclusive of the load. When in the inactive shutdown

• Meets or Exceeds the Requirements of the

mode, the supply current drops below 1mA.

TIA/EIA-485A Standard

The wide common-mode range and high ESD

• Industry-Standard SN75176 Footprint

protection levels of this device make it suitable for

demanding applications such as, electrical inverters,

status/command signals across telecom racks,

• Motor Control

cabled chassis interconnects, and industrial

• Power Inverters

automation networks where noise tolerance is

essential. The SN65HVD485E matches the

• Industrial Automation

industry-standard footprint of the SN75176.

• Building Automation Networks

Power-on reset circuits keep the outputs in a

• Industrial Process Control

high-impedence state until the supply voltage has

• Battery-Powered Applications

stabilized. A thermal shutdown function protects the

• Telecommunications Equipment

device from damage due to system fault conditions.

The SN65HVD485E is characterized for operation

from –40 ° C to 85 ° C air temperature.

IMPROVED REPLACEMENT FOR:

PART NUMBER REPLACE WITH

Better ESD protection ( ± 15 kV vs unspecified)

ADM485 HVD485E: Faster signaling rate (10 Mbps vs 5 Mbps)

More nodes on a bus (64 vs. 32) Wider power supply tolerance (10% vs 5%)

More nodes on a bus (64 vs. 32)

SP485E HVD485E:

Wider power supply tolerance (10% vs. 5%)

Higher signaling rate (10 Mbps vs 2.5 Mbps)

LMS485E HVD485E: More nodes on a bus (64 vs 32)

Wider power supply tolerance (10% vs 5%)

Higher signaling rate (10 Mbps vs 2.5 Mbps)

Better ESD ( ± 15 kV vs ± 2 kV)

DS485 HVD485E:

More nodes on a bus (64 vs 32)

Wider power supply tolerance (10% vs 5%)

Better ESD ( ± 15 kV vs ± 2 kV)

LTC485 HVD485E:

Wider power supply tolerance (10% vs 5%)

Higher signaling rate (10 Mbps vs 2.5 Mbps)

MAX485E HVD485E: More nodes on a bus (64 vs 32)

Wider power supply tolerance (10% vs 5%)

Higher signaling rate (10 Mbps vs 5 Mbps)

ST485E HVD485E:

Wider power supply tolerance (10% vs 5%)

More nodes on a bus (64 vs 32)

ISL8485E HVD485:

Faster signaling rate (10 Mbps vs 5 Mbps)

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Copyright © 2004–2007, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (22 pages)

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SN65HVD485E DGK D P www.ti.
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SN65HVD485E www.ti.com SLLS612C – JUNE 2004 – REVISED MARCH 2007 These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. ORDERING INFORMATION PACKAGE TYPE TA –40°C to 85°C (1) (2) P D (1) DGK (2) SN65HVD485EP Marked as 65HVD485 SN65HVD485ED Marked as VP485 SN65HVD485EDGK Marked as NWJ The D package is available taped and reeled.
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SN65HVD485E www.ti.com SLLS612C – JUNE 2004 – REVISED MARCH 2007 RECOMMENDED OPERATING CONDITIONS (1) MIN TYP MAX UNIT VCC Supply voltage 4.5 5.5 V VI Input voltage at any bus terminal (separately or common mode) –7 12 V VIH High-level input voltage (D, DE, or RE inputs) 2 VCC V VIL Low-level input voltage (D, DE, or RE inputs) 0 0.
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SN65HVD485E www.ti.com SLLS612C – JUNE 2004 – REVISED MARCH 2007 DRIVER ELECTRICAL CHARACTERISTICS over recommended operating conditions (unless otherwise noted) PARAMETER TEST CONDITIONS IO = 0, No load MIN TYP (1) 3 4.3 RL = 54 W, See Figure 1 1.5 2.3 VTEST = –7 V to 12 V, See Figure 2 1.
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SN65HVD485E www.ti.
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SN65HVD485E www.ti.com SLLS612C – JUNE 2004 – REVISED MARCH 2007 PARAMETER MEASUREMENT INFORMATION NOTE: Test load capacitance includes probe and jig capacitance (unless otherwise specified). Signal generator characteristics: rise and fall time <6 ns, pulse rate 100kHz, 50% duty cycle. ZO = 50Ω (unless otherwise specified). A II 0 V or 3 V IOA 27 Ω VOD D B 50 pF 27 Ω IOB VOC Figure 1.
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SN65HVD485E www.ti.com SLLS612C – JUNE 2004 – REVISED MARCH 2007 PARAMETER MEASUREMENT INFORMATION (continued) A S1 D 0 V or 3 V 3 V if Testing A Output 0 V if Testing B Output DE 3V Output B 1.5 V DE CL = 50 pF 0V 0.5 V tPZH RL = 110 Ω VOH Output Signal Generator 1.5 V 2.5 V 50 Ω VOff 0 tPHZ Figure 5. Driver Enable/Disable Test Circuit and Waveforms, High Output 5V A D 0 V or 3 V 0 V if Testing A Output 3 V if Testing B Output DE RL = 110 Ω S1 3V Output B 1.
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SN65HVD485E www.ti.com SLLS612C – JUNE 2004 – REVISED MARCH 2007 PARAMETER MEASUREMENT INFORMATION (continued) VCC VCC D DE A 54 Ω B R 3V RE 0V 1.5 V 0V CL = 15 pF RE Signal Generator 1 kΩ tPZH tPHZ VOH 50 Ω 1.5 V R VOH −0.5 V GND Figure 10. Receiver Enable/Disable Test Circuit and Waveforms, Data Output High 0V VCC D DE A 54 Ω B R 3V RE 5V 1.5 V 0V CL = 15 pF RE Signal Generator 1 kΩ tPZL tPLZ VCC 50 Ω 1.5 V R VOL +0.5 V VOL Figure 11.
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SN65HVD485E www.ti.com SLLS612C – JUNE 2004 – REVISED MARCH 2007 PARAMETER MEASUREMENT INFORMATION (continued) VTEST 100 Ω 0V Pulse Generator, 15 µs Duration, 1% Duty Cycle 15 µs 1.5 ms −VTEST Figure 13.
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SN65HVD485E www.ti.
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SN65HVD485E www.ti.com SLLS612C – JUNE 2004 – REVISED MARCH 2007 TYPICAL CHARACTERISTICS BUS INPUT CURRENT vs BUS INPUT VOLTAGE DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs DIFFERENTIAL OUTPUT CURRENT 80 5 VOD − Differential Output Voltage − V 60 II − Input Bias Current − µA TA = 25°C VCC = 5 V 4.5 40 VCC = 0 V 20 0 VCC = 5 V −20 −40 RL = 120Ω 4 3.5 3 RL = 60Ω 2.5 2 1.5 1 0.5 −60 −8 −6 −4 −2 0 2 4 6 VI − Bus Input Voltage − V 8 10 12 0 0 Figure 14.
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SN65HVD485E www.ti.com SLLS612C – JUNE 2004 – REVISED MARCH 2007 APPLICATION INFORMATION RT RT NOTE: The line should be terminated at both ends with its characteristic impedance (RT = ZO). Stub lengths off the main line should be kept as short as possible. Figure 16. Typical Application Circuit POWER USAGE IN AN RS-485 TRANSCEIVER Power consumption is a concern in many applications. Power supply current is delivered to the bus load as well as to the transceiver circuitry.
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SN65HVD485E www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 18-Oct-2013 (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device.
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PACKAGE MATERIALS INFORMATION www.ti.com 16-Aug-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant SN65HVD485EDGKR VSSOP DGK 8 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 SN65HVD485EDR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 16-Aug-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN65HVD485EDGKR VSSOP DGK 8 2500 367.0 367.0 35.0 SN65HVD485EDR SOIC D 8 2500 340.5 338.1 20.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.