SN65HVD1780-Q1 Datasheet, PDF (1/28 Pages) Texas Instruments – Fault-Protected RS-485 Transceivers

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SN65HVD1780-Q1, SN65HVD1781-Q1, SN65HVD1782-Q1
SLLSE49B – SEPTEMBER 2010 – REVISED JANUARY 2016
SN65HVD178x-Q1 Fault-Protected RS-485 Transceivers With 3.3-V to 5-V Operation
1 Features
•1 Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results
– Device Temperature Grade 1:
–40°C to 125°C Ambient Operating
Temperature Range
– Device HBM ESD Classification Level H2
– Device CDM ESG Classification Level C3B
• Bus-Pin Fault Protection to:
– > ±70 V ('HVD1780-Q1, 'HVD1781-Q1)
– > ±30 V ('HVD1782-Q1)
• Operation With 3.3-V to 5-V Supply Range
• ±16-kV HBM Protection on Bus Pins
• Reduced Unit Load for up to 320 Nodes
• Failsafe Receiver for Open-Circuit, Short-Circuit
and Idle-Bus Conditions
• Low Power Consumption
– Low Standby Supply Current, 1 μA Maximum
– I_CC 4-mA Quiescent During Operation
• Pin-Compatible With Industry-Standard SN75176
• Signaling Rates of 115 kbps, 1 Mbps, and up to
10 Mbps
2 Applications
Automotive Data Links
3 Description
These devices are designed to survive overvoltage
faults such as direct shorts to power supplies, mis-
wiring faults, connector failures, cable crushes, and
tool mis-applications. They are also robust to ESD
events, with high levels of protection to the human-
body-model specification.
These devices combine a differential driver and a
differential receiver, which operate from a single
power supply. In the 'HVD1782, the driver differential
outputs and the receiver differential inputs are
connected internally to form a bus port suitable for
half-duplex (two-wire bus) communication. This port
features a wide common-mode voltage range, making
the devices suitable for multipoint applications over
long cable runs. These devices are characterized
from –40°C to 125°C. These devices are pin-
compatible with the industry-standard SN75176
transceiver, making them drop-in upgrades in most
systems.
These devices are fully compliant with ANSI TIA/EIA
485-A with a 5-V supply and can operate with a 3.3-V
supply with reduced driver output voltage for low-
power applications. For applications where operation
is required over an extended common-mode voltage
range, see the SN65HVD1785 (SLLS872) data sheet.
Device Information⁽¹⁾
PART NUMBER SIGNALING RATE
NUMBER OF
NODES
SN65HVD1780-Q1 Up to 115 kbps
Up to 320
SN65HVD1781-Q1 Up to 1 Mbps
Up to 320
SN65HVD1782-Q1 Up to 10 Mbps
Up to 64
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
V_FAULT up to 70 V
M0092-02
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION
DATA.