SN65HVD72_13 Datasheet, PDF (1/29 Pages) Texas Instruments – 3.3V-Supply RS-485 with IEC ESD Protection

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SN65HVD72
SN65HVD75
SN65HVD78
SLLSE11B – MARCH 2012 – REVISED JUNE 2012
3.3V-Supply RS-485 with IEC ESD Protection
Check for Samples: SN65HVD72, SN65HVD75, SN65HVD78
FEATURES
1
• Small-size MSOP Packages Save Board Space,
or SOIC for Drop-in Compatibility
• Bus I/O Protection
– > ±15kV HBM protection
– > ±12kV IEC61000-4-2 Contact Discharge
– > ±12kV IEC61000-4-2 Air-Gap Discharge
• Extended Industrial Temperature Range
–40°C to 125°C
• Large Receiver Hysteresis (80 mV) for Noise
Rejection
• Low Unit-loading allows over 200 connected
nodes
• Low Power Consumption
– Low Standby Supply Current: < 2 µA
– I_CC <1 mA Quiescent During Operation
• 5V-Tolerant Logic Inputs Compatible With
3.3 V or 5 V Controllers
• Signaling Rate Options Optimized for:
250 kbps, 20 Mbps, 50 Mbps
APPLICATIONS
• Factory Automation
• Telecomm Infrastructure
• Motion Control
DESCRIPTION
These devices have robust 3.3V drivers and receivers
in a small package for demanding industrial
applications. The bus pins are robust to ESD events,
with high levels of protection to Human-Body Model
and IEC Contact Discharge specifications.
These devices each combine a differential driver and
a differential receiver, which operate from a single
3.3-V power supply. 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. These devices all
feature a wide common-mode voltage range making
the devices suitable for multi-point applications over
long cable runs. These devices are characterized
from -40°C to 125°C.
Part Number
SN65HVD72
SN65HVD75
SN65HVD78
Signaling Rate
up to 250 kbps
up to 20 Mbps
up to 50 Mbps
Table 1. Product Selection Guide
Cable Length
Duplex
Enables
up to 2000 m
Half
DE, RE
up to 100 m
Half
DE, RE
up to 50 m
Half
DE, RE
Package
MSOP-8
SOIC-8
SON-8
MSOP-8
SOIC-8
SON-8
MSOP-8
SOIC-8
SON-8
Nodes
256
256
96
SN65HVD72, 75, 78
R
1
RE
2
DE
3
D
4
8
V_CC
7B
6A
5 GND
Logic Diagram (Positive Logic)
R1
RE ²
3
DE
D4
6A
7
B
1
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
UNLESS OTHERWISE NOTED this document contains
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2012, Texas Instruments Incorporated