SN65HVD78 3.3 V Half-Duplex RS-485, with IEC ESD, 50 Mbps | TI.com

SN65HVD78 (ACTIVE)

3.3 V Half-Duplex RS-485, with IEC ESD, 50 Mbps

 

Recommended alternative parts

  • THVD1450  -  This P2P device offers integrated ESD, improved noise immunity, and EFT performance

Description

These devices have robust 3.3-V 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.

Each of these devices combines 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 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.

Features

  • Small-size VSSOP Packages Save Board Space, or SOIC for Drop-in Compatibility
  • Bus I/O Protection
    • >±15 kV HBM Protection
    • >±12 kV IEC 61000-4-2 Contact Discharge
    • >±4 kV IEC 61000-4-4 Fast Transient Burst
  • 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
    • ICC < 1 mA Quiescent During Operation
  • 5-V Tolerant Logic Inputs Compatible With 3.3-V or 5-V Controllers
  • Signaling Rate Options Optimized for:
  • Glitch Free Power-Up and Power-Down Bus Inputs and Outputs

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Parametrics Compare all products in RS-485/RS-422

 
Supply Voltage(s) (Nom) (V)
Number of TX
Number of RX
Duplex
Signaling Rate (Max) (Mbps)
IEC 61000-4-2 contact (+/- kV)
HBM ESD (kV)
Fault protection (V)
Number of nodes
Common mode range
ICC (Max) (mA)
Isolated
Rating
Operating temperature range (C)
Package Group
Approx. price (US$)
SN65HVD78 SN65HVD72 SN65HVD75 SN65HVD76 SN65HVD77 THVD1410 THVD1450 THVD1451 THVD1452
3.3     3.3     3.3     3.3     3.3     3.3
5    
3.3
5    
3.3
5    
3.3
5    
1     1     1     1     1     1     1     1     1    
1     1     1     1     1     1     1     1     1    
Half     Half     Half     Full     Full     Half     Half     Full     Full    
50     0.25     20     50     50     0.5     50     50     50    
12     12     12     12     12     18     18     18     18    
15     15     15     30     30     30     30     30     30    
-13 to 16.5     -13 to 16.5     -13 to 16.5     -13 to 16.5     -13 to 16.5     -18 to 18     -18 to 18     -18 to 18     -18 to 18    
200     200     200     96     96     256     256     256     256    
-7 to 12     -7 to 12     -7 to 12     -7 to 12     -7 to 12     -15 to 15     -15 to 15     -15 to 15     -15 to 15    
0.95     0.95     0.95     1.1     1.1     2.8     3     2.8     2.8    
No     No     No     No     No     No     No     No     No    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125    
SOIC | 8
SON | 8
VSSOP | 8    
SOIC | 8
SON | 8
VSSOP | 8    
SOIC | 8
SON | 8
VSSOP | 8    
SOIC | 14
VSSOP | 10    
SOIC | 8
VSSOP | 8    
SOIC | 8
VSSOP | 8    
SOIC | 8
SON | 8
VSSOP | 8    
SON | 8     SOIC | 14
VSSOP | 10