THVD1451 3.3-V to 5-V RS-485 transceiver with ±18-kV IEC ESD protection | TI.com

THVD1451
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3.3-V to 5-V RS-485 transceiver with ±18-kV IEC ESD protection

 

Description

THVD14xx is a family of noise-immune RS-485/RS- 422 transceivers designed to operate in rugged industrial environments. The bus pins of these devices are robust to high levels of IEC electrical fast transients (EFT) and IEC electrostatic discharge (ESD) events, eliminating the need for additional system level protection components.

Each of these devices operates from a single supply between 3 V and 5.5 V. The devices in this family feature an extended common-mode voltage range which makes them suitable for multi-point applications over long cable runs.

THVD14xx family of devices is available in small VSON and VSSOP packages for space constrained applications. These devices are characterized over ambient free-air temperatures from –40°C to 125°C.

Features

  • Meets or Exceeds the Requirements of the TIA/EIA-485A Standard
  • 3 V to 5.5 V Supply Voltage
  • Differential Output Exceeds 2.1 V for PROFIBUS Compatibility with 5-V Supply
  • Bus I/O ESD Protection
    • ±30 kV HBM
    • ±18 kV IEC 61000-4-2 Contact Discharge
    • ±25 kV IEC 61000-4-2 Air-Gap Discharge
    • ±4 kV IEC 61000-4-4 Fast Transient Burst
  • Extended Operational Common-mode
    Range: ±15 V
  • Low EMI 500 kbps and 50 Mbps Data Rates
  • Large Receiver Hysteresis for Noise Rejection
  • Low Power Consumption
    • Standby Supply Current: < 1 µA
    • Current During Operation: < 3 mA
  • Extended Ambient Temperature
    Range: –40°C to 125°C
  • Glitch-Free Power-Up/Down for Hot Plug-in Capability
  • Open, Short, and Idle Bus Failsafe
  • 1/8 Unit Load (Up to 256 Bus Nodes)
  • Small-Size VSON and VSSOP Packages Save Board Space or SOIC for Drop-in Compatibility

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Parametrics

Compare all products in RS-485 & RS-422 Email Download to Excel
Part number Order 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) Features Isolated Rating Operating temperature range (C) Package Group Approx. price (US$)
THVD1451 Order now 3.3
5    
1     1     Full     50     18     30     -18 to 18     256     -15 to 15     2.8     IEC ESD protection
Extended common mode    
No     Catalog     -40 to 125     SOIC | 8
SON | 8    
1.14 | 1ku    
SN65HVD72 Order now 3.3     1     1     Half     0.25     12     15     -13 to 16.5     200     -7 to 12     0.95     IEC ESD protection     No     Catalog     -40 to 125     SOIC | 8
SON | 8
VSSOP | 8    
0.99 | 1ku    
SN65HVD76 Order now 3.3     1     1     Full     50     12     30     -13 to 16.5     96     -7 to 12     1.1     IEC ESD protection     No     Catalog     -40 to 125     SOIC | 14
VSSOP | 10    
1.29 | 1ku    
SN65HVD77 Order now 3.3     1     1     Full     50     12     30     -13 to 16.5     96     -7 to 12     1.1     IEC ESD protection     No     Catalog     -40 to 125     SOIC | 8
VSSOP | 8    
1.29 | 1ku    
SN65HVD78 Order now 3.3     1     1     Half     50     12     15     -13 to 16.5     200     -7 to 12     0.95     IEC ESD protection     No     Catalog     -40 to 125     SOIC | 8
SON | 8
VSSOP | 8    
1.19 | 1ku    
THVD1410 Order now 3.3
5