(China (Mainland))
Product Summary
? FailsafeReceiverforOpen-Circuit,
Short-CircuitandIdle-Bus Conditions
? LowPowerConsumption
– LowStandbySupplyCurrent,1mATyp
– I
CC
5mAQuiescentDuringOperation
? Power-Up,Power-DownGlitch-FreeOperation
APPLICATIONS
? DesignedforRS-485andRS-422Networks
Parametrics
1FEATURES
? Bus-PinFaultProtectionto:
– >±70V('HVD1785, 86,91,92)
– >±30V('HVD1787, 93)
? Common-ModeVoltageRange(–20Vto 2
MoreThanDoublesTIA/EIA485Requirem
? BusI/O Protection
– ±16kVJEDECHBMProtection
? ReducedUnitLoadforUpto 256Nodes
Features
Thesedevicesaredesignedto survive overvoltagefaults suchasdirectshortsto powersupplies,mis-wiring
faults, connectorfailures, cablecrushes,andtool mis-applications.Theyarealsorobust to ESDevents,withhigh
levels ofprotectionto human-bodymodelspecifications.
Thesedevicescombineadifferentialdriverandadifferentialreceiver, whichoperatefrom asinglepowersupply.
In the 'HVD1785,'HVD1786,and'HVD1787,the driverdifferentialoutputsandthe receiver differentialinputs are
connectedinternally to form abusportsuitablefor half-duplex(two-wire bus)communication.In the 'HVD1793,
the driverdifferentialoutputsandthe receiver differentialinputs areseparatepins,to form abusportsuitablefor
full-duplex (four-wire bus)communication.Theseportsfeature awidecommon-modevoltagerange, makingthe
devicessuitablefor multipointapplicationsoverlong cableruns. Thesedevicesarecharacterizedfrom –40°Cto
105°C.
Forsimilarfeatures with3.3Vsupplyoperation,seethe SN65HVD1781(SLLS877).
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 |
 SN65HVD1785DR |
Texas Instruments |
RS-485 Interface IC 70-V Fault-Protected RS-485 Transceivers |
Data Sheet |
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|
SN65HVD1785DRG4 |
Texas Instruments |
RS-485 Interface IC 70V Fault-Protected RS-485 Xcvrs |
Data Sheet |
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