PDF, 967 Kb, Datei veröffentlicht: Sep 25, 2013
Auszug aus dem Dokument
SN888C
www.ti.com SLLSEI4 – SEPTEMBER 2013 Bus-Polarity Correcting RS-485 Transceiver for E-Meters
Check for Samples: SN888C FEATURES APPLICATIONS 1 Exceeds Requirements of EIA-485 Standard
Bus-Polarity Correction within 76 ms
Data Rate: 300 bps to 250 kbps
Works with Two Configurations:
– Failsafe Resistors Only
– Failsafe and Termination Resistors
Up to 256 Nodes on a Bus
SOIC-8 Package for Backward Compatibility
Bus-Pin Protection:
– ±16 kV HBM protection
– ±12 kV IEC61000-4-2 Contact Discharge
– +4 kV IEC61000-4-4 Fast Transient Burst R The SN888C is a low-power RS-485 transceiver with
bus-polarity correction and transient protection. Upon
hot plug-in the device detects and corrects the bus
polarity within the first 76 ms of bus idling. On-chip
transient protection protects the device against
IEC61000 ESD and EFT transients.
The SN888C is available in an SOIC-8 package. The
device is characterized from –40°C to 85°C. DE A
120
B 1k
D POLCOR A
B R R 1k
RE D DESCRIPTION Cross-wire …
