Key Specifications

 

The UM3783S8 is ±70V fault-protected, half-duplex, RS-485 transceiver operating on a single 3.0V to 5.5V supply voltage. Bus interface pins are protected against overvoltage conditions during all modes of operation ensuring robust communication in rugged industrial environments.

Extended ±15V input common-mode range guarantees reliable data communication over longer cable run lengths and/or in the presence of large ground loop voltages. Enhanced 250mV receiver hysteresis ensures high noise rejection. In addition, the receiver fail-safe feature guarantees a logic high when the inputs are open or shorted together.

The UM3783S8 is available in SOP8 package for space-constrained applications. The device is characterized over ambient free-air temperatures from –40°C to 125°C.
 

- Meets or exceeds the requirements of the TIA/EIA-485A standardsps 
- 3.0V to 5.5V supply voltage
- Differential output exceeds 2.1 V for PROFIBUS compatibility with 5V supply
- Bus I/O protection :
    -±70V DC bus fault
    -±4kV Human body model (HBM)
    -±2kV Charged-device model (CDM)
- Latch-up performance exceeds 600mA per JESD 78
- Half-duplex device available in 500 kbps
- Extended ambient temperature range: -40°C to 125°C
- Extended operational common-mode range: ±15 V
- Open, short, and idle bus failsafe
- Thermal shutdown
- 1/8 unit load (up to 256 bus nodes)
- Small SOP8 package
  

 

- Motor drives

- Factory automation and control

- HVAC systems

- Building automation

 

Part Number	Operating Temperature	Mark Code	Package Type	Shipping Qty
UM3783S8	-40°C to +125°C	UM3783S8	SOP8	3000pcs/13 Inch Tape & Reel