ACTIVE
Part Number
UM3783
Description
±70V Fault-Protected, 3.0V to 5.5V RS-485 Transceiver
Status
ACTIVE
Drivers/Receivers Per Package
1/1
Max Date rate (Mbps)
0.5
Bus Fault Protection (V)
-70 to 70
Common-mode range (V)
-25 to 25
VCC Range (V)
3.0 to 5.5
VIO Range (V)
-
ICC (Max) (mA)
5.6
ESD HBM (kV)
±18
IEC 61000-4-2 Contact (kV)
±9
Operating Temperature Range(℃)
-40 to 125
Package
SOP8, MSOP8
The UM3783 is ±70V fault-protected, half-duplex, RS-485 transceiver operating on a single 3V 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 ±25V 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 UM3783 is available in SOP8 and packages 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 standards
- 3V 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
-- ±18kV Human body model (HBM)
-- ±9kV IEC 61000-4-2 contact discharge
- Latch-up performance exceeds 800mA per JESD 78
- Half-duplex device available in 500 kbps
- Extended ambient temperature range: -40°C to 125°C
- Extended operational common-mode range: ±25 V
- Open, short, and idle bus failsafe
- Thermal shutdown
- 1/8 unit load (up to 256 bus nodes)
- Small SOP8 and MSOP8 packages
- Motor drives
- Factory automation and control
- HVAC systems
- Building automation
- Grid infrastructure
- Electricity meters
- Process analytics
- Video surveillance
| Part Number | Packaging Type | Marking Code | Shipping Qty |
|---|---|---|---|
| UM3783S8 | SOP8 | UM3783S8 | 3000pcs/13Inch Tape & Reel |
| UM3783M8 | MSOP8 | 3783 | 4000pcs/13Inch Tape & Reel |
