MAX14782E_14 Datasheet, PDF (1/17 Pages) Maxim Integrated Products – 500Kbps 3.3V to 5V RS-485/RS-422 Transceiver with ±35kV HBM ESD Protection

MAX14782E
EVALUATION KIT AVAILABLE
500Kbps 3.3V to 5V RS-485/RS-422 Transceiver
with ±35kV HBM ESD Protection
General Description
The MAX14782E is a 3.3V to 5V ESD-protected trans-
ceiver intended for half-duplex RS-485/RS-422 com-
munication up to 500kbps. The device is optimized for
extended cable runs while maximizing tolerance to noise.
The MAX14782E integrated protection features include
short-circuit-protected outputs, hot-swap functionality,
and a true fail-safe receiver, guaranteeing a logic-high
receiver output when inputs are shorted or open. Hot-
swap capability eliminates undesired transitions on the
bus during power-up or hot insertion.
The transceiver draws 1.9mA (typ) supply current when
unloaded or when fully loaded with the drivers disabled
and draws less than 10µA (max) of supply current in low-
power shutdown mode.
The MAX14782E is available in 8-pin µMAX®, 8-pin SO,
and small, 8-pin (3mm x 3mm) TDFN-EP packages. All
packages operate over the -40°C to +125°C temperature
range.
Applications
● Motion Controllers
● Field Bus Networks
● Encoder Interfaces
● Backplane Buses
Benefits and Features
● Integrated Protection Increases Robustness
• High ESD Protection
±35kV HBM ESD
±20kV Air Gap IEC 61000-4-2 ESD
±12kV Contact IEC 61000-4-2 ESD
• Short-Circuit-Protected Outputs
• True Fail-Safe Receiver
• Hot-Swap Capability
● 3V to 5.5V Supply Voltage Range
● Data Rates up to 500kbps
● -40°C to +125°C Operating Temperature
● Allows Up to 32 Transceivers On the Bus
● Low 10µA (max) Shutdown Current
● Saves Board Space
• Available in 8-pin µMAX, SO, and TDFN-EP
Packages
Ordering Information/Selector Guide
PART
SUPPLY RANGE DATA RATE (MAX)
MAX14782EASA+
MAX14782EATA+
3.0V to 5.5V
3.0V to 5.5V
500kbps
500kbps
MAX14782EAUA+
3.0V to 5.5V
500kbps
µMax is a registered trademark of Maxim Integrated Products, Inc.
+Denotes lead(Pb)-free/RoHS-compliant package.
*EP = Exposed paddle.
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
PIN-PACKAGE
8 SO
8 TDFN-EP*
8 µMAX
19-6776; Rev 0; 8/13