DESCRIPTION

· The UM3483E and UM3486E are 3V to 5.5V-powered, ±15kV ESD-protected, slew-rate-limited differential transceivers with full RS485 compatibility.

· Designed for data transmission with an extended common mode range of -7V to 12V.

· UM3483E supports up to 500kbps data transmission, while UM3486E supports up to 2.5Mbps.

· Enhanced ESD protection: ±15kV (IEC61000-4-2 Air-Gap Discharge and Human Body Model), ±8kV (IEC61000-4-2 Contact Discharge).

· Drivers feature short-circuit current limitation and thermal shutdown protection.

· Receiver input fail-safe ensures logic-high output if inputs are open, shorted, or idle.

· Glitch-free driver outputs allow live insertion or removal from the data bus.

· Low power consumption: 300μA (operation), 1μA (shutdown).

· Available in SOP8 and DIP8 packages for half-duplex communication.

FEATURES

· Low-Power RS-485 Transceivers.

· Enhanced slew-rate limiting for error-free data transmission.

· 1μA low-current shutdown mode.

· Common-mode input voltage range: -7V to +12V.

· Supports up to 256 transceivers on the bus.

· Thermal shutdown and current-limiting for driver overload protection.

APPLICATIONS

· Telecommunications.

· Integrated Services Digital Networks.

· Industrial-Control Local Area Networks.

· Transceivers for EMI-sensitive applications.

· Packet Switching.

· Level Translators.

· ESD Protection for RS-485 I/O Pins.