LTC486ISW

• Product introduction

LTC486ISW Quad, low-power RS485 driver

peculiarity

• Very low power: I_CC = 110μA (typical)
• Designed for RS485 or RS422 applications
• Single 5V power supply
• The -7V to 12V bus common-mode range allows ±7V ground difference between devices on the bus
• With thermal shutdown protection
• Interference-free driver outputs for power-up/power-down allow live mating and swapping operations
• The driver maintains high impedance with tri-state or power shutdown
• The typical driver propagation delay at 5ns is 28ns
• Pin compatible with SN75172, DS96172, μA96172, and DS96F172

description

LTC^®The 486 is a low power differential bus/line driver designed for multipoint data transfer standard RS485 applications with an extended common-mode range (-7V to 12V). They are also RS422 compliant.

Compared to its bipolar counterpart, the CMOS design offers significant energy savings without sacrificing robustness against overload or ESD damage.

The driver has a three-state output and the driver output maintains high impedance over the entire common-mode range. Thermal shutdown circuits are used to prevent excessive power consumption caused by bus contention or faults, which force the driver output into a high-impedance state.

The device's AC and DC specifications are guaranteed over the 0°C to 70°C (commercial), -40°C to 85°C (industrial) temperature ranges, and supply voltage ranges of 4.75V to 5.25V.