特性 Features

? Meet the Requirements of the EIA/TIA-485

Standards with 5V Power Supply

? Integrated Transient Voltage Suppressor (TVS)

? TVS Protection for Bus Terminals :

±30 kV IEC 61000-4-2, Contact/Air Discharge

±4.4 kV IEC 61000-4-4, EFT (5/50ns)

±30 A IEC 61000-4-5, Surge (8/20μs)

? HBM ±15kV ESD Protection for all pins

? MM ±800V ESD Protection for all pins

? Latchup immunity up to ±400mA.

? High CDM protection up to ±2kV.

? True Fail-Safe Receiver While Maintaining

EIA/TIA-485 Compatibility

? Hot-Swap Glitch free Protection on Control

Inputs

? Up to 256 Transceivers on the Bus

Applications

? Motor Control

? Industrial Control

? Telecommunications Equipment

? Security System

? Building Automation Networks

描述 Description

The AZRS6534 is a ±30 kV IEC 61000-4-2

Contact/Air Discharge protected, half-duplex

transceiver designed for RS-485 data bus

network, which contains one transmitter and one

receiver. This device is fully compliant with the

EIA/TIA-485 standard with 5V power supply.

The AZRS6534 features a fail-safe receiver,

which guarantees the receiver to output high

when the receiver inputs are open, short or idle.

The AZRS6534 features a hot-swap glitch free

protection circuits which guarantee outputs of

both the transmitter and the receiver in a high

impedance state during the power up period. So

that the large short current from power to ground

will be disable by glitch free function, which will

save the power and enhance the efficiency of the

power up.

The AZRS6534 has the thermal shutdown

function when the temperature is over 150℃ and

the protection of the current limitation in the

transmitter to protect the itself from the damage

by the system-fault conditions during normal

operation.

The AZRS6534 is also a high reliable device with

built-in system level ESD protector device (TVS)

against high-energy noise transients without any

external components.