General Description

The MAX14770E is a half-duplex, Q35kV high ESD protected, 20Mbps transceiver for PROFIBUS-DP and RS-485 applications. In addition, it can be used for RS-422/V.11 communications. The MAX14770E is designed to meet IEC 61158-2, TIA/EIA-422-B, TIA/EIA-485-A, V.11, and X.27 standards. The MAX14770E is available in an 8-pin SO and an 8-pin FMAX? specified over the extended temperature range.

It is also available in a tiny TDFN (3mm x 3mm) package and specified over the automotive (-40NC to +125NC) temperature range.

Benefits and Features

? Integrated Protection Increases Robustness

?? ±35kV HBM ESD per JEDEC JS-001-2012

?? ±12kV Contact ESD per IEC 61000-4-2

?? ±15kV Air Gap ESD per IEC 61000-4-2

?? True Fail-Safe Receiver Prevents False

?? Transitions on Receiver Input Short or Open

?? Hot Swap Eliminates False Transitions During

?? Power-Up or Hot Insertion

?? Short-Circuit-Protected Outputs

?? Thermal Shutdown Circuitry Prevents Excessive

?? Power Dissipation

? Low Current Reduces Power Consumption

?? 15μA Shutdown Current

?? 2.5mA Supply Current Typical with No Load

? Profibus Compliant with Minimum 20Mbps Data Rate

? Allows Up to 128 Transceivers on the Bus

? -40°C to +125°C Automotive Temperature Range in Tiny 8-Pin (3mm x 3mm) TDFN

Applications

?? PROFIBUS-DP Networks

?? Industrial Fieldbuses

?? Motion Controllers

?? RS-485 Networks

?? Machine Encoders