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MAX14770E

High-ESD PROFIBUS RS-485 Transceiver

Industry's Highest ESD-Protected PROFIBUS-DP Transceiver

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX14770E is a half-duplex, ±35kV HBM high ESD-protected 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 operates from a +5V supply and has true fail-safe circuitry that guarantees a logic-high receiver output when the receiver inputs are open or shorted.

The MAX14770E features a 1/4 standard-unit load receiver input impedance, allowing up to 128 1/4 unit load transceivers on the bus. Drivers are short-circuit current limited and are protected against excessive power dissipation by thermal-shutdown circuitry.

The MAX14770E is available in 8-pin SO and tiny TDFN (3mm x 3mm) packages, and is specified over the extended (-40°C to +85°C) and automotive (-40°C to +125°C) temperature ranges.

Data Sheet

Download	Rev 2	(PDF, 1.6MB)
E-Mail

Key Features

Meets EIA 61158-2 Type 3 PROFIBUS-DP
+4.5V to +5.5V Supply Voltage
20Mbps Data Rate
Short-Circuit Protected
True Fail-Safe Receiver
Thermal-Shutdown Protected
Hot Swappable
High ESD Protection
- ±35kV Human Body Model (HBM)
- ±20kV IEC 61000-4-2 Air Gap
- ±10kV IEC 61000-4-2 Contact
-40°C to +125°C Automotive Temperature Range in Tiny 8-Pin (3mm x 3mm) TDFN

Applications/Uses

Industrial Fieldbuses
Machine Encoders
Motion Controllers
PROFIBUS-DP Networks
RS-485 Networks

Key Specifications:

RS-422/485 Line Driver/Receivers

Part Number

Tx/Rx

Duplex

V_SUPPLY
(V)

I_CC
(mA)

Data Rate
(kbps)

ESD Protect.
(±kV)

Tx EN

Rx EN

I_CC (Shutdn.)
(µA)

Rx/Tx on Bus

Package/Pins

Budgetary Price

typ

min

typ

See Notes

MAX14770E

1Tx + 1Rx

Half

2.5

20000

Yes

128

See All RS-422/485 Line Driver/Receivers (165)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Functional Diagram

Application Notes

Tutorial 1833		Using RS-485/RS-422 Transceivers in Fieldbus Networks
Tutorial 4697		Overview of Industrial Motor Control Systems
Tutorial 4701		Introduction to Programmable Logic Controllers (PLCs) and the Operational Function of Main System Modules
Application Note 5260		Design Considerations for a Harsh Industrial Environment

Product Guides

Interface (PDF)

Reliability Reports

Reliability Report:	MAX14770E.pdf
Show FIT data for:

Software/Models

none

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX14770EATA+			Active	TDFN-EP;8 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX14770EATA+T			Active	TDFN-EP;8 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX14770EAUA+			Active	µMAX;8 pin;15.6 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX14770EAUA+T			Active	µMAX;8 pin;15.6 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX14770EESA+			Active	SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX14770EESA+T			Active	SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

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See All RS-422/485 Line Driver/Receivers (165 Products)

Similar Products by Application

Motor Control > Transceiver

Programmable Logic Controllers (PLCs) > PROFIBUS (Process Field Bus)

More Information

Topmark Coding	MAX14770E
New Product Press Release	[ 2010-02-09 ]

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-5017 Rev 2; 2011-01-13
This page last modified: 2011-01-13