±80V Fault-Protected, 2Mbps,

Low Supply Current CAN Transceiver

________________________________________________________________ Maxim Integrated Products

1

For pricing delivery, and ordering information please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

General Description

The MAX3053 interfaces between the control area net-

work (CAN) protocol controller and the physical wires of

the bus lines in a CAN. It is primarily intended for indus-

trial systems requiring data rates up to 2Mbps and fea-

tures ±80V fault protection against shorts to

high-voltage power buses. The device provides differ-

ential transmit capability to the bus and differential

receive capability to the CAN controller.

The MAX3053 has three different modes of operation:

high-speed, slope control, and shutdown. High-speed

mode allows data rates up to 2Mbps. In slope control

mode, data rates are between 40kbps and 500kbps so

the effects of EMI are reduced and unshielded twisted

or parallel cable may be used. In shutdown mode, the

transmitter is switched off, and the receiver is switched

to a low-current mode.

An autoshutdown function puts the device in 15µA shut-

down mode when the bus or CAN controller is inactive

for 47ms or greater.

The MAX3053 is available in an 8-pin SO package and

is specified for -40°C to +125°C operation.

Applications

Industrial Control and Networks

Printers

Automotive Systems

HVAC Controls

Telecom 72V Systems

Features

o ±80V Fault Protection

o Three Operating Modes

High-Speed Operation up to 2Mbps

Slope Control Mode to Reduce EMI

(40kbps to 500kbps)

o 15µA Low-Current Shutdown Mode

o Autoshutdown when Device Is Inactive

o Automatic Wakeup from Shutdown

o Thermal Shutdown

o Current Limiting

o Fully Compatible with the ISO 11898 Standard

Ordering Information

TXD

RXD

RS

25k

Ω TO 180kΩ

CANL

GND

CANH

120

Ω

100nF

MAX3053

SHDN

GND

TXD

100nF

CAN

CONTROLLER

120

Ω

RXD

Typical Operating Circuit

19-2425; Rev 0; 4/02

Pin Configuration appears at end of data sheet.

PART

TEMP RANGE

PIN-PACKAGE

MAX3053ESA

-40°C to +85°C

8 SO

MAX3053ASA

-40°C to +125°C

8 SO