MAX3057ASA datasheet(7/12 Pages) MAXIM

Part #	MAX3057ASA

Description	±80V Fault-Protected, 2Mbps, Low-Supply Current CAN Transceivers

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Manufacturer	MAXIM [Maxim Integrated Products]

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(VCC = 5V, RL = 60Ω, CL = 100pF, TA = +25°C, unless otherwise specified.)

NAME

FUNCTION

1

TXD

Transmit Data Input. TXD is a CMOS/TTL-compatible input from a CAN controller.

2

GND

Ground

3

VCC

Supply Voltage. Bypass VCC to GND with a 0.1µF capacitor.

4

RXD

Receive Data Output. RXD is a CMOS/TTL-compatible output from the physical bus lines CANH and CANL.

5

SHDN

Shutdown Input. Drive SHDN low to put into shutdown mode. See the Detailed Description section for a full

explanation of SHDN behavior.

6

CANL

CAN Bus Line Low. CANL is fault protected to ±80V.

7

CANH

CAN Bus Line High. CANH is fault protected to ±80V.

8

RS

Mode Select Pin. Drive RS low or connect to GND for high-speed operation. Connect a resistor from RS to

GND to control output slope. Drive RS high to put into standby mode. See the Mode Selection section under

Detailed Description.

LOOPBACK PROPAGATION DELAY vs. RRS

RRS (kΩ)

150

100

50

200

400

600

800

1000

1200

1400

0

200

RECEIVER PROPAGATION DELAY

MAX3050 toc11

40ns/div

RXD

2V/div

CANH - CANL

DRIVER PROPAGATION DELAY

MAX3050 toc12

40ns/div

TXD

2V/div

CANH - CANL

RRS = GND

DRIVER PROPAGATION DELAY

MAX3050 toc13

1µs/div

TXD

5V/div

RRS = 24kΩ

RRS = 100kΩ

RRS = 180kΩ

MAX3050/MAX3057

±80V Fault-Protected, 2Mbps, Low-Supply

Current CAN Transceivers

Maxim Integrated │ 7

www.maximintegrated.com

Pin Description

Typical Operating Characteristics (continued)

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