MAX3050ASA+T Maxim Integrated Products, MAX3050ASA+T Datasheet

IC TXRX CAN 2MBPS 8-SOIC

MAX3050ASA+T

Manufacturer Part Number
MAX3050ASA+T
Description
IC TXRX CAN 2MBPS 8-SOIC
Manufacturer
Maxim Integrated Products
Type
Transceiverr
Datasheet

Specifications of MAX3050ASA+T

Number Of Drivers/receivers
1/1
Protocol
CAN
Voltage - Supply
4.5 V ~ 5.5 V
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX3050/MAX3057 interface between the CAN
protocol controller and the physical wires of the bus
lines in a controller area network (CAN). They are pri-
marily intended for automotive systems requiring data
rates up to 2Mbps and feature ±80V fault protection
against short circuits in high-voltage power buses. They
provide differential transmit capability to the bus and
differential receive capability to the CAN controller.
The MAX3050/MAX3057 have four modes of operation:
high speed, slope control, standby, and shutdown.
High-speed mode allows data rates up to 2Mbps. In
slope-control mode, data rates are 40kbps to 500kbps,
so the effects of EMI are reduced, and unshielded
twisted or parallel cable can be used. In standby mode,
the transmitters are shut off and the receivers are put
into low-current mode. In shutdown mode, the transmit-
ter and receiver are switched off.
The MAX3050 has an AutoShutdown™ function that
puts the device into a 15µA shutdown mode when the
bus or CAN controller is inactive for 4ms or longer.
The MAX3050/MAX3057 are available in an 8-pin SO
package and are specified for operation from -40°C to
+125°C.
19-2670; Rev 0; 10/02
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
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.
Automotive Systems
HVAC Controls
Telecom 72V systems
±80V Fault-Protected, 2Mbps, Low Supply
________________________________________________________________ Maxim Integrated Products
General Description
CONTROLLER
CAN
GND
TX0
RX0
Applications
30pF
0.1µF
24kΩ TO 180kΩ
V
CC
Current CAN Transceivers
V
TXD
RXD
RS
CC
MAX3050
MAX3057
o ±80V Fault Protection for 42V Systems
o Four Operating Modes
o AutoShutdown when Device Is Inactive
o Automatic Wake-Up from Shutdown (MAX3050)
o Thermal Shutdown
o Current Limiting
o Fully Compatible with the ISO 11898 Standard*
* Pending completion of testing.
MAX3050ASA
MAX3057ASA
(MAX3050)
GND
CANH
SHDN
CANL
High-Speed Operation Up to 2Mbps
Slope-Control Mode to Reduce EMI
(40kbps to 500kbps)
Standby Mode
Low-Current Shutdown Mode
PART
(100nF)
TOP VIEW
GND
TXD
RXD
V
Typical Operating Circuit
CC
120Ω
120Ω
1
2
4
3
-40°C to +125°C
-40°C to +125°C
TEMP RANGE
Ordering Information
MAX3050
MAX3057
SO
( ) ARE FOR 3050 ONLY.
Pin Configuration
7
6
5
8
PIN-PACKAGE
8 SO
8 SO
RS
CANL
CANH
SHDN
Features
1

Related parts for MAX3050ASA+T

MAX3050ASA+T Summary of contents

Page 1

... CAN controller is inactive for 4ms or longer. The MAX3050/MAX3057 are available in an 8-pin SO package and are specified for operation from -40°C to +125°C. Automotive Systems HVAC Controls Telecom 72V systems AutoShutdown is a trademark of Maxim Integrated Products, Inc. CAN CONTROLLER TX0 RX0 GND ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’ ...

Page 2

Fault-Protected, 2Mbps, Low Supply Current CAN Transceivers ABSOLUTE MAXIMUM RATINGS V to GND ............................................................ -0.3V to +6V CC TXD, RS, RXD, SHDN to GND ....................-0. CANH, CANL to GND..............................................-80V to +80V RXD Shorted to GND................................................. Continuous Continuous ...

Page 3

Fault-Protected, 2Mbps, Low Supply DC ELECTRICAL CHARACTERISTICS (continued +5V ±10 60Ω GND PARAMETER SYMBOL DC BUS RECEIVER ( CANH and CANL externally driven; -2V < V TXD ...

Page 4

Fault-Protected, 2Mbps, Low Supply Current CAN Transceivers TIMING CHARACTERISTICS (V = +5V ±10 60Ω 100pF PARAMETER SYMBOL TIMING Minimum Bit Time Delay TXD to Bus Active t ONTXD Delay TXD to ...

Page 5

Fault-Protected, 2Mbps, Low Supply CAN CONTROLLER TX0 RX0 30pF GND Figure 1. AC Test Circuit TXD CANH CANL DOMINANT CANH - CANL V /2 RXD CC t ONTXD t ONRXD Figure 2. Timing Diagram for Dynamic Characteristics _______________________________________________________________________________________ Current ...

Page 6

Fault-Protected, 2Mbps, Low Supply Current CAN Transceivers ( 60Ω 100pF +25°C, unless otherwise specified MAX3057 SLEW RATE vs -40° ...

Page 7

Fault-Protected, 2Mbps, Low Supply ( 60Ω 100pF +25°C, unless otherwise specified LOOPBACK PROPAGATION DELAY vs. R 1400 1200 1000 800 600 400 200 100 ...

Page 8

Fault-Protected, 2Mbps, Low Supply Current CAN Transceivers Detailed Description The MAX3050/MAX3057 interface between the protocol controller and the physical wires of the bus lines in a CAN. They are primarily intended for automotive appli- cations requiring data rates up ...

Page 9

Fault-Protected, 2Mbps, Low Supply Table 1. Transmitter and Receiver Truth Table TXD RS ✕ < 0. ✕ float V < 0. ✕ > 0. ...

Page 10

Fault-Protected, 2Mbps, Low Supply Current CAN Transceivers AutoShutdown (MAX3050) To manage power consumption, AutoShutdown puts the device into shutdown mode after the device has been inactive for a period of time. The value connected to SHDN ...

Page 11

Fault-Protected, 2Mbps, Low Supply Figure 8. FFT Recessive Bus at 500kbps Figure 9. FFT Dominant Bus at 62.5kbps ______________________________________________________________________________________ Current CAN Transceivers CANH - CANL 1V/div FFT 200mV/div Figure 10. FFT Recessive Bus at 62.5kbps CANH - CANL 1V/div ...

Page 12

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2002 Maxim Integrated Products ...

Related keywords