MAX3059ASA+ Maxim Integrated Products, MAX3059ASA+ Datasheet - Page 11

• Manufacturer Part Number: MAX3059ASA+
• Description: IC TXRX CAN 1MBPS 8-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Transceiverr

Specifications of MAX3059ASA+

• 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)
• Data Rate: 1Mbps
• Slew Rate: 7V/µs
• Supply Voltage Range: 4.5V To 5.5V
• Logic Case Style: SOIC
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +125°C
• Interface: CAN
• Termination Type: SMD
• Rohs Compliant: Yes
• Filter Terminals: SMD
• Data Rate Max: 1Mbps
• Driver Case Style: SOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

In slope-control mode, the CANH and CANL outputs
are slew-rate limited, minimizing EMI and reducing
reflections caused by improperly terminated cables.
In multidrop CAN applications, it is important to main-
tain a direct point-to-point wiring scheme. A single pair
of wires should connect each element of the CAN bus,
and the two ends of the bus should be terminated with
120Ω resistors. A star configuration should never
be used.
Any deviation from the point-to-point wiring scheme
creates a stub. The high-speed edge of the CAN data
on a stub can create reflections back down the bus.
These reflections can cause data errors by eroding the
noise margin of the system.
Applications Information
Reduced EMI and Reflections
______________________________________________________________________________________
CONTROLLER
CAN
GND
RX0
TX0
5V, 1Mbps, Low Supply Current
25kΩ–200kΩ
0.1µF
V
CC
V
TXD
RXD
RS
CC
MAX3058
Although stubs are unavoidable in a multidrop system,
care should be taken to keep these stubs as small as
possible, especially in high-speed mode. In slope-con-
trol mode, the requirements are not as rigorous, but
stub length should still be minimized.
The MAX3058/MAX3059 require no special layout con-
siderations beyond common practices. Bypass V
GND with a 0.1µF ceramic capacitor mounted close to
the IC with short lead lengths and wide trace widths.
TRANSISTOR COUNT: 1024
PROCESS: BiCMOS
GND
CANH
SHDN
CANL
CAN Transceivers
Typical Operating Circuit
Power Supply and Bypassing
120Ω
120Ω
Chip Information
CC
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