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PDF MAX3051 Data sheet ( Hoja de datos )
| Número de pieza | MAX3051 | |
| Descripción | Low-Supply-Current CAN Transceiver | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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MAX3051
+3.3V, 1Mbps, Low-Supply-Current
CAN Transceiver
General Description
The MAX3051 interfaces between the CAN protocol
controller and the physical wires of the bus lines in a
controller area network (CAN). The MAX3051 provides
differential transmit capability to the bus and differential
receive capability to the CAN controller. The MAX3051
is primarily intended for +3.3V single-supply applications
that do not require the stringent fault protection specified
by the automotive industry (ISO 11898).
The MAX3051 features four different modes of opera-
tion: high-speed, slope-control, standby, and shutdown
mode. High-speed mode allows data rates up to 1Mbps.
The slope-control mode can be used to program the slew
rate of the transmitter for data rates of up to 500kbps.
This reduces the effects of EMI, thus allowing the use
of unshielded twisted or parallel cable. In standby mode,
the transmitter is shut off and the receiver is pulled high,
placing the MAX3051 in low-current mode. In shutdown
mode, the transmitter and receiver are switched off.
The MAX3051 input common-mode range is from -7V to
+12V, exceeding the ISO 11898 specification of -2V to
+7V. These features, and the programmable slew-rate
limiting, make the part ideal for nonautomotive, harsh
environments. The MAX3051 is available in 8-pin SO and
SOT23 packages and operates over the -40°C to +85°C
extended temperature range.
Applications
●● Printers JetLink
●● Industrial Control and Networks
●● Telecom Backplane
●● Consumer Applications
Typical Operating Circuit at end of data sheet.
Benefits and Features
●● Use 3V Microcontroller with Same LDO
• Low +3.3V Single-Supply Operation
●● Common Mode Range Exceeds the ISO11898
Standard (-2V to +7V)
• Wide -7V to +12V Common-Mode Range
●● Uses Minimal Board Space
• SOT23 Package
●● Flexible Operation Optimizes Performance
and Power Consumption for Reduced Thermal
Dissipation
• Four Operating Modes
• High-Speed Operation Up to 1Mbps
• Slope-Control Mode to Reduce EMI (Up to
500kbps)
• Standby Mode
• Low-Current Shutdown Mode
●● Robust Protection Increases System Reliability
• ±12kV Human Body Model ESD Protection
• Thermal Shutdown
• Current Limiting
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
MAX3051ESA+ -40°C to +85°C
8 SO
MAX3051EKA+T -40°C to +85°C 8 SOT23-8
+Denotes lead(Pb)-free/RoHS-compliant package.
T = Tape and reel
Pin Configuration
TOP
MARK
—
AEKF
TOP VIEW
+
TXD 1
GND 2
VCC 3
MAX3051
RXD 4
8 RS
7 CANH
6 CANL
5 SHDN
SO/SOT23
19-3274; Rev 3; 2/15
1 page  
MAX3051
Timing Diagrams
Figure 1
TXD
VCC/2
VDIFF
tONTXD
0.9V
tONRXD
RXD VCC/2
Figure 1. Timing Diagram
VCC/2
tOFFTXD
0.5V
tOFFRXD
VCC/2
Figure 3
SHDN
VCC/2
VCC/2
VDIFF
tOFFSHDN
tONSHDN
0.5V BUS EXTERNALLY
DRIVEN
RXD VCC/2
Figure 3. Timing Diagram for Shutdown Signal
+3.3V, 1Mbps, Low-Supply-Current
CAN Transceiver
Figure 2
RS
VCC x 0.75
VDIFF
tSBRXDL
RXD
VCC/2
BUS EXTERNALLY
DRIVEN
1.1V
VCC/2
tDRXDL
Figure 2. Timing Diagram for Standby Signal
Figure 4
SHDN
RS
VCC/2
tSHDNSB
0.75V x VCC
Figure 4. Timing Diagram for Shutdown-to-Standby Signal
www.maximintegrated.com
Maxim Integrated │ 5
5 Page 
MAX3051
+3.3V, 1Mbps, Low-Supply-Current
CAN Transceiver
Figure 6
MAX3051
CANH
TXD RL = 120Ω
RXD CANL
TWISTED PAIR
STUB
LENGTH
KEEP AS SHORT
AS POSSIBLE
TRANSCEIVER 1
TRANSCEIVER 2
RL = 120Ω TRANSCEIVER 3
Figure 6. Multiple Receivers Connected to CAN Bus
Typical Operating Circuit
VCC
0.1µF
CAN
CONTROLLER
TX0
RX0
GND
VCC CANH
MAX3051
25kΩ TO 200kΩ
TXD
RXD
CANL
RS GND
120Ω
120Ω
Chip Information
PROCESS: BiCMOS
www.maximintegrated.com
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maximintegrated.com/packages. Note
that a “+”, “#”, or “-” in the package code indicates RoHS status
only. Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
8 SO
8 SOT23
PACKAGE
CODE
S8+4
K8F+4
OUTLINE
NO.
21-0041
21-0078
LAND
PATTERN NO.
90-0096
90-0176
Maxim Integrated │ 11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet MAX3051.PDF ] | |
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