19-2939; Rev 1; 9/03
5V, 1Mbps, Low Supply Current
CAN Transceivers
General Description
The MAX3058/MAX3059 interface between the con-
troller area network (CAN) protocol controller and the
physical wires of the bus lines in a CAN. They are pri-
marily intended for printer and telecom backplane appli-
cations requiring data rates up to 1Mbps. These
devices provide differential transmit capability to the bus
and differential receive capability to the CAN controller.
The MAX3058 output common-mode range is from -7V
to +12V. The MAX3059 output common-mode range is
from 0V to V
CC
. The MAX3059 contains an internal
switch termination resistor that makes it ideal for JetLink
applications.
The MAX3058 features four different modes of opera-
tion: high speed, slope control, standby, and shutdown.
The MAX3059 features three different modes of opera-
tion: high speed, slope control, and shutdown. High-
speed mode allows data rates up to 1Mbps. In
slope-control mode, the slew rate may be optimized for
data rates up 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 transmitter and receiver are
switched off.
The MAX3058/MAX3059 are available in an 8-pin SO
package and are specified over the -40°C to +125°C
temperature range.
Features
o
Four Operating Modes
High-Speed Operation Up to 1Mbps
Slope-Control Mode to Reduce EMI (40kbps to
500kbps)
Low-Current Shutdown Mode
Standby Mode (MAX3058 Only)
o
Thermal Shutdown
o
Current Limiting
o
ESD Protection
±12kV
Human Body Model
MAX3058/MAX3059
Ordering Information
PART
MAX3058ASA
MAX3059ASA
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
PIN-PACKAGE
8 SO
8 SO
Selector Guide
PART
MAX3058ASA
MAX3059ASA
TERMINATION
RESISTOR
No
Yes
STANDBY
Yes
No
Applications
Printers JetLink
Industrial Control Networks
Telecom Backplane
Consumer Applications
Pin Configurations
TOP VIEW
TXD
1
GND
2
8
7
RS
CANH
CANL
SHDN
TXD
1
GND
V
CC
2
8
7
RS
CANH
CANL
TERM
MAX3058
V
CC
3
6
5
3
RXD
4
RXD
4
MAX3059
6
5
SO
SO
Typical Operating Circuit appears at end of data sheet.
________________________________________________________________
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.
5V, 1Mbps, Low Supply Current
CAN Transceivers
MAX3058/MAX3059
ABSOLUTE MAXIMUM RATINGS
V
CC
to GND ..............................................................-0.3V to +6V
TXD, RS, SHDN, TERM to GND................................-0.3V to +6V
RXD to GND .............................................................-0.3V to +6V
CANH, CANL to GND (MAX3058).......................-7.5V to +12.5V
CANH, CANL to GND (MAX3059)..............-0.3V to (V
CC
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
8-Pin SO (derate 5.9mW/°C above +70°C)..................470mW
Operating Temperature Range .........................-40°C to +125°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +5V
±10%,
T
A
= T
MIN
to T
MAX
, R
L
= 60Ω, C
L
= 100pF. Typical values are at V
CC
= +5V and T
A
= +25°C.) (Note 1)
PARAMETER
Supply Current
Quiescent Current Standby Mode
Shutdown Current
Thermal-Shutdown Threshold
Thermal-Shutdown Hysteresis
TXD INPUT LEVELS
High-Level Input Voltage
Low-Level Input Voltage
Input Capacitance
Pullup Resistor
TERM INPUT LEVELS (MAX3059)
High-Level Input Voltage
Low-Level Input Voltage
TERM Pullup Resistor
CANH, CANL TRANSMITTER
Recessive Bus Voltage
V
CANH
,
V
CANL
V
CANH
V
CANL
∆V
CANH
,
V
CANL
V
TXD
= V
CC
, no load
V
TXD
= V
CC
, no load, V
RS
= V
CC
(standby mode), MAX3058
V
TXD
= 0V
V
TXD
= 0V
V
TXD
= 0V, V
CC
= 5V
±5%
Differential Output
(V
CANH
- V
CANL
)
V
TXD
= 0V, V
CC
= 5V
±10%
V
TXD
= 0V, R
L
= 45Ω
V
TXD
= V
CC
, no load
2
-100
2.75
0.5
1.5
1.5
1.2
-500
3
+100
V
CC
-
0.8V
2.25
3
3.2
3
+50
mV
V
V
mV
V
V
V
TRH
V
TRL
R
PU
50
2
0.8
100
V
V
kΩ
V
IH
V
IL
C
IN
R
INTXD
(Note 3)
50
5
2
0.8
20
100
V
V
pF
kΩ
SYMBOL
I
S
I
Q
I
SHDN
V
TSH
Dominant
Recessive
Standby, MAX3058
V
SHDN
= V
CC
, MAX3058
V
TERM
= V
RS
= V
CC
, MAX3059
V
TERM
= 0V, V
RS
= V
CC
, MAX3059
160
25
CONDITIONS
MIN
TYP
40
2
15
MAX
70
5
80
5
10
150
°C
°C
µA
UNITS
mA
µA
CANH Output Voltage
CANL Output Voltage
2
_______________________________________________________________________________________
5V, 1Mbps, Low Supply Current
CAN Transceivers
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5V
±10%,
T
A
= T
MIN
to T
MAX
, R
L
= 60Ω, C
L
= 100pF. Typical values are at V
CC
= +5V and T
A
= +25°C.) (Note 1)
PARAMETER
CANH Short-Circuit Current
CANL Short-Circuit Current
Termination Resistor
RXD OUTPUT LEVELS
RXD High-Output Voltage Level
RXD Low-Output Voltage Level
DC BUS RECEIVER
(Note 2)
MAX3058
Differential Input Voltage
(Recessive)
V
DIFF
MAX3058, V
RS
= V
CC
(standby mode)
MAX3059
MAX3058
Differential Input Voltage
(Dominant)
Differential Input Hysteresis
CANH and CANL Input
Resistance
Differential Input Resistance
MODE SELECTION (RS)
Input Voltage for High Speed
Input Voltage for Standby
Slope-Control Mode Voltage
Slope-Control Mode Current
High-Speed Mode Current
SHUTDOWN (MAX3058)
SHDN Input Voltage High
SHDN Input Voltage Low
SHDN Pulldown Resistor
V
SHDNH
V
SHDNL
R
INDHDN
50
2
0.8
100
V
V
kΩ
V
SLP
V
STBY
V
SHDN
V
SLOPE
I
SLOPE
I
HS
MAX3058
MAX3059
R
RS
= 25kΩ to 200kΩ
R
RS
= 25kΩ to 200kΩ
V
RS
= 0V
0.75 x
V
CC
0.4 x
V
CC
-10
0.6 x
V
CC
-200
-500
0.3 x
V
CC
V
V
V
µA
µA
V
DIFF
V
DIFF(HYST)
R
I
R
DIFF
5
10
MAX3058, V
RS
= V
CC
(standby mode)
MAX3059
-17
-17
-V
CC
0.9
1.1
0.9
100
25
100
+0.5
+0.5
+0.5
17
17
V
CC
mV
kΩ
kΩ
V
V
V
OH
V
OL
I = -100µA
I = 1.6mA
0.8 x
V
CC
V
CC
0.4
V
V
SYMBOL
I
CANHSC
I
CANLSC
R
TERM
CONDITIONS
-7V
≤
V
CANH
≤
0V, MAX3058
V
CANH
= 0V, MAX3059
V
CC
≤
V
CANL
≤
12V, MAX3058
V
CANL
= V
CC
, MAX3059
V
TERM
= V
CC
, MAX3059
MIN
-200
-200
30
30
108
120
TYP
MAX
-30
-30
200
200
132
UNITS
mA
mA
Ω
MAX3058/MAX3059
_______________________________________________________________________________________
3
5V, 1Mbps, Low Supply Current
CAN Transceivers
MAX3058/MAX3059
TIMING CHARACTERISTICS
(V
CC
= +5V
±10%,
R
L
= 60Ω, C
L
= 100pF, T
A
= T
MIN
to T
MAX
. Typical values are at V
CC
= +5V and T
A
= +25°C.)
PARAMETER
Delay TXD to Bus Active,
Figure 1
SYMBOL
CONDITIONS
V
RS
= 0V (≤ 1Mbps)
t
ONTXD
R
RS
= 25kΩ (≤ 500kbps)
R
RS
= 100kΩ (≤ 125kbps)
R
RS
= 200kΩ (≤ 62.5kbps)
V
RS
= 0V (≤ 1Mbps)
Delay TXD to Bus Inactive,
Figure 1
t
OFFTXD
R
RS
= 25kΩ (≤ 500kbps)
R
RS
= 100kΩ (≤ 125kbps)
R
RS
= 200kΩ (≤ 62.5kbps)
V
RS
= 0V (≤ 1Mbps)
Delay Bus to Receiver Active,
Figure 1
t
ONRXD
R
RS
= 25kΩ (≤ 500kbps)
R
RS
= 100kΩ (≤ 125kbps)
R
RS
= 200kΩ (≤ 62.5kbps)
V
RS
= 0V (≤ 1Mbps)
Delay Bus to Receiver Inactive,
Figure 1
t
OFFRXD
R
RS
= 25kΩ (≤ 500kbps)
R
RS
= 100kΩ (≤ 125kbps)
R
RS
= 200kΩ (≤ 62.5kbps)
V
RS
= 0V (≤ 1Mbps)
Differential Output Slew Rate
SR
R
RS
= 25kΩ (≤ 500kbps)
R
RS
= 100kΩ (≤ 125kbps)
R
RS
= 200kΩ (≤ 62.5kbps)
Bus Dominant to RXD Active
Standby to Receiver Active
SHDN to Bus Inactive
SHDN to Receiver Active
RS to Bus Inactive
RS to Receiver Active
TERM to Resistor Switched On
TERM to Resistor Switched Off
ESD Protection
t
DRXDL
t
SBRXDL
t
OFFSHDN
t
ONSHDN
t
OFFSHDN
t
ONSHDN
t
ONRT
t
OFFRT
V
RS
> 0.8 x V
CC
(standby), MAX3058,
Figure 2
BUS dominant, MAX3058, Figure 2
TXD = GND, MAX3058, Figure 3 (Note 4)
BUS dominant, MAX3058, Figure 3 (Note 5)
TXD = GND, MAX3059, Figure 3 (Note 4)
BUS dominant, MAX3059, Figure 3 (Note 5)
V
RS
= V
CC
(part in shutdown), MAX3059,
Figure 4
V
RS
= V
CC
(part in shutdown),
MAX3059, Figure 4
Human Body Model
12
210
500
1100
100
7
1.6
0.8
1
4
1
4
1
4
400
400
µs
µs
µs
µs
µs
µs
ns
ns
±kV
V/µs
150
500
800
100
ns
180
500
1000
80
ns
125
450
700
70
ns
MIN
TYP
MAX
50
ns
UNITS
Note 1:
All currents into device are positive; all currents out of the device are negative. All voltages are referenced to device ground,
unless otherwise noted.
Note 2:
(V
TXD
= V
CC
; CANH and CANL externally driven; -7V < V
CANH
, V
CANL
< 12V for MAX3058; 0V < V
CANH
, V
CANL
< V
CC
for
MAX3059, unless otherwise specified).
Note 3:
Specification guaranteed by design, not production tested.
Note 4:
No other devices on the BUS.
Note 5:
BUS externally driven.
4
_______________________________________________________________________________________
5V, 1Mbps, Low Supply Current
CAN Transceivers
Timing Diagrams
MAX3058/MAX3059
TXD
V
CC
/2
V
CC
/2
RS
V
CC
x 0.75
BUS EXTERNALLY
DRIVEN
t
ONTXD
V
DIFF
0.9V
t
OFFTXD
V
DIFF
0.5V
t
SBRXDL
1.1V
t
ONRXD
t
OFFRXD
t
DRXDL
RXD
RXD
V
CC
/2
V
CC
/2
V
CC
/2
V
CC
/2
Figure
1. Timing Diagram
Figure
2. Timing Diagram for Standby Signal (MAX3058)
500Ω
CANH
SHDN
V
CC
/2
V
CC
/2
CANL
t
OFFSHDN
t
ONSHDN
500Ω
C
L
V
CC
V
DIFF
0.5V
BUS EXTERNALLY
DRIVEN
TERM
V
CC
/2
V
CC
/2
t
ONRT
RXD
V
CC
/2
t
OFFRT
CANH
V
CC
- 1V
V
CC
- 1V
Figure
3. Timing Diagram for Shutdown Signal
Figure
4. Test Circuit and Diagram for TERM Timing (MAX3059)
_______________________________________________________________________________________
5
PCB设计
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
