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%, R
L
= 60Ω, RS = GND, T
A
= T
MIN
to T
MAX
. Typical values are at V
CC
= +5V and T
A
= +25°C.)
PARAMETER
SYMBOL
CONDITIONS
Dominant (Note 1)
Supply Current
I
S
Dominant no load
Recessive (Note 1)
Recessive no load
Quiescent Current Standby Mode
Shutdown Supply Current
Thermal-Shutdown Threshold
Thermal-Shutdown Hysteresis
TXD INPUT LEVELS
High-Level Input Voltage
Low-Level Input Voltage
High-Level Input Current
Pullup Resistor
CANH, CANL TRANSMITTER
Recessive Bus Voltage
V
CANH,
V
CANL
I
LO
V
CANH
V
CANL
DV
CANH
,
V
CANL
I
SC
I
SC
V
TXD
= V
CC
, no load
-2V < V
CANH
, V
CANL
< +7V
SHDN
= GND, V
TXD
= V
CC
2
-2
-4
3.0
0
1.5
1.5
-500
-200
200
±2
±3
±2.5
kV
+50
3
+1
mA
+4
V
CC
2.0
5
V
V
V
mV
mA
mA
V
V
IH
V
IL
I
IH
R
INTXD
V
TXD
= V
CC
1
20
2
0.4
V
V
µA
kΩ
I
Q
I
QSHDN
V
RS
= V
CC
SHDN
= GND
125
15
160
20
3.6
MIN
TYP
56
MAX
72
6
5.5
5.5
260
30
µA
µA
°C
°C
mA
UNITS
Off-State Output Leakage
CANH Output Voltage
CANL Output Voltage
Differential Output
(V
CANH
- V
CANL
)
CANH Short-Circuit Current
CANL Short-Circuit Current
ESD CANH, CANL (Note 2)
-80V < V
CANH
, V
CANL
< +80V
SHDN
= GND, V
TXD
= V
CC
V
TXD
= 0
V
TXD
= 0
V
TXD
= 0
V
TXD
= 0, R
L
= 45Ω
V
TXD
= V
CC
, no load
V
CANH
= -5V
V
CANL
= 18V
Human Body Model
IEC1000-4-2 Air Gap
IEC1000-4-2 Contact Discharge
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Maxim Integrated
│
2
MAX3050/MAX3057
±80V Fault-Protected, 2Mbps, Low-Supply
Current CAN Transceivers
DC Electrical Characteristics
(continued)
(V
CC
= +5V ±10%, R
L
= 60Ω, RS = GND, T
A
= T
MIN
to T
MAX
. Typical values are at V
CC
= +5V and T
A
= +25°C.)
PARAMETER
Differential Input Voltage
(Recessive)
Differential Input Voltage
(Dominant)
Differential Input Hysteresis
CANH Input Wake-Up Voltage
Threshold
RXD High-Level Output Voltage
RXD Low-Level Output Voltage
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
Standby Mode
High-Speed Mode Current
SHUTDOWN
SHDN
Input Pullup Resistor
SHDN
Input Voltage High
R
INSHDN
MAX3057
500
2
900
kΩ
V
V
SLP
V
STBY
V
SLOPE
I
SLOPE
I
STBY
I
HS
V
RS
= 0
R
RS
= 24kΩ to 180kΩ
R
RS
= 24kΩ to 180kΩ
0.75 x
V
CC
0.4 x
V
CC
-10
-10
0.6 x
V
CC
-200
+10
-500
0.3 x
V
CC
V
V
V
µA
µA
µA
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DC Bus Receiver (V
TXD
= V
CC
; CANH and CANL externally driven; -2V < V
CANH
, V
CANL
< +7V, unless otherwise specified)
V
DIFF
V
DIFF
(HYST)
-7V < V
CANH
, V
CANL
< +12V
-7V < V
CANH
, V
CANL
< +12V
-1.0
0.9
150
+0.5
3.3
V
V
mV
V
DIFF
V
CANH
(SHDN)
SHDN
= GND, V
TXD
= V
CC
(MAX3050)
I = -100µA
I = 10mA
I = 5mA
6
0.8 x
V
CC
9
V
V
V
OH
V
OL
R
I
R
DIFF
0.8
0.4
5
10
25
100
V
kΩ
kΩ
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Maxim Integrated
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3
MAX3050/MAX3057
±80V Fault-Protected, 2Mbps, Low-Supply
Current CAN Transceivers
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.) (Figures 1, 2, and 3)
PARAMETER
TIMING
V
RS
= 0 (2Mbps)
Minimum Bit Time
t
BIT
R
RS
= 24kΩ (500kbps)
R
RS
= 100kΩ (125kbps)
R
RS
= 180kΩ (62.5kbps)
Delay TXD to Bus Active
Delay TXD to Bus Inactive
t
ONTXD
t
OFFTXD
V
RS
= 0
V
RS
= 0
V
RS
= 0 (2Mbps)
Delay TXD to Receiver Active
t
ONRXD
R
RS
= 24kΩ (500kbps)
R
RS
= 100kΩ (125kbps)
R
RS
= 180kΩ (62.5kbps)
V
RS
= 0 (2Mbps)
Delay TXD to Receiver Inactive
t
OFFRXD
R
RS
= 24kΩ (500kbps)
R
RS
= 100kΩ (125kbps)
R
RS
= 180kΩ (62.5kbps)
R
RS
= 24kΩ (500kbps)
Differential Output Slew Rate
Bus Dominant to RXD Low
Time to Wake Up: CANH > 9V
Time to Sleep Mode when Bus Is
Recessive
t
WAKE
t
SHDN
SR
R
RS
= 100kΩ (125kbps)
R
RS
= 180kΩ (62.5kbps)
Standby mode
SHDN
= GND, V
TXD
= V
CC
(MAX3050)
C
SHDN
= 100nF (MAX3050)
10
14
7
1.6
10
10
47
µs
µs
ms
V/µs
0.5
2
8
25
40
75
120
0.4
1.6
5.0
130
0.45
1.6
5.0
µs
ns
µs
ns
ns
ns
µs
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Note 1:
As defined by ISO, bus value is one of two complementary logical values: dominant or recessive. The dominant value
represents the logical 1 and the recessive represents the logical 0. During the simultaneous transmission of the dominant
and recessive bits, the resulting bus value is dominant. For MAX3050 and MAX3057 values, see the truth table in the
Transmitter
and
Receiver
sections under
Detailed Description.
Note 2:
The ESD structures do not short out CANH and CANL under an ESD event while -7V < CANH, CANL < +12V.
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Maxim Integrated
│
4
MAX3050/MAX3057
±80V Fault-Protected, 2Mbps, Low-Supply
Current CAN Transceivers
V
CC
120Ω
0.1µF
CAN
CONTROLLER
TX0
RX0
30pF
GND
RS
24kΩ TO 180kΩ
GND
V
CC
CANH
TXD
MAX3050
MAX3057
100pF
CANL
(100nF)
RXD
SHDN
120Ω
( ) ARE FOR MAX3050 ONLY.
Figure 1. AC Test Circuit
TXD
9V
CANH
CANL
DOMINANT
0.9V
CANH - CANL
0.5V RECESSIVE
V
CC
/2
CANH
V
SHDN
= 2V
V
SHDN
RXD
V
CC
/2
t
ONTXD
t
ONRXD
t
OFFTXD
t
OFFRXD
t
WAKE
Figure 2. Timing Diagram for Dynamic Characteristics
SMT贴片机是表面贴装技术（Surface Mount Technology）中的重要设备，它的性能状态对电子制造的质量和效率有着决定性的影响。因此，对SMT贴片机的主要指标性能进行定期检测非常重要。以下是一些主要的检测项目： 定位精度：定位精度是SMT贴片机的核心性能指标，它直接影响到贴片的准确性。通常，我们通过重复测量贴片机在X、Y轴上的移动误差来检测其定位精度。 贴片速度：贴片速度...[详细]
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