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
, unless otherwise noted. 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)
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
ΔV
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
-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
ESD CANH, CANL (Note 2)
IEC1000-4-2 Air-Gap Discharge
IEC1000-4-2 Contact Discharge
±2
±3
± 2.5
kV
2
-2
-4
3.0
0
1.5
1.5
-500
-200
200
+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
0.4
V
V
µA
kΩ
I
QSHDN
SHDN
= GND
15
160
20
3.6
MIN
TYP
56
MAX
72
6
5.5
5.5
30
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
www.maximintegrated.com
Maxim Integrated
│
2
MAX3053
±80V Fault-Protected, 2Mbps,
Low Supply Current CAN Transceiver
DC Electrical Characteristics (continued)
(V
CC
= +5V ±10%, R
L
= 60Ω, RS = GND, T
A
= T
MIN
to T
MAX
, unless otherwise noted. 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 Wakeup Voltage
Threshold
RXD High-Level Output Voltage
RXD Low-Level Output Voltage
CANH and CANL Input
Resistance
Differential Input Resistance
Slope Control
Input Voltage for High Speed
Slope Control Mode Voltage
Slope Control Mode Current
High-Speed Mode Current
AutoShutdown
SHDN
Input Voltage High
SHDN
Input Voltage Low
2
0.5
V
V
V
SLP
V
SLOPE
I
SLOPE
I
HS
R
RS
= 24kΩ to 180kΩ
R
RS
= 24kΩ to 180kΩ, V
CC
= +5.0V
V
RS
= 0
0.4 x
V
CC
-10
0.3 x
V
CC
0.6 x
V
CC
-200
-500
V
V
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
V
DIFF(HYST)
V
CANH(SHDN)
SHDN
= GND, V
TXD
= V
CC
V
OH
V
OL
R
I
R
DIFF
I = -100µA
I = 10mA
I = 5mA
5
10
6
0.8 x
V
CC
0.8
0.4
25
100
-7V < V
CANH
, V
CANL
< +12V
-7V < V
CANH
, V
CANL
< +12V
-1.0
0.9
150
9
+0.5
3.3
V
V
mV
V
V
V
kΩ
kΩ
www.maximintegrated.com
Maxim Integrated
│
3
MAX3053
±80V Fault-Protected, 2Mbps,
Low Supply Current CAN Transceiver
Timing Characteristics
(V
CC
= +5V ±10%, R
L
= 60Ω, C
L
= 100pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V and
T
A
= +25°C.) (Figures 1, 2, and 3)
PARAMETER
SYMBOL
CONDITIONS
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
Time to Wakeup: CANH > 9V
Time to Sleep Mode when Bus Is
Recessive
|SR|
t
WAKE
t
SHDN
R
RS
= 100kΩ (125kbps)
R
RS
= 180kΩ (62.5kbps)
SHDN
= GND, V
TXD
= V
CC
C
SHDN
= 100nF
10
14
7
1.6
10
47
µs
ms
V/µs
MIN
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
TYP
MAX
UNITS
Note 1:
As defined by ISOSHDN, 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 MAX3053 values, see the truth table in the
Transmitter
and
Receiver
sections.
Note 2:
The ESD structures do not short out CANH and CANL under an ESD event while -7V < CANH, CANL < +12V.
便携式医疗设备的特殊性决定了它们应该是对用户友好的、必须工作在无菌环境下，并且空间占用小、耗能低。 同时，便携式医疗设备还需要足够的计算能力以便处理医疗数据，能够连接到无线或有线接口以便记录和发送数据。从设计人员的角度考虑，上述需求需要低功耗的单片机（MCU）和数字信号控制器（Digital Signal Controller，DSC）。 正是有了嵌入式处理器，设计人员才有可能设...[详细]
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