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參數(shù)資料
| 型號(hào)： | MAX3050ASA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 網(wǎng)絡(luò)接口 |
| 英文描述： | 【80V Fault-Protected, 2Mbps, Low Supply Current CAN Transceivers |
| 中文描述： | DATACOM, INTERFACE CIRCUIT, PDSO8 |
| 封裝： | 0.150 INCH, SOIC-8 |
| 文件頁(yè)數(shù)： | 10/12頁(yè) |
| 文件大?。?/td> | 360K |
| 代理商： | MAX3050ASA |
M
AutoShutdown (MAX3050)
To manage power consumption, AutoShutdown puts
the device into shutdown mode after the device has
been inactive for a period of time. The value of an
external capacitor (C
SHDN
) connected to
SHDN
deter-
mines the threshold of inactivity time, after which the
AutoShutdown triggers. Floating
SHDN
allows the
MAX3050 to automatically change from active mode to
shutdown.
Use a 100nF capacitor as C
SHDN
for a typical thresh-
old of 20ms. Change the capacitor value according to
the following equation to change the threshold time
period.
V
SHDN
is the threshold of
SHDN
guaranteed to be less
than 2V in the
Electrical Characteristics
table. Drive
SHDN
high to turn the MAX3050 on and disable
AutoShutdown.
When the MAX3050 is in shutdown mode, only the
wake-up comparator is active, and normal bus commu-
nication is ignored. The remote master of the CAN sys-
tem wakes up the MAX3050 with a signal greater than
9V on CANH. Internal circuitry in the MAX3050 puts the
device in normal operation by driving
SHDN
high.
The MAX3057 does not have the AutoShutdown feature.
Driver Output Protection
The MAX3050/MAX3057 have several features that pro-
tect them from damage. Thermal shutdown switches off
the device and puts CANH and CANL into high imped-
ance if the junction temperature exceeds +160
°
C.
Thermal protection is needed particularly when a bus
line is short circuited. The hysteresis for the thermal
shutdown is approximately 20
°
C.
Additionally, a current-limiting circuit protects the trans-
mitter output stage against short-circuits to positive and
negative battery voltage. Although the power dissipa-
tion increases during this fault condition, this feature
prevents destruction of the transmitter output stage.
C
nF
time s
V
SHDN
V
CC
SHDN
(
)
.
(
)
)
=
×
(
0 02
±80V Fault-Protected, 2Mbps, Low Supply
Current CAN Transceivers
10
______________________________________________________________________________________
FFT
500mV/div
CANH - CANL
1V/div
Figure 5. FFT Dominant Bus at 2Mbps
FFT
200mV/div
CANH - CANL
1V/div
Figure 6. FFT Recessive Bus at 2Mbps
FFT
500mV/div
CANH - CANL
1V/div
Figure 7. FFT Dominant Bus at 500kbps
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX3057ASA | 【80V Fault-Protected, 2Mbps, Low Supply Current CAN Transceivers |
| MAX3051 | +3.3V, 1Mbps, Low-Supply-Current CAN Transceiver |
| MAX3051EKA-T | +3.3V, 1Mbps, Low-Supply-Current CAN Transceiver |
| MAX3053 | 【80V Fault-Protected, 2Mbps, Low Supply Current CAN Transceiver |
| MAX3053ASA | 【80V Fault-Protected, 2Mbps, Low Supply Current CAN Transceiver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX3050ASA+ | 功能描述:CAN 接口集成電路 80V Fault-Protected 2Mbps RoHS:否 制造商:Texas Instruments 類型:Transceivers 工作電源電壓:5 V 電源電流: 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX3050ASA+ | 制造商:Maxim Integrated Products 功能描述:IC CAN TXRX 2MBPS 1/1 5.5V SOIC-8 |
| MAX3050ASA+T | 功能描述:CAN 接口集成電路 80V Fault-Protected 2Mbps RoHS:否 制造商:Texas Instruments 類型:Transceivers 工作電源電壓:5 V 電源電流: 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX3050ASA-T | 功能描述:CAN 接口集成電路 RoHS:否 制造商:Texas Instruments 類型:Transceivers 工作電源電壓:5 V 電源電流: 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX3051EKA | 制造商:Maxim Integrated Products 功能描述:+3.3V 1MBPS LOW-SUPPLY-CURRENT CA - Rail/Tube |
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