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參數(shù)資料
| 型號(hào)： | MCP201 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | LIN Transceiver with Voltage Regulator(帶有集成Vreg的線收發(fā)器) |
| 中文描述： | LIN收發(fā)器和穩(wěn)壓器（帶有集成Vreg的線收發(fā)器） |
| 文件頁(yè)數(shù)： | 7/27頁(yè) |
| 文件大?。?/td> | 417K |
| 代理商： | MCP201 |
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2003 Microchip Technology Inc.
Preliminary
DS21730C-page 7
1.5.7
FAULT/SLPS
FAULT Detect Output, Slope Select Input.
This pin is usually in Output mode. Its state is defined
as shown in Table 1-5.
The state of this pin is internally sampled during power-
on of V
BAT
. Once V
BAT
has reached a stable level
(approx. 6 VDC) and V
REG
is stable at 4.75-5.25 VDC,
the state of this pin selects which slew rate profile to
apply to the LIN output. It is only during this time that
the pin is used as an input (the output driver is off dur-
ing this time). The slope will stay selected until the next
V
BAT
power-off/power-on sequence, regardless of any
power-down, wake-up or SLEEP events. Only a V
BAT
rising state will cause a sampling of the FAULT/SLPS
pin. The Slope selection will be made irrespective of
the state of any other pin.
The FAULT/SLPS pin is connected to either V
REG
or
V
SS
through a (approx. 100 k
) resistor to make the
slope selection. This large resistance allows the FAULT
indication function to overdrive the resistor in normal
operation mode.
If the FAULT/SLPS is high (‘
1
’), the normal slope shap-
ing is selected (dv/dt = 2 V/μs). If FAULT/SLPS is low
(‘
0
’) during this time, the alternate slope shaping is
selected (dv/dt = 4 V/μs)
TABLE 1-4:
FAULT/SLPS SLOPE
SELECTION DURING POR
TABLE 1-5:
FAULT/SLPS TRUTH TABLE
FAULT/SLPS
Slope Shaping
H
L
Normal
Alternate
(1)
Note 1:
This mode does not conform to LIN bus
specification Ver. 1.3.
Note:
This pin is ‘
0
’ whenever the internal circuits
have detected a short or thermal excursion
and have disabled the LIN output driver.
Note:
Every time TX is toggled, a Fault condition
will occur for the length of time, depending
on the bus load. The Fault time is equal to
the propagation delay.
TXD In
RXD Out
LIN bus I/O
Thermal
Override
FAULT/SLPS Out
Comments
L
H
L
H
x
H
H
L
L
x
V
BAT
V
BAT
GND
GND
V
BAT
OFF
OFF
OFF
OFF
ON
L
H
H
L
L
Bus shorted to battery
Bus recessive
Bus dominant
Bus shorted to ground
Thermal excursion
Legend:
x = don’t care
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCP201-E | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:LIN Transceiver with Voltage Regulator |
| MCP201-E/P | 功能描述:LIN 收發(fā)器 W/ On Board Vreg RoHS:否 制造商:NXP Semiconductors 工作電源電壓: 電源電流: 最大工作溫度: 封裝 / 箱體:SO-8 |
| MCP201-E/SN | 功能描述:LIN 收發(fā)器 W/ On Board Vreg RoHS:否 制造商:NXP Semiconductors 工作電源電壓: 電源電流: 最大工作溫度: 封裝 / 箱體:SO-8 |
| MCP201-EMF | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:LIN Transceiver with Voltage Regulator |
| MCP201-EP | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:LIN Transceiver with Voltage Regulator |
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