參數(shù)資料
型號(hào)： TJA1050
廠商： NXP Semiconductors N.V.
英文描述： CAN High-Speed Transceiver(CAN高速收發(fā)器)
中文描述： CAN高速收發(fā)器（的CAN高速收發(fā)器）
文件頁(yè)數(shù)： 27/31頁(yè)
文件大?。?/td> 254K
代理商： TJA1050
TJA1050 - CAN High-Speed Transceiver
Application Note
AN00020
Philips Semiconductors
27
$750'6914-#52'%65
This chapter deals with items like the maximum number of nodes, the maximum bus line length and
topology aspects. Especially the topology appears to have a significant influence on the system
performance.
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The number of nodes, which can be connected to a bus, depends on the minimum load resistance a
transceiver is able to drive. The TJA1050 transceiver provides an output drive capability down to a
minimum load of R
= 45
for V
CC
> 4.75V. The overall bus load is defined by the termination
resistance R
, the bus line resistance R
and the transceiver′s differential input resistance R
. The DC
circuit model of a bus system is shown in Figure 9.1. For worst case consideration the bus line resistance
R
is considered to be zero. This leads to the following relations for calculating the maximum number of
nodes.:
PLQ
PLQ
PLQ
PD[
PLQ
5
PLQ
5
/
GLII
7
GLII
+
7
5
Q
5
5
×
>
×
×
<
PLQ
PLQ
PLQ
PD[
7
/
GLII
5
5
5
Q
WHUPLQDWLRQ
WHUPLQDWLRQ
'&
&$1B+
&$1B/
5
7
5
7
5
:
5
:
EXVZLULQJ
9
GLIILQ
RXWSXWRI
WUDQVPLWWLQJQRGH
9
GLIIRXW
LQSXWRIUHFHLYLQJ
QRGH
QRGHLQSXWV
5
GLII
Q
5
GLII
5
GLII
1RGH
1RGHQ
1RGHQ
Figure 9.1 DC circuit model for a bus system according to ISO11898
Table 9.1 gives the maximum number of nodes for two different termination resistances. Notice that
connecting a large number of nodes requires relatively large termination resistances.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TJA1050T 制造商:NXP Semiconductors 功能描述: 制造商:NXP Semiconductors 功能描述:LAN Transceiver, Single, 8 Pin, Plastic, SOP
TJA1050T/CM,118 功能描述:CAN 接口集成電路 RoHS:否 制造商:Texas Instruments 類(lèi)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
TJA1050T/H/V,112 功能描述:網(wǎng)絡(luò)控制器與處理器 IC CAN 1MBd Silent 5V 8-Pin RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
TJA1050T/H/V,118 功能描述:網(wǎng)絡(luò)控制器與處理器 IC CAN 1MBd Silent 5V 8-Pin RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
TJA1050T/N,112 功能描述:網(wǎng)絡(luò)控制器與處理器 IC HIGH SPEED CAN TRANSCEIVER RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
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