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參數(shù)資料
| 型號(hào)： | TLE6263G |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | LS CAN, LDO and HS Switch |
| 中文描述： | 儲(chǔ)蓄的CAN，開關(guān)穩(wěn)壓器和HS |
| 文件頁數(shù)： | 15/40頁 |
| 文件大?。?/td> | 811K |
| 代理商： | TLE6263G |
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Final Datasheet TLE 6263
Version 2.08
15
2004-06-07
6.8
Fail Safe feature
The output FSO becomes HIGH when the watchdog is correctly serviced by the
microcontroller for the fourth time. As soon as either an under-voltage reset or watchdog
reset occurs, it is set LOW again. This feature is very useful to control critical applications
independent of the due function of the microcontroller e.g. to disable the power supply
in case of a microcontroller failure.
6.9
Sense Comparator (pin SI) and V
INT
-fail
The sense comparator (early warning function) compares a voltage defined by the user
to an internal reference voltage. Therefore the voltage to be supervised has to be scaled
down by an external voltage divider in order to compare it to the internal sense threshold
V
SIth
. This feature can be used e.g. to supervise the battery voltage in front of the reverse
protection diode. The microcontroller is given a pre-warning before an under-voltage
reset due to low input voltage occurs. The pre-warning is flagged by setting the interrupt
output INT low in normal mode, receive only mode and V
bat
-stand-by mode. In sleep
operation mode the sense function is inactive. Calculation of the voltage divider can be
easily done since the sense input current can be neglected. An internal blanking time
prevents from false triggering due to line transients. Further improvement is possible by
the use of an external ceramic capacitor switched between SI and GND (see
Application
Diagram
Figure 15
).
6.10
V
INT
- and V
CC
-fail flag
To activate the V
INT
supervisor feature the SPI IBIT 6 has to be set HIGH to set an
internal flip-flop. This automatically sets the V
bat
-stand-by OBIT 6 HIGH, too. Should the
internal supply voltage become lower than the internal threshold V
VINT,th
(typ. 2.5V) the
NOT V
INT
-Fail bit becomes LOW to indicate the low voltage condition. All SPI input
registers are set LOW due to a low voltage condition of the internal supply voltage.
Like the wake-up diagnosis the V
INT
-Fail diagnosis can only be monitored in the V
bat
-
stand-by mode. The V
INT
-Fail feature can also be used to give an indication when the
ECU has been changed and therefore a pre-setting routine of the microcontroller has to
be started.
Further to the reset threshold there is another supervisor threshold implemented, to
monitor the output voltage V
CC
. This threshold is called V
VCC,th
(typ. 2.5V). The NOT
V
CC
-Fail feature is monitored via OBIT 7 in the V
bat
-stand-by mode and set, like the NOT
V
INT
-Fail flag, via IBIT 6 (so both fail features are activated with the IBIT 6 but monitored
via OBIT 6 and OBIT 7 during V
bat
-stand-by).
In the receive-only mode both fail bits cause the interrupt output INT to go low.
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| TLE6263GNUMA1 | 制造商:Infineon Technologies AG 功能描述:CAN 125KBd Sleep/Standby 5V Automotive 28-Pin DSO 制造商:Infineon Technologies AG 功能描述:BODY SYSTEM ICS - Tape and Reel |
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| TLE6270R | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 POWERTRAIN RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| TLE6270RAUMA1 | 制造商:Infineon Technologies AG 功能描述:QUAD LOW SIDE INJECTOR DRIVER 制造商:Infineon Technologies AG 功能描述:ENGINECONTROL_IC - Tape and Reel 制造商:Infineon Technologies AG 功能描述:IC DRIVER INJECTOR QUAD DSO-36 |
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