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參數(shù)資料
| 型號： | TLE 6263 |
| 廠商： | SIEMENS AG |
| 英文描述： | CAN-LDO-ASIC(控制區(qū)域網(wǎng)絡(luò)低壓差用于汽車電路的專用集成電路) |
| 中文描述： | 的CAN - LDO穩(wěn)壓器，專用集成電路（控制區(qū)域網(wǎng)絡(luò)低壓差用于汽車電路的專用集成電路） |
| 文件頁數(shù)： | 13/37頁 |
| 文件大?。?/td> | 839K |
| 代理商： | TLE 6263 |
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confidential
Preliminary Data
TLE 6263
13
version: 2.00 date: 19.12.00
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
in parallel to R2 (see application circuit
fig.12
).
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
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 implemented another supervisor threshold for the
output voltage V
CC
. It
’
s typical threshold is 2.5V. The NOT V
CC
-Fail feature is monitored
via OBIT 7 in the Vbat stand-by mode and set like the NOT V
CC
-Fail Flag via IBIT 6.
In the receive-only mode both Fail bits cause the interrupt output INT to go low.
Wake-Up Inputs WK1, WK2
In addition to a wake-up from sleep mode via the bus lines CANH or CANL it is also
possible to wake-up the TLE6263 from low power mode via the wake-up inputs WK1 and
WK2. The wake-up inputs are sensitive to a transition of the voltage level, either from
high to low or the other way round. They are active in all operation modes. In the normal
mode the current logic level at WK1/2 is monitored via the SPI (see
table 4 and 6
).
A positive or negative voltage edge at WK1/2 in V
bat
-stand-by mode or sleep mode
immediately results in setting the output RxD low to signal a wake-up. After a wake-up
via WK1/2 the transmission of the SPI diagnosis word in the V
bat
-stand-by mode shows
the logic level that has caused the wake-up. To get the current voltage levels at WK1/2
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLE6263-3G | 功能描述:CAN 接口集成電路 BODY SYSTEM ICS 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 |
| TLE62633GRBNT | 制造商:Infineon Technologies AG 功能描述:SBC'S |
| TLE62633GXUMA1 | 制造商:Infineon Technologies AG 功能描述:System Basic Chip T/R 制造商:Infineon Technologies AG 功能描述:BODY SYSTEM ICS - Tape and Reel 制造商:Infineon Technologies AG 功能描述:IC SYSTEM BASIS CHIP DSO-28 |
| TLE6263G | 功能描述:CAN 接口集成電路 BODY SYSTEM ICS 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 |
| 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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