參數(shù)資料
型號(hào)： 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(yè)數(shù)： 14/37頁(yè)
文件大?。?/td> 839K
代理商： TLE 6263
confidential
Preliminary Data
TLE 6263
14
version: 2.00 date: 19.12.00
in the V
bat
-stand-by mode the internal wake flip-flop has to be reseted by the IBIT1 for
each transmission. As long as IBIT1 is set high or the internal wake flip-flop is reseted
respectively, in the V
bat
-stand-by mode the RxD output is blocked to signal a new wake-
up event via the CAN-bus or the wake-up inputs.
Further to the continues sensing at the wake-up inputs a cyclic sense feature is possible.
When the OUTHS cyclic sense feature is selected via the SPI IBIT 4 the high side switch
as well as the WK1/2 inputs are periodically activated by the TLE6263 in the sleep and
V
bat
-stand-by mode.
When switching the TLE6263 into sleep mode (cyclic sense feature activated) the
voltage level at the wake-inputs is sensed 2 times to initialize the reference voltage.
Should this initialisation fail (2 samples are unequal) the device is automatically set in
V
bat
-stand-by mode and the initialisation error is shown on the OBIT 5. To enter the sleep
mode now directly from the V
bat
-stand-by mode, the internal wake flip-flop has to be
reseted by the IBIT 1.
Interrupt output INT
Like the reset output, the interrupt output is a low active output. It is used to monitor low
voltage conditions at the sense input in normal mode and stand-by mode (see
table 8
).
In the receive-only mode the V
INT
-fail flag and V
CC
supervisor are monitored.
High Side Switch
The high side output OUTHS is able to switch loads up to 150 mA. Its on-resistance is
1.0
typ. @ 25
°
C. This switch is controlled via the SPI input bits 4 and 5. In normal
mode, receive-only mode and V
bat
-stand-by mode the high side output is switched on
and off, respectively via the SPI input bit 5.
To supply external wake-up circuits in sleep mode and V
bat
-stand-by mode the output
OUTHS can be periodically switched on by the TLE6263 itself. In order to activate this
cyclic sense feature the SPI IBIT 4 has to be set high. The auto-timing period then is typ.
65 ms, the on-time is typ. 1 ms. Should there be any over-current condition at the switch
in the sleep mode (cyclic sense activated) or V
bat
-stand-by mode a wake-up is flagged
via the RxD output. The over-current condition is monitored on the SPI OBIT 6 in normal
operation mode.
The SPI OBIT 0 flags a thermal pre-warning of the high side switch. By this the
microcontroller is able to reduce the power dissipation of the TLE6263 by switching off
functions of minor priority until the temperature threshold of the thermal shutdown is
reached. Further OUTHS is protected against short circuit and overload. As soon as the
under-voltage condition of the supply voltage is met (V
S
< V
UVOFF
), the switch is
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