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參數(shù)資料
| 型號(hào)： | L9950TR |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | DOOR ACTUATOR DRIVER |
| 中文描述： | 門執(zhí)行器驅(qū)動(dòng) |
| 文件頁數(shù)： | 14/23頁 |
| 文件大小： | 231K |
| 代理商： | L9950TR |
L9950
14/23
Bit
Input Register 1 (write)
Status Register 1 (read)
Name
Comment
Name
Comment
22
OUT11 OC
Recovery Enable
In case of an over-current event the
over-current status bit (Status
Register 0) is set and the output is
switched off. If the over-current
Recovery Enable bit is set the
output will be automatically
reactivated after a delay time
resulting in a PWM modulated
current with a programmable duty
cycle (Bit 21 of Input Data Register
0).
Depending on occurance of
Overcurrent Event and internal
clock phase it is possible that one
recovery cycle is executed even if
this bit is set to zero.
VS overvoltage
In case of an overvoltage or
undervoltage event the
corresponding bit is set and
the outputs are deactivated.
If VS voltage recovers to
normal operating conditions
outputs are reactivated
automatically.
21
OUT10 OC
Recovery Enable
VS undervoltage
20
OUT9 OC
Recovery Enable
Thermal shutdown
In case of an thermal
shutdown all outputs are
switched off. The
microcontroller has to clear
the TSD bit by setting the
Reset Bit to reactivate the
outputs.
19
OUT8 OC
Recovery Enable
Temperature warning
This bit is for information
purpose only. It can be used
for a thermal management by
the microcontroller to avoid a
thermal shutdown.
18
OUT7 OC
Recovery Enable
Not Ready Bit
After switching the device
from standby mode to active
mode an internal timer is
started to allow chargepump
to settle before the outputs
can be activated. This bit is
cleared automatically after
start up time has finished.
Since this bit is controlled by
internal clock it can be used
for synchonizing testing
events(e.g. measuring filter
times).
Table 9. SPI - Input Data and Status Register
(continued)
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