參數(shù)資料
型號(hào)： L9230DIE1
廠商： 意法半導(dǎo)體
英文描述： SPI CONTROLLED H-BRIDGE
中文描述： 可控的SPI H橋
文件頁(yè)數(shù)： 13/25頁(yè)
文件大?。?/td> 218K
代理商： L9230DIE1
13/25
L9230
DIAGNOSTIC
The Diagnosis-Mode can be selected between SPI-Diagnosis and Status-Flag Diagnosis.
The choise of the Diagnosis-Mode is selected by the voltage-level on pin 12 (DMS Diagnosis Mode Selection).
DMS = GND Status-Flag
DMS = Vcc SPI-Diagnostic
For the connection of pins SI, SO, SS and SCK/SF see Fig. 10 respectively Fig. 11.
Status-Flag
The Status-Flag showes the condition tristate“.
At the following fault-cases the output-stages switches in tristate and set the status-flag from high to low.
- Short circuit of OUT1 or OUT2 against V
S
or GND
- Short circuit between OUT1 and OUT2
- Overcurrent
- Overtemperature
- Undervoltage on V
S
In cause of short circuit or overcurrent, the fault will be stored.
The output stage switches in tristate and the status-flag is set from high level to low-level if the specified value
is exceeded.
If the voltage level changes from high to low on DI or from low to high on EN, the output stage switches on again
and the status-flag is reset to high-level.
In cause of overtemperature the fault will be stored.
The output stage switches in tristate and the status-flag is set from high level to low-level if the specified value
is exceeded.
the voltage level changes from high to low on DI or from low to high on EN, the output stage switches on again
and the status-flag is reset to high-level.
In cause of undervoltage on V
Batt
the output stage switches in tristate and the status-flag is set from high level
to low-level if the specified value is fallen. If the voltage has risen about the specified value again, the output
stage switches on again and the status-flag is reset to high-level.
The maximum current which can flow under normal operating conditions is limited to typical I
max.
= 6,6A .
When the maximum current value is reached, the output stages are switched tristate for a fixed time.
According to the time-constant the current decreases exponentially until the next switch-on occurs.
At the end if the fixed time the output stage switches on again and the status-flag is reset to high-level.
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