參數(shù)資料
型號(hào): MCZ33797EK
廠商: 飛思卡爾半導(dǎo)體(中國(guó))有限公司
英文描述: Four Channel Squib Driver IC
中文描述: 四通道爆管驅(qū)動(dòng)IC
文件頁數(shù): 31/34頁
文件大?。?/td> 290K
代理商: MCZ33797EK
Analog Integrated Circuit Device Data
Freescale Semiconductor
31
33797
FUNCTIONAL DEVICE OPERATION
PROTECTION AND DIAGNOSIS FEATURES
When either a $82 or a $83 command is issued, the
previous transistor test will stop to prevent coinciding high-
and low-side FET drive transistors from turning “ON”. This
prevents high- and low-side drivers from being activated
simultaneously.
Note
The high- or low-side squib driver test is capable of
checking a code sequence, allowing any combination of high-
or low-side drivers to be tested.
The diagnostic squib driver bit (HSDSTAT_X or
LSDSTAT_X) will be set to “1” if the squib driver did
not
activate (turn “ON”) during the diagnostic test. The diagnostic
squib driver bit (HSDSTAT_X or LSDSTAT_X) will be set to
“0” if the squib driver did activate (turn “ON”) during the
diagnostic test. Diagnostic data will be shifted from the shift
register during the next read/write operation.
The diagnostic squib driver register will be set / cleared to
“0” when the unlock command is loaded ($82 or $83 loaded
with rising edge of CS).
A diagnostic bit set to “0” indicates standard squib driver
transistor operation.
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