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參數(shù)資料
| 型號： | MC33797 |
| 廠商： | 飛思卡爾半導(dǎo)體(中國)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IC |
| 文件頁數(shù)： | 13/32頁 |
| 文件大小： | 639K |
| 代理商： | MC33797 |
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Analog Integrated Circuit Device Data
20
Freescale Semiconductor
33797
FUNCTIONAL DESCRIPTION
FUNCTIONAL DEVICE OPERATION
The second write is to actually fire the desired driver. The
four most significant bits of the second write are used to
establish a parity with the four most significant bits of the first
write. The four least significant bits are the data bits, and
each bit represents a squib driver or squib driver pair. If there
is a parity mismatch of the four most significant bits, the data
bits will be ignored and the squib drivers will not have their
status changed. The 2-byte write sequence must then be
started again. During the first write, when the drivers are
armed, all diagnostic functions are cleared.
Once fired, a driver can only be turned off by one of the
following:
Sending a valid 2-byte write sequence through the shift
register.
Having the reset terminal pulled low.
Having the thermal shutdown limit exceeded (once
minimum firing duration requirement has been met;
refer to Note 4 in the Maximum Ratings table, page 5).
Having the FEN terminal pulled low. Note that the code
sequences allow any combination of drivers to be
turned on or off.
Once fired, the current limit measurement register
increments when the squib current is measured and is above
the IMEAS threshold during the timer activation.
The FEN_1 or FEN_2 terminal must be high to enable
firing of the drivers. If fire command is active and the FEN (1
or 2) terminal is pulled low, the FET drivers will turn off
(assuming the latch and hold function is not in effect; refer to
paragraph entitled FEN_1 and FEN_2, page 28). If fire
command is active and the FEN (1 or 2) terminal is pulled
high, the FET driver will turn on.
Byte #1
Byte #2
Squib B
High Side
Squib B
Low Side
Squib A
High Side
Squib A
Low Side
Squib 2B
Squib 2A
Squib 1B
Squib A1
A0
ARM Squib Drivers 1A and 1B
A1
ARM Squib Drivers 2A and 2B
A2
ARM Squib Drivers 1A, 1B, 2A, 2B
50
OFF
51
OFF
ON
OFF
ON
52
OFF
ON
OFF
ON
OFF
53
OFF
ON
OFF
ON
54
OFF
ON
OFF
ON
OFF
55
OFF
ON
OFF
ON
OFF
ON
OFF
ON
56
OFF
ON
OFF
ON
OFF
57
OFF
ON
OFF
ON
58
ON
OFF
ON
OFF
59
ON
OFF
ON
OFF
ON
5A
ON
OFF
ON
OFF
ON
OFF
ON
OFF
5B
ON
OFF
ON
OFF
ON
5C
ON
OFF
ON
OFF
5D
ON
OFF
ON
OFF
ON
5E
ON
OFF
ON
OFF
5F
ON
Table 6. Squib Firing Commands
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參數(shù)描述 |
|---|---|
| MC33797BPEW | 功能描述:功率驅(qū)動器IC Four Channel Squib Dr RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| MC33797BPEWR2 | 功能描述:功率驅(qū)動器IC Four Channel Squib Dr RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| MC33813AE | 功能描述:功率驅(qū)動器IC 1 CYL SM ENG CONTROL IC RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| MC33813AER2 | 功能描述:功率驅(qū)動器IC 1 CYL SM ENG CONTROL IC RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| MC33814AE | 功能描述:功率驅(qū)動器IC 2 CYL SM ENG CONTROL IC RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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