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型号： MC33797
厂商： 飞思卡尔半导体(中国)有限公司
英文描述： Four Channel Squib Driver IC
中文描述： 四通道爆管驱动IC
文件页数： 14/32页
文件大小： 639K
代理商： MC33797
Analog Integrated Circuit Device Data
Freescale Semiconductor
21
33797
FUNCTIONAL DESCRIPTION
FUNCTIONAL DEVICE OPERATION
During the firing of a squib, significant IR losses may
occur, which could cause a voltage shift across a circuit
board trace. It is recommended that current paths for
discharging the firing supply storage capacitors through the
squib be kept as short as possible and isolated from logic and
diagnostic grounds.
Table 7. Diagnostic Bit Definitions
Hex
Code
Command
Description
Diagnostic Data Out (Available on Next Command)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
00
NOP
0
70
Squib 1A Current
Measurement
Time
SQB_1A
BIT 7
MS
SQB_1A
BIT 6
SQB_1A
BIT 5
SQB_1A
BIT 4
SQB_1A
BIT 3
SQB_1A
BIT 2
SQB_1A
BIT 1
SQB_1A
BIT 0
LS
71
Squib 1B Current
Measurement
Time
SQB_1B
BIT 7
MS
SQB_1B BIT
6
SQB_1B BIT
5
SQB_1B
BIT 4
SQB_1B
BIT 3
SQB_1B
BIT 2
SQB_1B
BIT 1
SQB_1B
BIT 0
LS
72
Squib 2A Current
Measurement
Time
SQB_2A
BIT 7
MS
SQB_2A
BIT 6
SQB_2A
BIT 5
SQB_2A
BIT 4
SQB_2A
BIT 3
SQB_2A
BIT 2
SQB_2A
BIT 1
SQB_2A
BIT 0
LS
73
Squib 2B Current
Measurement
Time
SQB_2B
BIT 7
MS
SQB_2B
BIT 6
SQB_2B
BIT 5
SQB_2B
BIT 4
SQB_2B
BIT 3
SQB_2B
BIT 2
SQB_2B
BIT 1
SQB_2B
BIT 0
LS
79
Squib X Current
Status
0
SQB_2B
Current Limit
Status
SQB_2A
Current Limit
Status
SQB_1B
Current Limit
Status
SQB_1A
Current Limit
Status
7F
Thermal
Shutdown Status
ThermalSD
Thermal
LSDSTAT
_2B
Thermal
HSDSTAT
_2B
Thermal
LSDSTAT
_2A
Thermal
HSDSTAT
_2A
Thermal
LSDSTAT
_1B
Thermal
HSDSTAT
_1B
Thermal
LSDSTAT
_1A
Thermal
HSDSTAT
_1A
C0
VDIAG and High-
Side Safing
Sensor
Diagnostics
RSSLO
RSSHI
VDIAG_2
VDHI
VDIAG_2
VDLO
RSSLO
RSSHI
VDIAG_1
VDHI
VDIAG_1
VDLO
C1
Squib Short-to-
Ground/Short-to-
Battery
Diagnostics
SQB_2B
NO_SH_
GND
SQB_2B
NO_SH_
BATT
SQB_2A
NO_SH_
GND
SQB_2A
NO_SH_
BATT
SQB_1B
NO_SH_
GND
SQB_1B
NO_SH_
BATT
SQB_1A
NO_SH_
GND
SQB_1A
NO_SH_
BATT
C2
Low-Side Driver
Continuity Status
0
SQB_LO_2B_
CONT
SQB_LO_2A
CONT
SQB_LO_1B
CONT
SQB_LO_1A
CONT
C3
Harness Short-to-
Ground/ Short-to-
Battery with
Squib Open (No
Squib Present)
SQB_2B
OPEN
NO_SH_
GND
SQB_2B
OPEN
NO_SH_
BATT
SQB_2A
OPEN
NO_SH_
GND
SQB_2A
OPEN
NO_SH_
BATT
SQB_1B
OPEN
NO_SH_
GND
SQB_1B
OPEN
NO_SH_
BATT
SQB_1A
OPEN
NO_SH_
GND
SQB_1A
OPEN
NO_SH_
BATT
Hex
Code
Command
Description
Diagnostic Data Out (Available on Next Command)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
C5
VFIRE_1B and
VFIRE_2B
Voltage
0
VFIRE_B
Tested
X
VHI
VLO
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相关代理商/技术参数
参数描述
MC33797BPEW 功能描述:功率驱动器IC Four Channel Squib Dr RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube
MC33797BPEWR2 功能描述:功率驱动器IC Four Channel Squib Dr RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube
MC33813AE 功能描述:功率驱动器IC 1 CYL SM ENG CONTROL IC RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube
MC33813AER2 功能描述:功率驱动器IC 1 CYL SM ENG CONTROL IC RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube
MC33814AE 功能描述:功率驱动器IC 2 CYL SM ENG CONTROL IC RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube
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