参数资料
| 型号： | MCZ33810EK |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 20/37页 |
| 文件大小： | 0K |
| 描述： | IC IGNITION INJECTOR 32-SOIC |
| 标准包装： | 42 |
| 应用： | 自动 |
| 电流 - 电源： | 10mA |
| 电源电压： | 4.5 V ~ 36 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-BSOP（0.295"，7.50mm 宽）裸露焊盘 |
| 供应商设备封装： | 32-SOICW 裸露焊盘 |
| 包装： | 管件 |
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FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
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Secondary clamp (secondary clamp bit)
Soft shutdown enable (SoftShutDn bit)
Ignition ignition coil current amplifier gain (Gain Sel bit)
Overlapping dwell disable (Overlap Dwell Disable bit)
Maximum dwell enable (MaxDwellEn bit)
Maximum dwell timer (MaxDwellTimer bits)
End of spark filter timer value
Spark Command address and data bits are listed in
V PWR = 16.0V
Default settings
Begin spark threshold V IH = V PWR + 21V
End spark threshold V IL = V PWR +5.5V
The pulse width of the SPKDUR signal is measured by the
MCU timer/input capture port to determine the actual spark
duration. Spark duration information is then used by the MCU
spark control algorithm to optimize the dwell time.
NOTE: Gate driver outputs programmed to be General
Table 7. End Spark Threshold
Purpose Gate Drivers are not affected by the Spark
Commands.
SPARK DURATION SIGNAL
The Spark Duration is defined as the beginning of current
flow to the end of current flow across the spark plug gap.
Because the extremely high-voltage ignition coil secondary
output is difficult to monitor, corresponding lower voltage
signals generated on the ignition coil primary are often used.
Spark Command
Bit<b1,b0>
00
01
10
11
End Spark Threshold (VIL)
VPWR + 2.75
VPWR + 5.5
VPWR + 8.2
VPWR + 11.0
The FBx pins monitor the ignition coil primary voltage (IGBT
Collector) through a 10 to 1 voltage divider. When the IGBT
is disabled, the rise in the FBx signal indicates a sparkout
condition is occurring at the spark plug gap.
The device considers the initial thresholds for spark
duration to be V IH = V PWR + 21 V for rising edge as measured
on the collector of the IGBT. The spark duration falling edge
reference is programmable via SPI through the End Spark
Threshold bits 0 and 1 (See Table 7 ).
Figure 5 illustrates a typical ignition event with dwell time
and spark duration indicated.
Figure 5. Ignition Coil Charge and Spark Event
OPEN SECONDARY TIMER
A fault due to open in the ignition coil secondary circuit can
be determined by waveforms established on the ignition coil
primary during a spark event. The spark event is initiated by
the turn off of the IGBT. The voltage on the collector of the
IGBT rises up to the IGBT’s internal collector to gate clamp
voltage (typically 400 volts). Collector to gate clamp events
normally last 5.0 to 50 μ s. In an open ignition coil secondary
fault condition, the collector to gate clamp event lasts much
longer. The oscilloscope waveform in Figure 6 and Figure 7
compare a normal spark signature with that of an open
secondary fault condition signature.
Figure 6. Normal Spark Event
Ignition Coil Current,
5.0A/div
DWELL Time
SPKDUR~3.0ms
Channel 1: GINx IGBT Gate Drive
Channel 2: IGBT Collector Voltage
Channel 3: IGBT Current @ 5.0A/Div
33810
Analog Integrated Circuit Device Data
20
Freescale Semiconductor
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCZ33810EK/R2 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Automotive Engine Control IC |
| MCZ33810EKR2 | 功能描述:马达/运动/点火控制器和驱动器 Ignition Injector Driver RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| MCZ33810R2 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Automotive Engine Control IC Quad injector driver with Parallel/SPI control |
| MCZ33811EG | 功能描述:电流和电力监控器、调节器 SOLENOID MONITOR IC RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| MCZ33811EGR2 | 功能描述:电流和电力监控器、调节器 SOLENOID MONITOR IC RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
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