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參數(shù)資料
| 型號： | MCZ33800EK |
| 廠商： | 飛思卡爾半導(dǎo)體(中國)有限公司 |
| 英文描述： | Engine Control Integrated Circuit |
| 中文描述： | 發(fā)動機(jī)控制集成電路 |
| 文件頁數(shù)： | 29/39頁 |
| 文件大?。?/td> | 461K |
| 代理商： | MCZ33800EK |
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Analog Integrated Circuit Device Data
Freescale Semiconductor
29
33800
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
greater than 0.0mA. Commands outside of this command
range will automatically lock out dither.
Programming the solenoid current begins by sending the
CCD2 Control command. The command consists of an
control address, Diagnostic Pull-up Enable bit (Diag_pu_EN),
Dither Disable bit (DTHR_DIS), and a 9-bits of data for digital
to analog conversion (DAC). The data is received and the
DAC provides bias for a comparator to produce a threshold
level. The comparator drives a switch control circuit which
generates a frequency modulated signal for the output drive.
The differential voltage across the sense resistor provides
the feedback necessary to maintain the desired output
current. The output current is continuously monitored as a
differential voltage across the internal sense resistor. When
the current is recirculation and the driver is in the off state, the
current will decay to the lower limit switch point. When the
current reaches the lower limit, the driver will turn on to
increase the current until the upper limit switch point is
reached. The output current will continue to switch between
the switch points, resulting in the desired average current.
The switch points are set to a fixed +/-5% of the commanded
current. The switching frequency and accuracy are
dependent upon the load inductance and resistance, battery
voltage, dither amplitude and frequency, switch points, and
the commanded current.
Current dither is a method by which the average current is
increased and decreased through the solenoid valve. The
33800 allows the user to program the frequency and
amplitude of the dither control. Dither amplitude is
implemented by increasing and decreasing the DAC by the
programmed dither value. The rate at which the value is
changed is set by the programmed dither frequency. When
reprogramming the dither amplitude or dither frequency, the
update will occur on the start of a positive cycle.
The maximum value of the output (DAC + Dither) must be
less than 232mA. When a greater value is programmed, the
device will disable dither on the output. Similarly, the
minimum value of the output (DAC - Dither) must be greater
than 0.0mA. Requesting a lower value will disable dither on
the output.
Table 18. CCD2 Constant Current Controller Commands
Command
Control Address
Command Bits
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
CCD2 Command Address
Diag
Pull-
up
DTHR
DIS
9 BIT DAC Command Data
CCD2 Control
0 = Pull-down Current Source
1 = Pull-up Current Source
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
CCD2 Command Address
CCD2
Retry
Dither Amplitude
Dither Frequency
CCD2 Frequency & Amplitude
1
1
0
0
1
1
X
X
X
0
1
1
0
1
0
0
Next SO Response (Message 2)
0 = No Fault, 1 = Fault
OvrVlt
,TLim
or
CAL
Flt
Reset Trim
Set
(23)
VCAL
Status
int=0
ext=1
Open
Fault
CCD2
Short
Fault
CCD2
Open
Fault
CCD1
Short
Fault
CCD1
Fault
Status
OUT8
Fault
Status
OUT7
Fault
Status
OUT6
Fault
Status
OUT5
Fault
Status
OUT4
Fault
Status
OUT3
Fault
Status
OUT2
Fault
Status
OUT1
Notes
23.
24.
25.
Trim Set bit indicates (0 = untrimmed, 1 = trimmed)
VCAL Status bit indicates when internal or external supply is used. VCAL Bit = 0 indicates external, VCAL Bit = 1indicates internal.
Reset Bit indicates the device has performed a POR.
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| MCZ33800EKR2 | 功能描述:馬達(dá)/運(yùn)動/點火控制器和驅(qū)動器 AUTO ENG CONTROL IC RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| MCZ33800R2 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Engine Control Integrated Circuit |
| MCZ33810EK | 功能描述:馬達(dá)/運(yùn)動/點火控制器和驅(qū)動器 Ignition Injector Driver RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| MCZ33810EK/R2 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Automotive Engine Control IC |
| MCZ33810EKR2 | 功能描述:馬達(dá)/運(yùn)動/點火控制器和驅(qū)動器 Ignition Injector Driver RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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