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| 型号： | MCZ33800EK |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 28/39页 |
| 文件大小： | 0K |
| 描述： | IC ENGINE CTRL SW/DVR 54-SOIC |
| 标准包装： | 26 |
| 应用： | 自动 |
| 电流 - 电源： | 10mA |
| 电源电压： | 5 V ~ 36 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 54-BSSOP（0.295"，7.50mm 宽）裸露焊盘 |
| 供应商设备封装： | 54-SOICW-EP |
| 包装： | 管件 |
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FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
Table 15. CCD1 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
CCD1 Command Address
Diag DTHR
Pull Up DIS
9 BIT DAC Command Data
CCD1 Control
1
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0 = Pull Down
Current Source
1 = Pull Up Current
Source
CCD1 Command Address
CCD1
Retry
ON/
OFF
CCD1 TLim
DIS
EN
Dither Amplitude
Dither Frequency
CCD1 Frequency
1
0
1
1
1
1
0
0
1
0
1
1
0
1
0
0
& Amplitude
Next SO Response OvrVlt Reset
Trim
VCAL Open Short Open Short
Fault
Fault
Fault
Fault
Fault
Fault
Fault
Fault
(Message 2)
TLim or
Set (19)
Status Fault
Fault
Fault
Fault Status Status Status Status Status Status Status Status
0 = No Fault, 1 =
Fault
Notes
CAL Flt
int=0 CCD2 CCD2 CCD1 CCD1 OUT8 OUT7 OUT6 OUT5 OUT4 OUT3 OUT2 OUT1
ext=1
19.
20.
21.
22.
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.
CCD1 DISable bit allows the CCD1 driver to operate as a standard 1.0A low side driver. With CCD1_DIS bit = 1 the CCD1 function is
disabled.
Table 16. CCD1 Dither Frequency Select
Table 17. CCD1 Dither Amplitude Select
Bits 3210
0000
0001
0010
0011
0100
0101
0110
0111
1000
Dither Frequency
Dither Off
50Hz
100Hz
150Hz
200Hz
250Hz
300Hz
350Hz
400Hz
Bits 654
000
001
010
011
100
101
110
111
Dither Amplitude
Dither Off
50.4mA
100.8mA
151.2mA
201.6mA
252.0mA
302.4mA
352.8mA
CCD2 CONSTANT CURRENT CONTROLLER
1001
1010
1011
1100
1101
1110
1111
450Hz
500 Hz
133Hz
166Hz
233Hz
266Hz
No change
The CCD2 constant current controller is a switching
hysteretic current controller with a superimposed dither. The
controller is designed to provide a programmable constant
current through a solenoid valve. By controlling current
through the solenoid valve, fluid flow control is achieved.
The master SPI device sends 16-bit command words to
the 33800 device (see Table 18 ). The master device sets up
the output current based on the CCD2 Control command.
The IC is capable of sinking an average output current from
0.0mA to 232mA (without dither). If operating the device with
Notes: Frequencies above 250Hz are +- 20%
dither, the DAC + Dither value must be less than 232mA or
33800
Analog Integrated Circuit Device Data
28
Freescale Semiconductor
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