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參數(shù)資料
| 型號： | L8229 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 1.5 A, PDSO24 |
| 封裝： | LEAD FREE, SSO-24 |
| 文件頁數(shù)： | 21/42頁 |
| 文件大小： | 858K |
| 代理商： | L8229 |
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SPI programming
L8229
9
SPI programming
On power up, the device is by default in sleep mode. Before coming out from sleep, the
device needs to be programmed to drive either Stepping or DC motor. This is controlled by
W2 bit 14. Default is stepping motor drive.
The device can be awoken from the sleep mode by means of the bit 3 of W1.
The device can be set in brake mode ( both outputs are LL) by means of W1 bit 15. Please
note that Brake mode overcomes Nsleep mode.
9.1
Current Control
Current level in the motor is set by means of a combination of Vref (ext or int), Rsense and
DAC control bits.
The max current is set as follows:
Imax = Vref / (Range x Rsense)
Vref can be set to be internal at 2V or externally applied to VREF1 and VREF2 pins. On
power up, the default is the internal 2V.
Vref voltage is divided according to Range value that is defined by W2 bit 6 to be either 10
or 5.
Table 22.
Motor mode selected by W2
Bit 14
Mode
0
Stepping motor
1
DC motor
Table 23.
Nsleep mode selected by W1
Bit 3
Mode
0
Sleep
1Normal
Table 24.
Brake mode selected by W1
Bit 15
Mode
0Normal
1Brake
Table 25.
Vref mode selected by W2
Bit 5
Mode
0
Internal ref. 2V
1
External ref. (7.5V max)
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相關(guān)代理商/技術(shù)參數(shù) |
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| L822HW | 制造商:SUPERWORLD 制造商全稱:Superworld Electronics 功能描述:HIGH CURRENT MOLDED POWER INDUCTORS |
| L822HW-1R0MF | 制造商:SUPERWORLD 制造商全稱:Superworld Electronics 功能描述:HIGH CURRENT MOLDED POWER INDUCTORS |
| L822HW-1R5MF | 制造商:SUPERWORLD 制造商全稱:Superworld Electronics 功能描述:HIGH CURRENT MOLDED POWER INDUCTORS |
| L822HW-2R2MF | 制造商:SUPERWORLD 制造商全稱:Superworld Electronics 功能描述:HIGH CURRENT MOLDED POWER INDUCTORS |
| L822HW-3R3MF | 制造商:SUPERWORLD 制造商全稱:Superworld Electronics 功能描述:HIGH CURRENT MOLDED POWER INDUCTORS |
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