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参数资料
| 型号： | AS5030 DB |
| 厂商： | ams |
| 文件页数： | 32/44页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO AS5030 |
| 标准包装： | 1 |
| 传感器类型： | 磁性，旋转位置 |
| 传感范围： | 360° |
| 接口： | USB |
| 电源电压： | 5V USB 或 7.5V |
| 嵌入式： | 是，MCU，8 位 |
| 已供物品： | 板 |
| 已用 IC / 零件： | AS5030 |
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AS5030
Datasheet - A p p l i c a t i o n I n f o r m a t i o n
Hys = 1. (No hysteresis)
1. Wait for CPU interrupt or delay for next angle read (typ. <3ms in LP mode, typ>3ms in ULP mode)
2. Wake up (PSM = 0)
3. Wait 0.01ms (Low Power Mode)
4. Check if Lock = 1 then read angle
5. Enable Low Power Mode or Ultra-low Power Mode (PSM=1)
6. Return to 1
The difference between Low Power Mode and Ultra-low Power Mode is the current consumption and the wake-up time to switch back to active
operation.
Mode
Active operation
Low Power Mode
Ultra-low Power Mode
Current Consumption
(typ.)
14 mA
1.4 mA
30 μA
Wake-up Time to Active
Operation
1.0 ms (without AGC)
3.8 ms (with locked AGC)
0.15 ms
0.5 ms
In both Reduced Power Modes, the AS5030 is inactive. The last state, e.g. the angle, AGC value, etc. is frozen and the chip starts from this
frozen state when it resumes active operation. This method provides much faster start-up than a “cold start” from zero. If the AS5030 is cycled
between active and reduced current mode, a substantial reduction of the average supply current can be achieved. The minimum dwelling time in
active mode is the wake-up time. The actual active time depends on how much the magnet has moved while the AS5030 was in reduced power
mode. The angle data is valid, when the status bit LOCK has been set. Once a valid angle has been measured, the AS5030 can be put back to
reduced power mode. The average power consumption can be calculated as:
(EQ 6)
I avg =
I active ? t on + I power _ down ? t off
t on + t off
sampling interval = t on + t off
Where:
I avg average current consumption
I active : current consumption in active mode
I power_down :current consumption in reduced power mode
t on :time period during which the chip is operated in active mode
t off : time period during which the chip is in reduced power mode
Example: Ultra-low Power Mode; sampling period = one measurement every 10ms.
System constants = I active = 14mA, I power_down = 30μA, ton(min) = 500μs (startup from Ultra-low Power Mode):
(EQ 7)
I avg =
14 mA ? 500 μ s + 30 μ A * 9,5 ms
500 μ s + 9 , 5 ms
= 729 μ A
See Figure 27 for an overview table of the average current consumption in the various reduced power modes.
Reducing Power Supply Peak Currents.
An optional RC-filter (R1/C1) may be added to avoid peak currents in the power supply line when the AS5030 is toggled between active and
reduced power mode. R1 must be chosen such that it can maintain a VDD voltage of 4.5V ~ 5.5V under all conditions, especially during long
active periods when the charge on C1 has expired. C1 should be chosen such that it can support peak currents during the active operation
period. For long active periods, C1 should be large and R1 should be small.
www.ams.com/AS5030
Revision 2.4
32 - 44
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AS5030-TS_EK_AB | 功能描述:AS5030 - Magnetic, Rotary Position Sensor Evaluation Board 制造商:ams 系列:- 零件状态:有效 传感器类型:磁性，旋转位置 感应范围:360° 接口:串行 灵敏度:- 电压 - 电源:5V 嵌入式:否 所含物品:板 使用的 IC/零件:AS5030 标准包装:1 |
| AS5030-TS_EK_DB | 功能描述:AS5030 - Magnetic, Rotary Position Sensor Evaluation Board 制造商:ams 系列:- 零件状态:有效 传感器类型:磁性，旋转位置 感应范围:360° 接口:USB 灵敏度:- 电压 - 电源:5V USB 或 7.5V 嵌入式:是，MCU，8 位 所含物品:板 使用的 IC/零件:AS5030 标准包装:1 |
| AS50-330K-RC | 制造商:ALLIED 制造商全称:Allied Components International 功能描述:Axial Shielded Inductors |
| AS50-331K-RC | 制造商:ALLIED 制造商全称:Allied Components International 功能描述:Axial Shielded Inductors |
| AS50-332K-RC | 制造商:ALLIED 制造商全称:Allied Components International 功能描述:Axial Shielded Inductors |
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