参数资料
型号: AS5030 DB
厂商: ams
文件页数: 31/44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:
已用 IC / 零件: AS5030
AS5030
Datasheet - A p p l i c a t i o n I n f o r m a t i o n
8.7.1
Low Power Mode and Ultra-low Power Mode
Figure 25. Low Power Mode and Ultra-low Power Mode Connection
R1: optional;
see text
+5V
VDD
VDD
I on
I off
t on
t off
VDD
on/off
C1:
optional;
see text
100n
S
N
CS
CLK
Micro
Controller
DIO
AS5030
VSS C1 C2
VSS
VSS
The AS5030 can be put in Low Power Mode or Ultra-low Power Mode by simple serial commands, using the regular connection for 2-wire or 3-
wire serial data transmission (see Figure 4 and Figure 8 ).
The required serial command is SET PWR MODE (11 H ):
ULP / LPn
0
0
1
1
PSM
0
1
0
1
Mode
Normal operation
Low Power Mode
Normal operation
Ultra-low Power Mode
Note: After returning from Low Power mode or Ultra-low Power mode to normal operation (PSM = 0), if the Hysteresis is enabled (Hys=0), a
general reset must be performed: set bit RST and then clear bit RST using command 15 H .
The two following cases describe the typical loop programmed in the software:
Hys = 0. (1 LSB hysteresis)
1.
2.
3.
4.
5.
6.
7.
8.
Wait for CPU interrupt or delay for next angle read (typ. <3ms in LP mode, typ>3ms in ULP mode)
Wake up (PSM = 0)
Set Reset (rst = 1)
Clear Reset (rst = 0)
Wait 1.5ms (Low Power Mode)
Check if Lock = 1 then read angle
Enable Low Power Mode or Ultra-low Power Mode (PSM=1)
Return to 1
www.ams.com/AS5030
Revision 2.4
31 - 44
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