参数资料
型号: AS5045-ASST
厂商: ams
文件页数: 23/34页
文件大小: 0K
描述: IC ENCODER PROG 12-BIT 16-SSOP
应用说明: AS5000 Series Magnet Selection Guide
AS5000 Series Magnets for Extended Vertical Range
标准包装: 1
传感范围: 45mT ~ 75mT
类型: 线性,旋转编码器 - 可编程
电源电压: 3 V ~ 3.6 V,4.5 V ~ 5.5 V
电流 - 电源: 21mA
电流 - 输出(最大): 4mA
输出类型: 数字式,PWM,12 位串行
特点: 可编程
工作温度: -40°C ~ 125°C
封装/外壳: 16-SSOP(0.209",5.30mm 宽)
供应商设备封装: 16-SSOP
包装: 标准包装
产品目录页面: 804 (CN2011-ZH PDF)
其它名称: AS5045-ASSTDKR
AS5045
Data Sheet
13 3.3V / 5V Operation
The AS5045 operates either at 3.3V ±10% or at 5V ±10%. This is made possible by an internal 3.3V Low-Dropout
(LDO) Voltage regulator. The internal supply voltage is always taken from the output of the LDO, meaning that the
internal blocks are always operating at 3.3V.
For 3.3V operation, the LDO must be bypassed by connecting VDD3V3 with VDD5V (see Figure 16 ).
For 5V operation, the 5V supply is connected to pin VDD5V, while VDD3V3 (LDO output) must be buffered by a
2.2...10μF capacitor, which is supposed to be placed close to the supply pin (see Figure 16 ).
The VDD3V3 output is intended for internal use only It must not be loaded with an external load (see Figure 16 ).
Figure 16. Connections for 5V / 3.3V Supply Voltages
5V Operation
100n
VDD3V3
2.2...10μF
3.3V Operation
VDD3V3
100n
VDD5V
LDO
Internal
VDD
VDD5V
LDO
Internal
VDD
I
DO
I
DO
4.5 - 5.5V
N
T
E
R
F
PWM
CLK
CSn
3.0 - 3.6V
N
T
E
R
F
PWM
CLK
CSn
A
C
E
A
C
E
VSS
Prog
VSS
Prog
A buffer capacitor of 100nF is recommended in both cases close to pin VDD5V. Note that pin VDD3V3 must always
be buffered by a capacitor. It must not be left floating, as this may cause an instable internal 3.3V supply voltage
which may lead to larger than normal jitter of the measured angle.
www.austriamicrosystems.com
Revision 1.7
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