AS5130ASST datasheet(12/40 Pages) AMSCO

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AS5130

Data Sheet - D e ta i l e d D e s c r i p t i o n

Serial 3-Wire Connection (OTP Programming Option)

This mode provides with an option to configure the serial interface for programming the OTP register. Using a clock

input (CLK), DIO (Data) in/output and CS pin, it is possible to write and read out data from the OTP Register. The data

transfer is done via the DIO channel. For programming, the PROG pin must be connected to +8V. Analog readout for

trimming verification is mandatory.

Figure 6. Serial Data Transmission in Continuous Readout Mode

1-Wire PWM Connection

If the line (PWM) is used as angle output, the total number of connections can be reduced to three, including the

supply lines. This type of configuration is especially useful for remote sensors. Low power mode is not possible in this

configuration. If the AS5130 angular data is invalid, the PWM output will remain at low state.

Figure 7. Data Transmission with Pulse Width Modulated (PWM) Output

The minimum PWM pulse width tON (PWM = high) is 1 LSB @ 0º (Angle reading = 00H). 1LSB = nom. ,0.556µs. The

PWM pulse width increases with 1LSB per step. At the maximum angle 358.6º (Angle reading = FFH), the pulse width

tON (PWM = high) is 256 LSB and the pause width tOFF (PWM = low) is 1 LSB. This leads to a total period (tON + tOFF)

of 257LSB.

AS5130

100n

VSS

+5V

AVDD

+8V

VDD

DCLK

DIO

PROG

VSS

AS5130

VDD

VSS

micro

controller

VDD

VSS

micro

controller

100n

VSS

+5V

AVDD

PWM

AS5130

VDD

VSS

AS5130ASST Datasheet(PDF) 12 Page - ams AG

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