AS5247 datasheet(2/37 Pages) AMSCO

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AS5247 – 2

ams Datasheet: 2014-Jun-20 [v1-02]

G e n e ral D e sc rip t ion

Applications

The AS5247 has been designed to support BLDC motor

commutation for the most challenging and safety-critical

automotive applications (AEC-Q100 grade 0 automotive

qualified) such as electric power steering (EPS), transmission

(gearbox, actuator), brake (actuator) and starter & alternator.

Block Diagram

The functional blocks of this device for reference are

shown below:

Figure 2:

AS5247 Block Diagram

Versatile choice of the interface

Independent output interfaces: SPI, ABI, UVW, PWM

No programmer needed (via SPI command)

Zero position, configuration programmable

Supports safety-critical applications

Self-Diagnostics & redundancy

Lower system costs (no shielding)

Immune to external stray field

Benefits

Features

VDD3V3_T

A/D

Volatile Memory

SPI

LDO

AS5247

VDD_T

GND_T

CSn_T

MOSI_T

SCL_T

MISO_T

I_T/PWM_T

A_T

B_T

W_T / PWM_T

U_T

V_T

Analog

Front-End

ATAN

(CORDIC)

AGC

OTP

INTERPOLATOR

Hall

Sensors

PWM Decoder

Selectable

On I or W

ABI

Dynamic Angle

Error

Compensation

W_B / PWM_B

U_B

V_B

I_B/PWM_B

A_B

B_B

CSn_B

MOSI_B

SCL_B

MISO_B

UWV

GND_B

VDD_B

VDD3V3_B

AS5247 Scheda tecnica(PDF) 2 Page - ams AG

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