Datasheet > AS5245HQFT

AS5245HQFT

更新时间： 2024-10-01 06:37:51

品牌	Logo	应用领域
艾迈斯 - AMSCO		编码器
页数	文件大小	规格书
33页	901K
描述
Programmable 360º Magnetic Angle Encoder with Absolute SSI and PWM Output

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AS5245HQFT 数据手册

Data Sheet

AS5245

Programmable 360º Magnetic Angle Encoder with Absolute SSI and

PWM Output

ꢀ

Two digital 12-bit absolute outputs

1 General Description

The AS5245 is a contactless magnetic angle encoder for accurate

measurement up to 360º and includes two AS5145 devices in a

punched stacked leadframe.

Quadrature A/B (10- or 12-bit) and Index output signal

User programmable zero position

Failure detection mode for magnet placement monitoring and

loss of power supply

It is a system-on-chip, combining integrated Hall elements, analog

front end and digital signal processing in a single device.

ꢀ

“Red-Yellow-Green” indicators display placement of magnet in

Z-axis

To measure the angle, only a simple two-pole magnet, rotating over

the center of the chip is required. The magnet may be placed above

or below the IC.

ꢀ

Tolerant to magnet misalignment and air gap variations

Wide temperature range: - 40ºC to +150ºC

Unique Chip Identifier

The absolute angle measurement provides instant indication of the

magnet’s angular position with a resolution of 0.0879º = 4096

positions per revolution. This digital data is available as a serial bit

stream and as a PWM signal.

Fully automotive qualified to AEC-Q100, grade 0

Small package: QFN 32 LD (7x7)

An internal voltage regulator allows operation of the AS5245 from

3.3V or 5.0V supplies.

3 Applications

The AS5245 is fully automotive qualified to AEC-Q100, grade 0.

The AS5245 is ideal for applications with an angular travel range

from a few degrees up to a full turn of 360º. The device is suitable for

Automotive applications like Throttle position sensors, Gas/brake

pedal position sensing, Headlight position control, Contactless rotary

position sensing, Front panel rotary switches and Replacement of

potentiometer.

2 Key Features

ꢀ

Contactless high resolution rotational position encoding over a

full turn of 360º

Figure 1. AS5245 Block Diagram

VDD3V3

MagINCn

MagDECn

VDD5V

LDO 3.3V

PWM

Interface

Sin

Ang

DSP

Absolute

Interface

(SSI)

Cos

Mag

Hall Array

CSn

Frontend

Amplifier

CLK

OTP

PDIO

DTEST1_A

DTEST2_B

Incremental

Interface

Mux

AS5245

Mode_Index

Note: This Block Diagram presents only one die

www.austriamicrosystems.com/AS5245

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