Angle Sensor. A1332 Datasheet

A1332 Sensor. Datasheet pdf. Equivalent

Part A1332
Description Precision Hall Effect Angle Sensor
Feature A1332 Precision Hall Effect Angle Sensor IC with I2C Interface FEATURES AND BENEFITS • 360° contac.
Manufacture Allegro
Datasheet
Download A1332 Datasheet




A1332
A1332
Precision Hall Effect Angle Sensor IC with I2C Interface
FEATURES AND BENEFITS
• 360° contactless high resolution angle position sensor
• CVH (Circular Vertical Hall) technology
• Digital I2C output
• Refresh Rate: 32 µs, 12-bit resolution
• Automotive temperature range -40 to 85C as well as -40
to 125C
• Two types of linearization schemes offered: harmonic
linearization and segmented linearization
• Linearization features enable use in off-axis applications
• EEPROM with Error Correction Control (ECC) for
trimming calibration
• 1 mm thin (TSSOP-14) package
• Automatic calibration features maintain angle accuracy
over airgap
Package: 14-pin TSSOP (LE suffix)
Not to scale
DESCRIPTION
TheA1332 is a 360° contactless high resolution programmable
magnetic angle position sensor IC. It is designed for digital
systems using an I2C interface.
This system-on-chip (SoC) architecture includes a front
end based on Circular Vertical Hall (CVH) technology,
programmable microprocessor based signal processing, and
digital I2C interface. Besides providing full-turn angular
measurement, the A1332 also provides scaling for angle
measurement applications less than 360°. It includes on-chip
EEPROM technology for flexible programming of calibration
parameters.
Digital signal processing functions, including temperature
compensation and gain/offset trim, as well as advanced output
linearization algorithms, provide an extremely accurate and
linear output for both end of shaft applications, as well as
off‑axis applications.
The A1332 is ideal for automotive applications requiring high
speed 360° angle measurements, such as: electronic power
steering (EPS), transmission, torsion bar, and other systems
that require accurate measurement of angles. The A1332
linearization schemes were designed with challenging off-axis
applications in mind.
The device is offered in a 14-pin TSSOP (LE) package, which
has a single die. The package is lead (Pb) free, with 100%
matte tin leadframe plating.
V+
VCC (also
programming)
BYP
CBYP(VCC)
CBYP(BYP)
TEST
SDA
SCL
SA0
SA1
DGND
AGND
To all internal circuits
Regulator
Analog Front End
Multisegment
CVH Element
Digital Subsystem
Diagnostics
I2C
Interface
32-bit
Microprocessor
EEPROM
VCC
(Programming)
SOC Die
ADC
A1332-DS, Rev. 6
MCO-0000464
Functional Block Diagram
February 4, 2019



A1332
A1332
Precision Hall Effect Angle Sensor IC with I2C Interface
Selection Guide
Part Number
Application
A1332ELETR-T
I2C digital output
A1332KLETR-T
I2C digital output
*Contact Allegrofor additional packing options
Package
Single die,
14-pin TSSOP
Single die,
14-pin TSSOP
Packing*
4000 pieces per 13-in. reel
Operating Ambient Tem-
perature, TA
–40°C to 85°C
4000 pieces per 13-in. reel
–40°C to 125°C
Specifications
Absolute Maximum Ratings
Thermal Characteristics
Pin-out Diagram and Terminal List
Operating Characteristics Table
Functional Description
Overview
Operation
Diagnostic Features
Programming Modes
Application Information
Table of Contents
3 Serial Interface Description
3 Magnetic Target Requirements
3 On-Axis Applications
3 Off-Axis Applications
4 Effect of Orientation on Signal
6 Linearization
6 Correction for Eccentric Orientation
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8
8
10
Harmonic Coefficients
PCB Layout
Typical Characteristics
Package Outline Drawing
Refer to the Programming Reference addendum for information on programming the device.
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Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
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