Direction Sensor. ATS17501 Datasheet

ATS17501 Sensor. Datasheet pdf. Equivalent

Part ATS17501
Description Dual Output Differential Speed and Direction Sensor
Feature ATS17501 Dual Output Differential Speed and Direction Sensor IC FEATURES AND BENEFITS • High-speed.
Manufacture Allegro
Datasheet
Download ATS17501 Datasheet



ATS17501
ATS17501
Dual Output Differential Speed and Direction Sensor IC
FEATURES AND BENEFITS
• High-speed switching bandwidth up to 40 kHz
• Two independent output channels with options for high
resolution XOR speed, pulse, and direction protocol
• ASIL B(D) compliant (ISO 26262), assessment pending
• Optional fault detection output protocol
• Immune to common external magnetic disturbance
• EEPROM enables factory traceability throughout product
life cycle
• Ideally suited for asynchronous electric motor applications
2
-
PACKAGE:
Not to scale
4-Pin SIP
(suffix SG)
DESCRIPTION
The ATS17501 is a single IC solution designed for rotational
position sensing of a ferrous gear target found in automotive
and industrial electric motor applications (often with specific
application and safety requirements). The IC is housed in an
SG package that incorporates a rare-earth magnetic pellet for
ease of manufacturing, consistent application performance
over temperature, and enhanced reliability.
Three Hall elements are incorporated to create two independent
differential channels. These inputs are processed by digital
circuits and robust algorithms designed to eliminate the
detrimental effects of magnetic and system offsets, and to
address false output transitions caused by target vibrations
in electric motors at startup and low speed operation. The
differential signals are used to produce a highly accurate
speed output and, if desired, provide information on the
direction of rotation.
Advanced calibration techniques are used to optimize signal
offset and amplitude. This calibration, combined with the
digital tracking of the signal, results in accurate switch points
over air gap, speed, and temperature.
The IC can be programmed for a variety of applications
requiring dual-phase gear speed and position signal
information or simultaneous high-resolution gear speed
and direction information. It can be configured to enable
Fault Detection mode for ASIL B(D) utilization (assessment
pending).
The ATS17501 SG package is a lead (Pb) free 4-pin SIP
package with an integrated back-biasing magnet and a 100%
matte-tin-plated lead frame.
Functional Block Diagram
Hall
Elements
EEPROM
Temperature
Sensor
Diagnostics
Oscillator
Gain
Analog
Filter
ADC
Gain
Analog
Filter
ADC
Digital
Controller
Analog
Regulator
Digital
Regulator
VCC
OUTA
OUTB
GND
ATS17501-DS, Rev. 2
MCO-0000734
Advance Information Datasheet • Subject to Change Without Notice
March 19, 2020



ATS17501
ATS17501
Dual Output Differential Speed and Direction Sensor IC
SELECTION GUIDE [1]
Part Number
ATS17501PSGATN-SDFUYJ
ATS17501PSGATN-VDFUYJ
ATS17501PSGATN-WDFUYJ
Packing
800 pieces per 13-inch reel
[1] Not all selectable combinations are available, contact Allegro for additional
selections and packing options.
Advance Information Datasheet
Subject to Change Without Notice
March 19, 2020
W – OUTA: Inverse Direction, OUTB: XOR Speed
Operating Temperature Range
Allegro Identifier and Device Type
Allegro MicroSystems
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
2





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