ATS605LSG Datasheet: Dual Output Differential Speed and Direction Sensor IC





ATS605LSG Datasheet PDF

Part Number ATS605LSG
Description Dual Output Differential Speed and Direction Sensor IC
Manufacture Allegro MicroSystems
Total Page 17 Pages
PDF Download Download ATS605LSG Datasheet PDF

Features: ATS605LSG Dual Output Differential Spee d and Direction Sensor IC Features and Benefits • Two independent digital outputs representing the sensed target s mechanical profile • Optional ou tput with high resolution position and direction detection information • Ai r gap independent switch points • In tegrated back-biasing magnetic circuit • Immunity to external magnetic inte rference • Wide operating voltage ra nge • Single chip IC for high reliab ility • Robust test coverage and rel iability using Scan and IDDQ test metho dologies • Optional Double-Bandwidth configuration Package: 4-pin SIP (suff ix SG) Not to scale Description The AT S605LSG provides a single IC solution t o rotational position sensing applicati ons with a ferrous gear target. The SG package incorporates a rare earth pelle t for ease of manufacturing, consistent performance over temperature, and enha nced reliability. Three Hall elements a re incorporated to create two independent differential channels. These channels are.

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ATS605LSG datasheet
ATS605LSG
Dual Output Differential
Speed and Direction Sensor IC
Features and Benefits
• Two independent digital outputs representing the sensed
target’s mechanical profile
• Optional output with high resolution position and direc-
tion detection information
• Air gap independent switch points
• Integrated back-biasing magnetic circuit
• Immunity to external magnetic interference
• Wide operating voltage range
• Single chip IC for high reliability
• Robust test coverage and reliability using Scan and
IDDQ test methodologies
• Optional Double-Bandwidth configuration
Package: 4-pin SIP (suffix SG)
Not to scale
Description
The ATS605LSG provides a single IC solution to rotational
position sensing applications with a ferrous gear target.
The SG package incorporates a rare earth pellet for ease of
manufacturing, consistent performance over temperature, and
enhanced reliability.
Three Hall elements are incorporated to create two independent
differential channels. These channels are processed by the
IC which contains a sophisticated digital circuit designed
to eliminate the detrimental effects of magnet and system
offsets. Hall 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 open-drain outputs
provide voltage output signals which mirror the sensed target’s
shape, with a phase separation between the two channels
proportionate to the size of the target teeth vs. the Hall element
spacing. This sensor IC system is optimized for a variety of
applications requiring dual phase gear speed and position signal
information or simultaneous high-resolution gear speed and
direction information.
The ATS605 is offered in a lead (Pb) free 4-pin SIP package
with an integrated back-basing magnet with a 100% matte tin
plated leadframe.
Functional Block Diagram
VCC
REGULATOR
(Analog)
REGULATOR
(Digital)
Test
Test
SPEED A
MULTIPLEXED
DIRECTION
SIGNALS
Current
Limit
Switch
OUT A
Hall Amp
OFFSET
ADJUST
AGC
Hall Amp
OFFSET
ADJUST
AGC
FILTER
ADC
FILTER
ADC
Test
Test
SYNCHRONOUS
DIGITAL
CONTROLLER
SPEED B
MULTIPLEXED
XOR SPEED
SIGNALS
Current
Limit
Switch
OUT B
GND
ATS605LSG-DS

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