A1334: Precision Hall-Effect Angle Sensor IC

This part is in production but has been determined to be NOT FOR NEW DESIGN. Sale of this part is currently restricted to existing customer programs already using the part. The part should not be purchased for new programs or designed into new applications. Samples are no longer available. Date of status change: December 5, 2016.

Recommended Substitutions: A1338 Family. For existing customer transition, and for new customers or new applications, contact Allegro Sales.

The A1334 is a 360° angle sensor IC that provides contactless high-resolution angular position information based on magnetic Circular Vertical Hall (CVH) technology. It has a system-on-chip (SoC) architecture that includes: a CVH front end, digital signal processing, and a digital (SPI) output. The A1334 is ideal for automotive applications requiring high-speed 0° to 360° angle measurements, such as electronic power steering (EPS) and throttle systems.

The A1334 supports a Low RPM mode for slower rate applications and a High RPM mode for high-speed applications. High RPM mode is for applications that require higher refresh rates to minimize error due to latency. Low RPM mode is for applications that require higher resolution operating at lower angular velocities.

As part of its signal processing functions, the A1334 includes automotive-grade temperature compensation to provide accurate output over the full operating temperature and voltage ranges. The A1334 also includes EEPROM technology for end-of-line calibration.

The A1334 is available as a single die in a 14-pin TSSOP, or dual die in a 24-pin TSSOP. Both packages are lead (Pb) free with 100% matte-tin leadframe plating.

ASIL LogoAllegro's A1334 is a Quality Managed (QM) product that has been developed according to the automotive quality requirements of TS 16949 and contains features targeted for automotive safety applications. This product can be qualified for use in accordance with ISO 26262 in compliant safety systems by ensuring a robust integration of the component into the system design. Safety documentation will be provided to support and guide the integration process.

DATASHEETS
SAMPLE & BUY

Astrorep Inc. (Allegro and Sanken Semiconductors, Sanken Power Supplies)
141 John Street, Suite 300
Babylon, NY 11702
Phone: (631)422-2500
Fax: (631)422-2504
Web: www.astrorepinc.com
Email: donna.tweedy@astrorepinc.com

If this is not your local representative, find your local sales rep here.

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  • Features and BenefitsFeatures and Benefits
  • PackagingPackaging
  • Technical DocsTechnical Docs
  • NewsNews
  • Contactless 0° to 360° angle sensor IC, for angular position, rotational speed, and direction measurement
  • Available with either a single die or dual independent die housed within a single package
  • Circular Vertical Hall (CVH) technology provides a single-channel sensor system, with air-gap independence
  • 12-bit resolution possible in low RPM mode, 10-bit resolution in high RPM mode
  • Angle Refresh Rate (output rate) configurable between 25 and 3200 µs through EEPROM programming
  • Capable of sensing magnet rotational speeds in excess of 7600 rpm
  • SPI interface allows use of multiple independent sensors for applications requiring redundancy
  • EEPROM programmable angle reference (0°) position and rotation direction (CW or CCW)
  • Absolute maximum VCC of 26.5 V for automotive battery-powered applications
Packages

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Product Image Typical Application Functional Block Diagram EPS Application A1332/34 Product Image

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Compliant
Part Composition /
RoHS Data
Comments Samples Check
Distributor Stock
A1334LLELU-30-T n/a -20°C to 85°C Yes View Data Not for new design Contact your
local sales rep
Check Stock
ASEK-1334-KIT-T n/a -20°C to 85°C -- View Data Not for new design Contact your
local sales rep
Check Stock
ASEK-1334-SUBKIT-T n/a -20°C to 85°C -- View Data Not for new design Contact your
local sales rep
Check Stock
A1334LLETR-30-T 14-lead TSSOP -40°C to 150°C Yes View Data Not for new design Contact your
local sales rep
Check Stock
A1334LLETR-60-T 14-lead TSSOP -40°C to 150°C Yes View Data Not for new design Contact your
local sales rep
Check Stock
A1334LLETR-DD-T 24-lead TSSOP -40°C to 150°C Yes View Data Not for new design Contact your
local sales rep
Check Stock
A1334LLETR-DD55-T 24-lead TSSOP -40°C to 150°C Yes View Data Not for new design Contact your
local sales rep
Check Stock
A1334LLETR-T 14-lead TSSOP -40°C to 150°C Yes View Data Not for new design Contact your
local sales rep
Check Stock

Allegro’s products are not to be used in any devices or systems, including but not limited to life support devices or systems, in which a failure of Allegro’s product can reasonably be expected to cause bodily harm.

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