EmbeddedRelated.com
The 2026 Embedded Online Conference
    Parts    A1335LLETR-T
A1335LLETR-T

A1335LLETR-T

Allegro MicroSystems
Integrated magnetic angle sensor optimized for robust 360 degree position sensing and motor control applications.
Active20,414 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The Allegro A1335LLETR-T is an integrated 360-degree magnetic angle sensor utilizing Circular Vertical Hall (CVH) technology. Optimized for robust position sensing, it features selectable digital output formats including SPI, I2C, and SENT. This sensor is designed for high-resolution angle measurement in demanding applications, offering a refresh rate of 32 microseconds with 12-bit resolution.

Why Choose This Part

This sensor offers robust performance in harsh environments with an automotive temperature range of -40 degrees C to 150 degrees C and AEC-Q100 qualification. Its multiple digital output options (SPI, I2C, SENT) provide flexibility for integration into various system architectures. The inclusion of linearization algorithms and EEPROM with ECC enhances measurement accuracy and reliability.

Applications

Electronic Power Steering (EPS)
Precise angle sensing for electric power steering systems, providing critical input for steering control and feedback.
Brushless DC (BLDC) Motor Control
Accurate rotor position feedback for efficient commutation and control of BLDC motors in various automotive and industrial systems.
Transmission Actuators
Position sensing in automatic transmission systems to control gear engagement and clutch operation.
Brake-by-Wire Systems
Reliable angle measurement for pedal position and other critical components in advanced braking systems.
Industrial Robotics
Joint angle measurement in robotic arms and manipulators, enabling precise movement and positioning.
Off-Axis Sensing Applications
Its ability to enable off-axis operation makes it suitable for applications where the magnet cannot be perfectly centered.

Key Specifications

Output I2C, SENT, SPI
Technology Hall Effect
Actuator Type External Magnet, Not Included
For Measuring Angle
Mounting Type Surface Mount
Package / Case 14-TSSOP (0.173", 4.40mm Width)
Voltage - Supply 4.5V ~ 5.5V
Termination Style Gull Wing
Operating Temperature -40degC ~ 150degC
Supplier Device Package 14-TSSOP
Rotation Angle - Electrical, Mechanical 0deg ~ 360deg

Getting Started

To get started with the A1335LLETR-T, engineers should refer to Allegro's application notes for guidance on magnet selection and placement. The sensor can be configured via Manchester encoding on the VCC line. Development kits or evaluation boards, often available from Allegro, would provide a quick way to interface with the SPI, I2C, or SENT outputs and develop control software.

The 2026 Embedded Online Conference