Products Overview
A1333 Hall-Effect Angle Sensor IC
Allegro MicroSystems
A1333: Precision, High Speed, Hall-Effect Angle Sensor IC with Integrated Diagnostics for Safety-Critical Applications
The A1333 is a 360° angle sensor IC that provides contactless, low latency, high-resolution angular position information based on magnetic Circular Vertical Hall (CVH) technology. It has a system-onchip (SoC) architecture that includes: a CVH front end, digital signal processing, and motor commutation (UVW) or encoder outputs (A, B, I). It also includes on-chip EEPROM technology, capable of supporting up to 100 read/write cycles, for flexible end-of-line programming of calibration parameters.
The A1333 is ideal for automotive applications requiring 0° to 360° angle measurements, such as electronic power steering (EPS), rotary PRNDLs, and throttle systems.
The A1333 supports customer integration into safety-critical applications.
The A1333 is available in a dual-die 24-pin eTSSOP and a single-die 14-pin TSSOP package. The packages are lead (Pb) free with 100% matte-tin leadframe plating.
A1333 was developed in accordance with ISO 26262:2011 as a hardware safety element out of context. The single die was designed to meet ASIL B capability (pending assessment), and the dual die was designed to meet ASIL D capability (pending assessment), for use in automotive safety-related systems when integrated and used in the manner prescribed in the applicable safety manual and datasheet.
| Part Number | Output | Output Signal | Rotation Angle | Mounting Type | Termination Style | Actuator Type | Operating Supply Current | Moisture Sensitive | Operating Temperature | Voltage - Supply | Package Type |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A1333 | PWM, SPI | Programmable | 0° ~ 360°, Continuous | Surface Mount | Gull Wing | External Magnet, Not Included | 17 mA | Yes | -40 °C ~ 150 °C(TA) | 4V ~ 16.5V | 24-pin eTSSOP (Suffix LP) / 14-pin TSSOP (Suffix LE) |
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Datasheet Download on Apr, 2022
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