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The A1338 is a 0° to 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, digital SPI, and SENT or PWM outputs. It also includes on-chip EEPROM technology, capable of supporting up to 100 read/write cycles, for flexible end of line programming of calibration and configuration parameters. The A1338 is ideal for automotive applications requiring 0° to 360° angle measurements, such as electronic power steering (EPS), seatbelt motor position systems, rotary PRNDLs, and throttle systems.
The A1338 was designed with safety-critical application requirements in mind. It includes user-controlled on-chip logic built-in self-test (LBIST) and full signal path diagnostics to enable customers to determine if the IC is operating in a proper manner.
The A1338 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.
The A1338 is available in single-die 14-pin TSSOP and a dual-die 24-pin TSSOP. Both packages are lead (Pb) free with 100% matte-tin leadframe plating.
|Document Type||Document Name|
|Application Note||A1337/A1338 System Timing|
|Application Note||Microcontroller-Based Linearization of Angular Sensor ICs|