A1338LLETR-DD-T
- refresh_rate_us
- 25
- response_time_us
- 60
- output_type
- SPI, SENT
- supply_voltage_v
- 3.7 to 16
- resolution
- 12 bit
- sensitive_axis
- XY
- temp_range
- -40°C to 150°C
- package
- 24-Pin TSSOP
- aec_q100
- Yes
- sensor_type
- CVH
- market
- Automotive
A1338 提供灵活的角度测量功能，具有 SPI 和 SENT/PWM 输出、集成诊断功能，支持用户编程以优化性能。
Product Details
Product Details
Top Features
- Contactless 0° to 360° angle sensor IC, for angular position and rotation direction measurement
- 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 magnetic rotational speeds up to 7600 rpm, and up to 30,000 rpm with reduced accuracy
- SPI (mode 3), and SENT (Single Edge Nibble Transmission) or PWM (Pulse-Width Modulation)*
- SPI interface provides a robust communication protocol for fast angle readings*
- SENT output supports four modes: SAEJ2716 (JAN2010) and Allegro proprietary options of Triggered SENT (TSENT), Sequential SENT (SSENT), and Addressable SENT (ASENT)*
- Programmable via Manchester Encoding on the VCC line, reducing external wiring*
- SPI and SENT interfaces allows use of multiple independent sensors for applications requiring redundancy*
- Advanced diagnostics to support safety-critical applications, including:
- On-chip, user-controlled logic built-in self-test (LBIST) and signal path diagnostics
- 4-bit CRC on SPI messages
- User-Programmable Missing Magnet Error flag for notifying controller of low magnetic field level
- Diagnostics are initiated over the SPI or SENT interface and can directly test proper operation of the IC in safety-critical applications
- EEPROM with Error Correction Control (ECC) configuration, sensor calibration including end-of line adjustments like programmable angle reference (0°) position and rotation direction (CW or CCW)
- Available in both single-die and dual-die configurations
- Dual-die devices contain two independent die housed within a single package
- Absolute maximum VCC of 26.5 V for increased robustness and direct connection to automotive vehicle battery
- Allegro Sensor Bias LDO
* See Selection Guide for more details.
Part Number Specifications and Availability
View Full Specification Details
A1338LLETR-P-T
- refresh_rate_us
- 25
- response_time_us
- 60
- output_type
- SPI, PWM
- supply_voltage_v
- 3.7 to 16
- resolution
- 12 bit
- sensitive_axis
- XY
- temp_range
- -40°C to 150°C
- package
- 14-Pin TSSOP
- aec_q100
- Yes
- sensor_type
- CVH
- market
- Automotive
A1338LLETR-T
- refresh_rate_us
- 25
- response_time_us
- 60
- output_type
- SPI, SENT
- supply_voltage_v
- 3.7 to 16
- resolution
- 12 bit
- sensitive_axis
- XY
- temp_range
- -40°C to 150°C
- package
- 14-Pin TSSOP
- aec_q100
- Yes
- sensor_type
- CVH
- market
- Automotive
