Semiment SC69401DC-TR-Q

SC69401 is an angular position sensor IC based on differential Hall magnetic sensing. Its center integrates a fully differential Hall sensing matrix capable of detecting a pair of S/N pole magnets positioned above it, generating corresponding sine/cosine position signals. These signals are amplified by a front-end amplifier, sampled by an internal ADC circuit, and processed by a dedicated DSP circuit for angle computation. The resulting position information (0–360°) of magnet rotation is output via multiple interface options. The IC supports multiple output modes: analog output proportional to the rotation angle, PWM output, and 4-wire SPI bus. The output curve can be programmed to select any 4-point, 8-point, or range-selectable 16-segment and 32-segment equal-division curves. The IC was developed in compliance with the ISO 26262 standard and meets ASIL-B level. It is suitable for non-contact, on-axis mounting position detection.

• AEC-Q100 Grade 0 certified
• ISO 26262 ASIL B certified
• High-precision rotational angle position sensing
• Simple magnetic circuit design
• Wide operating temperature range: -40°C to 160°C
• Selectable output modes: Analog, PWM, SPI
• Programmable angular measurement range (up to 360°)
• Programmable linear transfer characteristics (arbitrary 4-point, 8-point, or selectable 16-segment / 32-segment equal-division curves)
• 32-bit programmable user ID
• Differential Hall sensing for stray magnetic field rejection
• Comprehensive on-chip diagnostic functions
• Overcurrent and overvoltage protection; undervoltage protection
• Package options: SOP8, eTSSOP-16L

• Non-contact angular position sensing
• Accelerator pedal sensor
• Steering wheel angle sensor
• Gear shift position detection
• Throttle and EGR valve angular position detection