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TDK-Micronas HAC® 3930 and HAR® 3930 Stray-Field Robust 3D Position Sensors feature PWM or SENT output and measure 360° angular range, linear movements, and the 3D position information of a magnet. Based on Hall technology, these modules measure vertical and horizontal magnetic-field components and suppress external magnetic stray fields using an array of Hall plates. The HAC 3930 and HAR 3930 devices address the need for stray-field robust 3D position sensing (linear and angular) and ISO 26262-compliant development. Both products are defined as SEooC ASIL B ready according to ISO 26262, and the HAR 3930 can be integrated into automotive safety-related systems up to ASIL D.
The TDK-Micronas HAC 3930 sensor features integrated capacitors, meeting electrostatic discharge (ESD) and electromagnetic compatibility (EMC) requirements while eliminating the need for a PCB, reducing total system size and cost. The HAC 3930 comes in a small three-pin leaded transistor TO92UF package.
The HAR 3930 provides full redundancy thanks to two independent dies stacked in a single package, each electrically connected to the pins of one package side. This stacked-die architecture makes sure both dies occupy the same magnetic-field position to generate synchronous measurement signals. The HAR 3930 also offers two switch outputs (configurable high-/low-side switch). The HAR 3930 is offered in a 16-pin SSOP16 SMD package.
