Done in One: Infineon’s Dual-Sensor

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Some applications—like sensing the steering torque in an electric power steering system—typically require two sensor chips that are placed side-by-side. Infineon Technologies (infineon.com) has come up with two device families of linear Hall sensors and angle sensors that effectively combine two into a single package.

They’re using a stack-mounting technology so that there are two independent sensors on a standard PG-TDSO package. The dimensions of a PG-TDSO-8 package for linear Hall sensors are identical to those for a single-sensor unit: 4.0 x 5.0 x 1.2 mm (height inclusive standoff).

Each sensor on the new chip has its own power supply and provides separate signal outputs. Consequently, each sensor works independently.

“With two sensors on one small package, our customers can reduce their system costs and design very compact ASIL D systems,” said Ralf Bornefeld, vice president and general manager, Sense and Control business, Infineon.