ALLEGRO A19420LUBBTN-E

The A19420 is an optimized Hall effect IC for measuring the speed of rotating targets. The sensor IC can directly measure ring magnets or measure ferrous targets via magnet back-biasing. The package features an integrated capacitor for EMC. The A19420's SolidSpeed digital architecture provides intelligent algorithms for stable operation during sudden and dynamic air gap movements. A precision digital controller delivers high-accuracy speed detection, making it ideal for transmission applications. Additionally, the A19420's differential sensing inherently suppresses interfering common-mode magnetic fields. The A19420 is developed in accordance with ISO 26262:2011 as a hardware safety element with ASIL B capability, suitable for use in automotive safety-related systems when integrated and used as specified in the applicable safety manual and datasheet. The A19420 is offered in a 2-pin SIP package (suffix UB), lead-free (Pb), with tin-plated lead frame. The UB package integrates an IC and a capacitor into a single overmolded package with an additional molded lead stabilizer bar for ease of handling and assembly.

• Differential Hall-effect sensor for ring magnets and ferrous targets with inherent stray-field immunity
• SolidSpeed digital architecture with advanced algorithms maintaining pitch and duty cycle accuracy during dynamic air gap disturbances
• Integrated solution with single capacitor in a single overmolded package
• ISO 26262:2011 ASIL B compliant with integrated diagnostics and certified safety design process
• Two-wire current-source output protocol supporting speed and ASIL error reporting
• EEPROM enabling product lifecycle traceability
• 2-pin SIP package (suffix UB)

• Automotive powertrain systems