This part is a kind of semiconductor called BD5217-2C.

Function of this product has Free Time Delay Setting CMOS Voltage Detector (Reset) IC.

Manufacturers : Rohm

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Datasheet Voltage Detector (Reset) IC Series for Automotive Application Free Time Delay Setting CMOS Voltage Detector (Reset) IC BD52xx-2C Series and BD53xx-2C Series General Description ROHM's BD52xx-2C and BD53xx-2C series are highly accurate, low current consumption Voltage Detector ICs with a capacitor controlled time delay. The lineup includes N-channel open drain output (BD52xx-2C) and CMOS output (BD53xx-2C) so that the users can select depending on the application. The devices are available for specific detection voltage ranging from 0.9V to 5.0V with 0.1V increment. The time delay has ±50% accuracy in the overall operating temperature range of -40°C to 125°C. Special Features  AEC-Q100 Qualified (Note1)  Delay Time Setting controlled by external capacitor  Two output [ ... ]

BD5217-2C PDF Datasheet Download