onsemi Battery Management FAN54151UCX

The FAN54151UCX is a high current charging switch designed for battery management applications, particularly in mobile devices and tablets. It features integrated back-to-back common source N-channel MOSFETs with a combined on-resistance of 17 mΩ, ensuring low power loss during operation. The device provides robust protection mechanisms, including over-voltage input protection up to +20 V, input under-voltage lockout, and over-current protection with selectable limits. Additionally, the FAN54151UCX includes true reverse current blocking and a fully integrated I²C slave interface with a configurable address, allowing for easy integration into existing systems. The device also incorporates a temperature sensor and battery cell voltage monitor for enhanced safety. It is packaged in a compact 20-Bump, 0.5 mm pitch WLCSP, making it suitable for space-constrained applications.