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# Overview Source: [https://docs.qualcomm.com/doc/80-19731-10/topic/overview.html](https://docs.qualcomm.com/doc/80-19731-10/topic/overview.html) ## Device description Source: [https://docs.qualcomm.com/doc/80-19731-10/topic/overview.html](https://docs.qualcomm.com/doc/80-19731-10/topic/overview.html) The PM7325B interface PMIC, supplements the master core PMICs to integrate all wireless handset power management, general housekeeping, and user interface support functions. - Best in class high-efficiency 4 A 2-level buck Li-ion battery charger - Dedicated path for USB charging with charger operation up to 13.2 V (16 V absolute max) - Supports up to 4 A charge current (single path) and 10 A charge current (dual path using SMB1393) - Supports USB Type-C specification Rev. 1.4 and USB power delivery specification Rev. 3.0 - Supports Qualcomm® Quick Charge™ 2.0, Quick Charge 3.0, and Quick Charge 4.0 Technology - Supports complete LCD display power solution including WLED backlight driver and LCD bias power For the complete features and system specifications, see [*PM7325B Data Sheet* (80-19731-1)](https://docs.qualcomm.com/bundle/80-19731-1/resource/80-19731-1_REV_AD_PM7325B_Data_Sheet.pdf). ## Key features Source: [https://docs.qualcomm.com/doc/80-19731-10/topic/overview.html](https://docs.qualcomm.com/doc/80-19731-10/topic/overview.html) - Qualcomm battery gauge with improved System-on-Chip (SoC) accuracy - Analog-to-digital converter (ADC) subsystem with analog multiplexer (AMUX) and voltage/current analog-to-digital converter (VADC/IADC) - Battery interface module (BIM) that includes battery serial interface (BSI) or PMIC serial interface (PSI) and battery missing detection (BMD) - Battery current limiting (BCL) subsystem that provides both hardware and software alarms, which are used by the system for reducing battery current - Positive and negative LCD bias rails rated for up to 200 mA of output current per rail to support 144 Hz LCD display panels - White LED (WLED) backlight driver - Customizable, LUT based exponential dimming with programmable hardware ramp between brightness changes - Supports ERM vibration motor by a dedicated LDO driver - System power management interface (SPMI) interface - Eight GPIOs ### Package - 108-pin fan-out wafer-level nanoscale package (108 WLNSP) - Package size: 4.8 mm × 3.6 mm × 0.57 mm with 0.40 mm pitch ## High-level block diagram and package outline Last Published: Feb 12, 2025