BQ25708 Datasheet | Texas Instruments

Features - 1 Charge 1- to 4-Cell Battery From Wide Range of Input Sources - 3.5-V to 24-V Input Operating Voltage - Supports USB2.0, USB 3.0, USB 3.1 (Type C), and USB_PD Input Current Settings - Seamless Transition Between Buck and Boost Operation - Input current and Voltage Regulation (IDPM and VDPM) Against Source Overload - Power/Current Monitor for CPU Throttling - prehensive PROCHOT Profile, IMVP8 pliant - Input and Battery Current Monitor - System Power Monitor, IMVP8 pliant - Narrow-VDC (NVDC) Power Path Management - Instant-On With No Battery or Deeply Discharged Battery - Battery Supplements System When Adapter is Fully-Loaded - Ideal Diode Operation in Supplement Mode - 800-k Hz or 1.2-MHz Programmable Switching Frequency for 1-µH to 3.3-µH Inductor - Host Control Interface for Flexible System Configuration - SMBus Port for Optimal System Performance and Status Reporting - Hardware Pin to Set Input Current Limit Without EC Control - Integrated ADC to Monitor Voltage, Current and Power - High Accuracy Regulation and Monitor - ±0.5% Charge Voltage Regulation - ±2% Input/Charge Current Regulation - ±2% Input/Charge Current Monitor - ±5% Power Monitor - Safety - Thermal Shutdown - Input, System, Battery Overvoltage Protection - MOSFET Inductor Overcurrent Protection - Low Battery Quiescent Current - Input Current Optimizer (ICO) to Extract Max Input Power - Charge any Battery Chemistry: Li+, Li Fe PO4, Ni Cd, Ni MH, Lead Acid - Package: 32-Pin 4 × 4 WQFN 2 Applications - Ultra-Books, Notebooks, Detachable, and Tablet PCs and Power Bank - Industrial and Medical Equipment - Portable Equipment With Rechargeable Batteries 3 Description The bq25708 is a synchronous NVDC battery buckboost charge controller, offering low ponent count, high efficiency solution for space-constraint, multi-chemistry battery charging applications. The NVDC-1 configuration allows the system to be regulated at battery voltage, but not drop below system minimum voltage. The system keeps...