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BQ25700ARSNR Datasheet(PDF) 1 Page - Texas Instruments |
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BQ25700ARSNR Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 82 page  bq25700A ACN VBUS HIDRV1 SRN VSYS BATT (1S-4S) BTST1BTST2 LODRV1 SW1 SW2 LODRV2 HIDRV2 SRP BATDRV ACP SYS Host Q1 Q2 Q3 Q4 Adapter 3.5V ± 24V Copyright © 2017, Texas Instruments Incorporated Product Folder Order Now Technical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. bq25700A SLUSCQ8 – MAY 2017 bq25700A SMBus Multi-Chemistry Battery Buck-Boost Charge Controller With System Power Monitor and Processor Hot Monitor 1 1 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 – Comprehensive PROCHOT Profile, IMVP8 Compliant – Input and Battery Current Monitor – System Power Monitor, IMVP8 Compliant • 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 • Power Up USB Port From Battery (USB OTG) – Output 4.48-V to 20.8-V Compatible With USB PD – Output Current Limit up to 6.35 A • 800-kHz or 1.2-MHz Programmable Switching Frequency for 1-µH to 2.2-µH Low Profile Inductor • Host Control Interface for Flexible System Configuration – SMBus (bq25700A) Port for Optimal System Performance and Status Reporting – Hardware Pin to Set Input Current Limit Without EC Control • 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+, LiFePO4, NiCd, NiMH, 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 bq25700A is a synchronous NVDC battery buck- boost charge controller, offering low component 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 operating even when the battery is completely discharged or removed. When load power exceeds input source rating, the battery goes into supplement mode and prevents the input source from being overloaded. The bq25700A charges battery from a wide range of input sources including USB adapter, high voltage USB PD sources and traditional adapters. Device Information (1) PART NUMBER PACKAGE BODY SIZE (NOM) bq25700A WQFN (32) 4.00 mm × 4.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Application Diagram |
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