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BQ25882 Datasheet(PDF) 1 Page - Texas Instruments |
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BQ25882 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 86 page  VBUS BAT SYSTEM LOAD PMID SW BTST REGN SYS ` BQ25883 USB STAT 6.0V to 8.8V TS 5V @ 3A ICHG=2A D+ ILIM GND D± Host SDA CE SCL VREF INT PG VREF VREGN 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. BQ25883 SLUSDL3A – FEBRUARY 2019 – REVISED APRIL 2019 BQ25883 2-Cell, 2-A Boost-Mode Battery Charger With Power Path, USB On-The-Go Boost (OTG) For USB Input 1 1 Features 1 • High-efficiency 2-A, 1.5MHz switch mode boost charger – 93.4% Charge efficiency at 5V adapter, 7.6-V battery, 1-A charge – Optimized for USB input and 2-cell Li-Ion battery – Selectable low power PFM mode for light load operation • Single input to support USB input adapters – Supports 3.9 V – 6.2 V input voltage range with 20-V absolute maximum input voltage rating – Input current limit (500 mA to 3.3 A with 100- mA resolution) to support USB2.0, USB3.0 standard adapters – Maximum power tracking by input voltage limit up-to 5.5 V – Integrated USB D+/D- auto-detect USB SDP, CDP, DCP, and non-standard adapters • Power path management and I2C control – Highest battery discharge efficiency with 17m Ω battery discharge MOSFET – Narrow VDC (NVDC) power path management – Instant-on system on with no battery or deeply discharged battery – Ideal diode operation in battery supplement mode • USB on-the-go (OTG) with adjustable output from 4.5V to 5.5V – Buck converter with up-to 2 A output – 94% Efficiency at 5 V, 1 A output – Accurate constant current (CC) regulation and output short protection – Selectable low power PFM mode for light load operation with out-of-audio option • Input current optimizer (ICO) to maximize input power without overloading adapters • Integrated 16-bit ADC for system monitoring (BUS voltage and current, each cell voltage, charge current, SYS voltage, and NTC and die temperature) • High integration includes all MOSFETs, current sensing and loop compensation • High accuracy – ±0.5% Charge voltage regulation – ±5% Charge current regulation – ±7.5% Input current regulation • Safety – Battery temperature sensing in charge and OTG buck mode – Thermal regulation and thermal shutdown 2 Applications • Bluetooth speaker • EPOS Printer • Portable POS • Wireless security camera 3 Description The BQ25883 is a highly-integrated 2-A boost switch- mode battery charge management and system power path management device for 2-cell (2s) Li-Ion and Li- polymer battery. The BQ25883 has I2C control with OTG and power path. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) BQ25883 VQFN (24) 4.00 mm x 4.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Simplified Schematic |
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