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BQ25896 Datasheet(PDF) 1 Page - Texas Instruments |
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BQ25896 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 11 page SYS BAT bq25896 Host Input 3.9V±14V at 3A USB OTG 5V at 2A Ichg = 3A SYS 3.5V±4.5V I2C Bus Host Control VBUS SW TS QON Optional REGN Product Folder Sample & Buy Technical Documents Tools & Software Support & Community bq25896 SLUSC76A – JULY 2015 – REVISED SEPTEMBER 2015 bq25896 I2C Controlled Single Cell 3-A Fast Charger with MaxChargeTM Technology for High Input Voltage and Adjustable Voltage USB On-the-Go Boost Mode 1 Features Ship Mode • High Accuracy 1 • High Efficiency 3-A, 1.5-MHz Switch Mode Buck Charge – ±0.5% Charge Voltage Regulation – 92.5% Charge Efficiency at 2 A and 90.5% – ±5% Charge Current Regulation Charge Efficiency at 3 A Charge Current – ±7.5% Input Current Regulation – Optimize for High Voltage Input (9 V / 12 V) • Safety – Low Power PFM mode for Light Load – Battery Temperature Sensing for Charge and Operations Boost Mode • USB On-the-Go (OTG) with Adjustable Output – Thermal Regulation and Thermal Shutdown from 4.5 V to 5.5 V – Selectable 500-KHz / 1.5-MHz Boost 2 Applications Converter with up-to 2 A Output • Smart Phone – 93% Boost Efficiency at 5 V at 1 A Output • Tablet PC – Accurate Hiccup Mode Overcurent Protection • Portable Internet Devices – Support down-to 2.5V Battery 3 Description – Support PWM only or PFM/PWM control for Light Load Efficiency The bq25896 is a highly-integrated 3-A switch-mode battery charge management and system power path • Single Input to Support USB Input and Adjustable management device for single cell Li-Ion and Li- High Voltage Adapters polymer battery. The devices support high input – Support 3.9-V to 14-V Input Voltage Range voltage fast charging. The low impedance power path – Input Current Limit (100 mA to 3.25 A with 50- optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during mA resolution) to Support USB2.0, USB3.0 discharging phase. The I2C Serial interface with standard and High Voltage Adapters charging and system settings makes the device a – Maximum Power Tracking by Input Voltage truly flexible solution. Limit up-to 14V for Wide Range of Adapters • Input Current Optimizer (ICO) to Maximize Input Device Information(1) Power without Overloading Adapters PART NUMBER PACKAGE BODY SIZE (NOM) • Resistance Compensation (IRCOMP) from bq25896 WQFN (24) 4.00mm x 4.00mm Charger Output to Cell Terminal (1) For all available packages, see the orderable addendum at • Highest Battery Discharge Efficiency with 11-m Ω the end of the datasheet. Battery Discharge MOSFET up to 9 A Simplified Schematic • Integrated ADC for System Monitor (Voltage, Temperature, Charge Current) • Narrow VDC (NVDC) Power Path Management – Instant-on Works with No Battery or Deeply Discharged Battery – Ideal Diode Operation in Battery Supplement Mode • BATFET Control to Support Ship Mode, Wake Up, and Full System Reset • Flexible Autonomous and I2C Mode for Optimal System Performance • High Integration includes all MOSFETs, Current Sensing and Loop Compensation • 12-µA Low Battery Leakage Current to Support 1 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. |
Similar Part No. - BQ25896_15 |
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Similar Description - BQ25896_15 |
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