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BQ25898C Datasheet(PDF) 1 Page - Texas Instruments

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Part # BQ25898C
Description  Controlled Single Cell 3-A Charger
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

BQ25898C Datasheet(HTML) 1 Page - Texas Instruments

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VBUS
SW
BTST
SYS
BAT
bq25898C
Host
INPUT
3.9V±14V
USB
ICHG
BATSEN
I2C BUS
Host Control
Copyright © 2016, Texas Instruments Incorporated
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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.
bq25898C
SLUSCJ7B – MARCH 2016 – REVISED APRIL 2016
bq25898C I2C Controlled Single Cell 3-A Charger for High Input Voltage in Compact
DSBGA Package
1
1 Features
1
Operation as Slave Charger to Provide Fast
Charging in Dual Charger Operation
Simple Configuration with Minimum BOM
High Efficiency 3-A, 1.5-MHz Switch Mode Buck
Charge
92% Charge Efficiency at 3 A and 94% Charge
Efficiency at 2 A Charge Current
Optimize for High Voltage Input (9 V / 12 V)
Low Power PFM mode for Light Load
Operations
Single Input to Support USB Input and Adjustable
High Voltage Adapters
Support 3.9-V to 14-V Input Voltage Range
Input Current Limit (100 mA to 3.25 A with 50-
mA resolution) to Support USB2.0, USB3.0
standard and High Voltage Adapters
Wide Input Dynamic Power Management
(DPM) Range
Highest Battery Discharge Efficiency with 5-m
Ω
Default Charge Disabled
Integrated ADC for System Monitor
(Voltage, Charge Current)
Flexible Autonomous and I2C Mode for Optimal
System Performance
Remote Battery Sensing
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
Thermal Regulation and Thermal Shutdown
Input UVLO/Overvoltage Protection
Battery OVP
Safety Timer
2 Applications
Smart Phone
Tablet PC
Portable Internet Devices
3 Description
The bq25898C is a highly-integrated switch-mode
battery charge management and system power path
management device for single cell Li-Ion and Li-
polymer battery. The device supports high input
voltage for charging. The low impedance power path
optimizes switch-mode operation efficiency, reduces
battery charging time and extends battery life during
discharging phase. The I2C serial interface with
charging and system settings makes the device a
truly flexible solution. The bq25898C is available in a
2.8mm x 2.5mm 42-ball DSBGA package.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
bq25898C
DSBGA (42)
2.80 mm x 2.50 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic


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