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BQ25895 Series

I2C 1cell 5A buck battery charger with high input voltage and 3.1-A boost with HVDCP enabled

Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/

Catalog

I2C 1cell 5A buck battery charger with high input voltage and 3.1-A boost with HVDCP enabled

PartMounting TypeCharge Current - Max [Max]InterfacePackage / CaseBattery ChemistrySupplier Device PackageVoltage - Supply (Max) [Max]Number of CellsOperating Temperature [Max]Operating Temperature [Min]Fault ProtectionSupplied ContentsSecondary AttributesUtilized IC / PartFunctionTypeContents
Texas Instruments
BQ25895RTWR
Surface Mount
5 A
I2C, USB
24-WFQFN Exposed Pad
Lithium Ion/Polymer
24-WQFN (4x4)
14 V
1
85 °C
-40 °C
Over Temperature
Texas Instruments
BQ25895EVM-664
Board(s)
On-Board LEDs
BQ25895
Battery Charger
Power Management
Texas Instruments
BQ25895MRTWT
Surface Mount
5 A
I2C, USB
24-WFQFN Exposed Pad
Lithium Ion/Polymer
24-WQFN (4x4)
14 V
1
85 °C
-40 °C
Over Temperature
Texas Instruments
BQ25895MRTWR
Surface Mount
5 A
I2C, USB
24-WFQFN Exposed Pad
Lithium Ion/Polymer
24-WQFN (4x4)
14 V
1
85 °C
-40 °C
Over Temperature
Texas Instruments
BQ25895MEVM-664
Board(s)
BQ25895M
Battery Charger
Power Management
Board(s)
Texas Instruments
BQ25895RTWT
Surface Mount
5 A
I2C, USB
24-WFQFN Exposed Pad
Lithium Ion/Polymer
24-WQFN (4x4)
14 V
1
85 °C
-40 °C
Over Temperature

Key Features

High efficiency 5-A, 1.5-MHz switch mode buck charge93% Charge efficiency at 2 A and 91% charge efficiency at 3 A charge currentOptimize for high voltage input (9 V to 12 V)Low Power PFM Mode for light load operationsBoost Mode operation with adjustable output from 4.5 V to 5.5 VSelectable 500-KHz to 1.5-MHz boost converter with up to 3.1-A output93% Boost efficiency at 5 V at 1 A outputIntegrated control to switch between charge and Boost ModeSingle input to support USB input and adjustable high voltage adaptersSupport 3.9-V to 14-V input voltage rangeInput current limit (100 mA to 3.25 A with 50-mA resolution) to support USB2.0, USB3.0 standard and high voltage adaptersMaximum power tracking by input voltage limit up-to 14V for wide range of adaptersAuto detect USB SDP, CDP, DCP, and Non-standard AdaptersInput current optimizer (ICO) to maximize input power without overloading adaptersResistance compensation (IRCOMP) from charger output to cell terminalHighest battery discharge efficiency with 11-mΩ battery discharge MOSFET up to 9 AIntegrated ADC for system monitor (voltage, temperature, charge current)Narrow VDC (NVDC) power path managementInstant-on works with no battery or deeply discharged batteryIdeal diode operation in Battery Supplement ModeBATFET Control to support Ship Mode, wake up, and full system resetFlexible autonomous and I2C Mode for optimal system performanceHigh integration includes all MOSFETs, current sensing and loop compensation12-µA Low battery leakage current to support Ship ModeHigh accuracy±0.5% Charge voltage regulation±5% Charge current regulation±7.5% Input current regulationSafetyBattery temperature sensing for charge and Boost ModeThermal regulation and thermal shutdownHigh efficiency 5-A, 1.5-MHz switch mode buck charge93% Charge efficiency at 2 A and 91% charge efficiency at 3 A charge currentOptimize for high voltage input (9 V to 12 V)Low Power PFM Mode for light load operationsBoost Mode operation with adjustable output from 4.5 V to 5.5 VSelectable 500-KHz to 1.5-MHz boost converter with up to 3.1-A output93% Boost efficiency at 5 V at 1 A outputIntegrated control to switch between charge and Boost ModeSingle input to support USB input and adjustable high voltage adaptersSupport 3.9-V to 14-V input voltage rangeInput current limit (100 mA to 3.25 A with 50-mA resolution) to support USB2.0, USB3.0 standard and high voltage adaptersMaximum power tracking by input voltage limit up-to 14V for wide range of adaptersAuto detect USB SDP, CDP, DCP, and Non-standard AdaptersInput current optimizer (ICO) to maximize input power without overloading adaptersResistance compensation (IRCOMP) from charger output to cell terminalHighest battery discharge efficiency with 11-mΩ battery discharge MOSFET up to 9 AIntegrated ADC for system monitor (voltage, temperature, charge current)Narrow VDC (NVDC) power path managementInstant-on works with no battery or deeply discharged batteryIdeal diode operation in Battery Supplement ModeBATFET Control to support Ship Mode, wake up, and full system resetFlexible autonomous and I2C Mode for optimal system performanceHigh integration includes all MOSFETs, current sensing and loop compensation12-µA Low battery leakage current to support Ship ModeHigh accuracy±0.5% Charge voltage regulation±5% Charge current regulation±7.5% Input current regulationSafetyBattery temperature sensing for charge and Boost ModeThermal regulation and thermal shutdown

Description

AI
The BQ25895 is a highly-integrated 5-A switch-mode battery charge management and system power path management device for single cell Li-Ion and Li-polymer battery. The devices support high input voltage fast charging. The low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during discharging phase. The BQ25895 is a highly-integrated 5-A switch-mode battery charge management and system power path management device for single cell Li-Ion and Li-polymer battery. The devices support high input voltage fast charging. The low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during discharging phase.