Single cell 5-A charger Maxcharge™ tech for high input voltage and 3.1-A boost with HVDCP enabled
Product details
Parameters
Package | Pins | Size
Features
- High Efficiency 5-A, 1.5-MHz Switch Mode Buck Charge
- 93% Charge Efficiency at 2 A and 91% Charge Efficiency at 3 A Charge Current
- Optimize for High Voltage Input (9 V to 12 V)
- Low Power PFM mode for Light Load Operations
- Boost Mode Operation with Adjustable Output from 4.5 V to 5.5 V
- Selectable 500-KHz to 1.5-MHz Boost Converter with up to 3.1-A Output
- 93% Boost Efficiency at 5 V at 1 A Output
- Integrated Control to Switch Between Charge and Boost Mode
- 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
- Maximum Power Tracking by Input Voltage Limit up-to 14V for Wide Range of Adapters
- Auto Detect USB SDP, CDP, DCP, and Non-standard Adapters
- Input Current Optimizer (ICO) to Maximize Input Power without Overloading Adapters
- Resistance Compensation (IRCOMP) from Charger Output to Cell Terminal
- Highest Battery Discharge Efficiency with 11-mΩ Battery Discharge MOSFET up to 9 A
- 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 Ship Mode
- High Accuracy
- ±0.5% Charge Voltage Regulation
- ±5% Charge Current Regulation
- ±7.5% Input Current Regulation
- Safety
- Battery Temperature Sensing for Charge and Boost Mode
- Thermal Regulation and Thermal Shutdown
- Create a Custom Design Using the bq25895 With the WEBENCH® Power Designer
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Description
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 I2C Serial interface with charging and system settings makes the device a truly flexible solution.
The device supports a wide range of input sources, including standard USB host port, USB charging port, and USB compliant adjustable high voltage adapter. To support fast charging using adjustable high voltage adapter, the bq25895 provides support MaxChargeTM using D+/D– pins and DSEL pin for USB switch control. In addition, the device includes interface to support adjustable high voltage adapter using input current pulse protocol. To set the default input current limit, device uses the built-in USB interface. The device is compliant with USB 2.0 and USB 3.0 power spec with input current and voltage regulation. In addition, the Input Current Optimizer (ICO) supports the detection of maximum power point detection of the input source without overload. The device supports battery boost operation by supplying adjustable 4.5 V to 5.5 V on PMID pin with up to 3.1 A with integrated charge and boost mode detection
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The bq25895 evaluation module (EVM) is a complete charger module for evaluating the highly-integrated switch-mode battery charge management and system power path management device for 1 cell Li-Ion and Li-polymer battery in a wide range of smartphone and tablet applications.
The BQ25895EVM-664 (...)
Features
- Input voltage range: 3.9V to 14V;
- I2C communication;
- LED indication for status signals
- Test points for key signals available for testing purposes;
- Jumpers for different circuit configuration.
Software development
Features
- Real-time Gauge Dashboard for monitoring basic registers
- Full register access and logging
- Full data memory access and logging
- Product configuration and monitoring tools
- Import and export of product configurations
- Calibration and test automation
- Export of FS files for the target production environment
Linux Mainline Status
Available in Linux Main line: Yes
Available through git.ti.com: N/A
Supported Devices:
- bq25890
Linux Source Files
The (...)
Design tools & simulation
Reference designs
Design files
Design files
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download TIDA-01182 BOM.pdf (80KB) -
download TIDA-01182 Assembly Drawing.pdf (500KB) -
download TIDA-01182 PCB.pdf (2934KB) -
download TIDA-01182 Altium.zip (1721KB) -
download TIDA-01182 Gerber.zip (2834KB)
Design files
-
download PMP4451 BOM.pdf (85KB) -
download PMP4451 Layer Plots.zip (711KB)
Design files
-
download PMP4496 BOM.pdf (81KB) -
download PMP4496 Layer Plots .zip (505KB)
Design files
-
download PMP11536 BOM.pdf (84KB) -
download PMP11536 Layer Plots.zip (706KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
WQFN (RTW) | 24 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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