Specifications
| Type | Description |
|---|---|
| Part Number | BQ25895 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Package / Case | WQFN-24, 4.00 mm x 4.00 mm nominal body |
| Component Type | Power_IC |
| Charge Current Capability | 5 A, switch-mode buck battery charger |
| Switching Frequency | 1.5 MHz, switch-mode buck charge operation |
| Charge Efficiency at 2 A | 93% |
| Charge Efficiency at 3 A | 91% |
| Optimized Input Voltage Range | 9 V to 12 V, high voltage input fast charging |
| Boost Output Voltage Range | 4.5 V to 5.5 V, Boost Mode operation |
| Boost Output Current | Up to 3.1 A |
| Boost Converter Frequency Range | 500 kHz to 1.5 MHz, selectable Boost Mode switching frequency |
| Boost Efficiency | 93%, 5 V output at 1 A load |
| Input Voltage Range | 3.9 V to 14 V, single input supporting USB and high-voltage adapters |
| Input Current Limit Range | 100 mA to 3.25 A, programmable |
| Input Current Limit Resolution | 50 mA |
| Input Voltage Limit Tracking | Up to 14 V, maximum power tracking by input voltage limit |
| Supported Adapter Detection | USB SDP, CDP, DCP, and non-standard adapters |
| Battery Discharge MOSFET Resistance | 11 mΩ, integrated battery discharge MOSFET |
| Battery Discharge Current Capability | Up to 9 A through integrated BATFET |
| Ship Mode Battery Leakage Current | 12 µA |
| Charge Voltage Regulation Accuracy | ±0.5% |
| Charge Current Regulation Accuracy | ±5% |
| Input Current Regulation Accuracy | ±7.5% |
| Battery Chemistry | Single-cell Li-Ion and Li-polymer |
| System Voltage Range | 3.5 V to 4.5 V, SYS output shown in simplified schematic |
| OTG Output | 5 V at 3.1 A, OTG Boost Mode shown in simplified schematic |
| Host Interface | I2C serial interface for charging and system settings control |
| Input Source Compatibility | USB host port, USB charging port, USB-compliant adjustable high-voltage adapter |
| Fast-Charge Adapter Support | MaxCharge using D+/D− pins and DSEL pin |
| USB Power Compliance | USB 2.0 and USB 3.0 input current and voltage regulation |
| VBUS Input Capacitor Recommendation | 1 µF ceramic capacitor from VBUS to PGND, placed close to IC |
| STAT Pull-Up Resistor Recommendation | 10 kΩ, STAT open-drain charge status output pull-up |
| Fault Indication Blink Rate | 1 Hz, STAT pin blink during any fault condition |
| SCL Pull-Up Resistor Recommendation | 10 kΩ, I2C clock connected to logic rail |
| SDA Pull-Up Resistor Recommendation | 10 kΩ, I2C data connected to logic rail |
| INT Pull-Up Resistor Recommendation | 10 kΩ, open-drain interrupt output connected to logic rail |
| INT Pulse Width | 256 µs, active-low interrupt pulse reporting charger status and fault |
| ILIM Regulation Voltage | 0.8 V, ILIM pin sets maximum input current limit |
| Minimum ILIM-Supported Input Current Limit | 500 mA; input current limit below 500 mA is not supported on ILIM pin |
| Recommended Thermistor | 103AT-2 for TS pin battery temperature qualification |
| BAT Capacitor Recommendation | 10 µF, connect close to BAT pin |
| SYS Capacitor Recommendation | 20 µF, connect close to SYS pin |
| Datasheet Status | request_only |
Product Overview
The BQ25895 is a Texas Instruments single-cell fast charger PMIC for Power_Management designs using single-cell Li-Ion and Li-polymer batteries. It integrates a switch-mode buck battery charger with 5 A charge current capability and 1.5 MHz switching frequency. Charge efficiency is specified as 93% at 2 A charge current and 91% at 3 A charge current.
The device supports a single input for USB and high-voltage adapters across 3.9 V to 14 V. It is optimized for 9 V to 12 V high-voltage input fast charging, provides programmable input current limiting from 100 mA to 3.25 A in 50 mA steps, and supports USB SDP, CDP, DCP, and non-standard adapter detection. USB 2.0 and USB 3.0 input current and voltage regulation are supported.
BQ25895 also provides Boost Mode operation with a 4.5 V to 5.5 V output range, up to 3.1 A output current, selectable 500 kHz to 1.5 MHz boost switching frequency, and 93% boost efficiency at 5 V output and 1 A load. The package is WQFN-24 with a 4.00 mm x 4.00 mm nominal body. Assembly recommendations include close-placement VBUS, BAT, and SYS capacitors and 10 kΩ pull-ups on STAT, SCL, SDA, and INT.
Key Features
- 5 A switch-mode buck battery charging capability
- 1.5 MHz switch-mode buck charge operation
- 93% efficiency at 2 A charge current
- 91% efficiency at 3 A charge current
- 3.9 V to 14 V single input voltage range
- 100 mA to 3.25 A programmable input current limit
- 4.5 V to 5.5 V Boost Mode output range
- Up to 3.1 A boost converter output current
- I2C serial interface for charging and system settings
- 12 µA battery leakage current in Ship Mode
- Integrated 11 mΩ BATFET supports up to 9 A discharge
- WQFN-24, 4.00 mm x 4.00 mm nominal body
Typical Applications
- Single-cell Li-Ion battery charging
- Single-cell Li-polymer battery charging
- USB host port powered systems
- USB charging port powered systems
- High-voltage adapter fast charging
- OTG 5 V boost output designs
- I2C-controlled charging systems
- System power path management
Procurement Notes
When requesting a quote for BQ25895, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
What battery chemistry does BQ25895 support?
BQ25895 supports single-cell Li-Ion and Li-polymer batteries for battery charge management and system power path management.
What charge current capability is specified for BQ25895?
The BQ25895 switch-mode buck battery charger has a 5 A charge current capability, with charge efficiency specified as 93% at 2 A and 91% at 3 A.
What input sources can the BQ25895 detect?
BQ25895 supports automatic input source detection for USB SDP, CDP, DCP, and non-standard adapters. It is compatible with USB host ports, USB charging ports, and USB-compliant adjustable high-voltage adapters.
What are the BQ25895 Boost Mode output limits?
In Boost Mode, BQ25895 provides a 4.5 V to 5.5 V output range with output current up to 3.1 A. The selectable boost switching frequency range is 500 kHz to 1.5 MHz.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.