Specifications
| Type | Description |
|---|---|
| Part Number | BQ25890H |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Package / Case | 24-pin WQFN (RTW), 4.00 mm x 4.00 mm x 0.75 mm |
| Battery Chemistry | Single-cell Li-Ion and Li-polymer; battery charge management |
| Maximum Fast Charge Current | 5 A; switch-mode buck charger |
| Switching Frequency | 1.5 MHz; buck charging mode |
| Charge Efficiency at 2 A | 93%; 2 A charge current |
| Charge Efficiency at 3 A | 91%; 3 A charge current |
| Input Voltage Range | 3.9 V to 14 V; USB input and adjustable high-voltage adapters |
| Input Current Limit Range | 100 mA to 3.25 A; 50 mA resolution |
| Input Current Limit Resolution | 50 mA; I2C programmable input current limit |
| Maximum Power Tracking Voltage Limit | Up to 14 V; wide range of adapters |
| OTG Output Voltage Range | 4.5 V to 5.5 V; USB On-the-Go boost mode |
| OTG Output Current | Up to 2.4 A; boost converter output |
| Boost Switching Frequency Options | 500 kHz or 1.5 MHz; selectable boost converter frequency |
| Boost Efficiency | 93%; 5 V output at 1 A |
| Boost Minimum Battery Voltage | 2.5 V; OTG boost mode support |
| Battery Discharge MOSFET On Resistance | 11 mΩ; integrated BATFET discharge path |
| Battery Discharge Current Capability | Up to 9 A; battery discharge MOSFET |
| Battery Leakage Current | 12 µA; low battery leakage current in ship mode |
| Charge Voltage Regulation Accuracy | ±0.5%; charge voltage regulation |
| Charge Current Regulation Accuracy | ±5%; charge current regulation |
| Input Current Regulation Accuracy | ±7.5%; input current regulation |
| ADC Resolution | 7-bit; monitoring VBUS, BAT, SYS, TS voltages and charge current |
| Minimum System Voltage | 3.5 V; programmable minimum system voltage |
| Thermal Regulation Threshold | 120°C; programmable junction temperature threshold for reducing charge current |
| VBUS Pin Capacitor | 1 µF ceramic; placed from VBUS to PGND close to IC |
| STAT Pullup Resistor | 10 kΩ; connected to pullup rail |
| SCL Pullup Resistor | 10 kΩ; connected to logic rail |
| SDA Pullup Resistor | 10 kΩ; connected to logic rail |
| INT Pulse Width | 256 µs; active-low interrupt pulse to host |
| INT Pullup Resistor | 10 kΩ; connected to logic rail |
| STAT Fault Blink Rate | 1 Hz; any fault condition occurs |
| ILIM Regulation Voltage | 0.8 V; ILIM pin sets maximum input current limit |
| Minimum Supported ILIM Pin Current Limit | 500 mA; input current limit on ILIM pin |
| Recommended Thermistor | 103AT-2; TS pin battery temperature qualification |
| Ship Mode Exit Low Duration | 1 s typical; QON logic low turns on BATFET to exit shipping mode |
| System Reset Low Duration | 15 s typical; QON logic low with VBUS not plugged in |
| BATFET Reset Off Time | 0.3 s typical; full system reset by QON |
| BAT Pin Capacitor | 10 µF; connected close to BAT pin |
| Datasheet Status | request_only |
Product Overview
The BQ25890H is a Texas Instruments single-cell fast charger IC in the Power_Management category. It supports single-cell Li-Ion and Li-polymer battery charge management with switch-mode buck charging up to 5 A and 1.5 MHz switching frequency. Charge efficiency is specified at 93% for 2 A charge current and 91% for 3 A charge current.
Input operation covers USB input and adjustable high-voltage adapters from 3.9 V to 14 V. The I2C-programmable input current limit spans 100 mA to 3.25 A with 50 mA resolution, while maximum power tracking voltage limiting supports adapters up to 14 V.
The device includes USB OTG boost mode with 4.5 V to 5.5 V output, up to 2.4 A output current, selectable 500 kHz or 1.5 MHz boost switching, and 93% boost efficiency at 5 V output and 1 A. Assembly details include a 24-pin WQFN (RTW), 1 µF VBUS ceramic capacitor, 10 µF BAT capacitor, and 10 kΩ pullups for STAT, SCL, SDA, and INT.
Key Features
- Single-cell Li-Ion and Li-polymer charge management
- 5 A switch-mode buck fast charge current
- 1.5 MHz buck charging switching frequency
- 3.9 V to 14 V USB and adapter input range
- 100 mA to 3.25 A programmable input current limit
- 4.5 V to 5.5 V USB OTG boost output
- Up to 2.4 A boost converter output current
- 500 kHz or 1.5 MHz selectable boost frequency
- 7-bit ADC monitors VBUS, BAT, SYS, TS, and charge current
- 11 mΩ integrated BATFET discharge path
- 120°C programmable thermal regulation threshold
- 24-pin WQFN package, 4.00 mm x 4.00 mm
Typical Applications
- Single-cell Li-Ion battery chargers
- Single-cell Li-polymer battery chargers
- USB input charging systems
- Adjustable adapter charging systems
- USB On-the-Go boost outputs
- Host-monitored battery power paths
- Ship-mode battery-powered equipment
- Thermistor-qualified charging designs
Procurement Notes
When requesting a quote for BQ25890H, 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 the BQ25890H support?
The BQ25890H supports single-cell Li-Ion and Li-polymer battery charge management. The extracted datasheet facts identify it as a single-cell fast charger IC for these battery chemistries.
What is the maximum fast charge current of BQ25890H?
The maximum fast charge current is 5 A in switch-mode buck charger operation. Buck charging uses a 1.5 MHz switching frequency according to the extracted datasheet facts.
What input voltage range is specified for BQ25890H?
The input voltage range is 3.9 V to 14 V for USB input and adjustable high-voltage adapters. The device also supports maximum power tracking voltage limiting up to 14 V.
What USB OTG boost output does BQ25890H provide?
In USB On-the-Go boost mode, the BQ25890H provides a 4.5 V to 5.5 V output range with output current up to 2.4 A. Boost switching frequency options are 500 kHz or 1.5 MHz.
What package is used for the BQ25890H?
The BQ25890H is supplied in a 24-pin WQFN (RTW) package. The extracted package dimensions are 4.00 mm x 4.00 mm x 0.75 mm.
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.