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BQ25692-Q1
Automotive stand-alone or I2C-controlled bidirectional, iFET buck-boost battery charger
Data sheet
BQ25692-Q1
- AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C ≤ TA ≤ 125°C
- High integration buck-boost forward (sink) mode charger for 1- to 7-cell Li-Ion batteries supporting USB PD profile with integrated switching MOSFETs and loop compensation
- Highly efficient
- Programmable switching frequency from 450kHz to 1.2MHz
- Bypass mode for >98.5% efficiency USB-PD PPS direct battery charging at 20V, 3A
- Selectable PFM with out-of-audio (OOA) operation for light load efficiency improvement
- Supports a wide range of input sources with 2.5V to 36V operating range and 45V absolute maximum rating
- Support VIN down to 2.5V with VBAT > 3.2V
- USB-PD input
- Input voltage dynamic power management (VINDPM) up to 36V to prevent input source overload
- Optional input current dynamic power management (IINDPM) up-to 3.3A for maximum power limit
- I2C controlled for optimal system performance with resistor-programmable option
- Hardware selectable default cell count, charge voltage, input and charge current limits
- 3A charging current with 20mA resolution
- Reverse/OTG (source) mode powers input port from battery
- 3.5V to 34V reverse output voltage with 20mV resolution to support USB-PD PPS
- Up-to 3.3A reverse output current regulation with 20mA resolution to support USB-PD PPS
- Low quiescent current
- TBD µA for battery only operation
- TBD µA for converter switching
- High accuracy
- TBD charge voltage regulation
- TBD input/output current regulation
- Safety
- Input and battery OVP
- Thermal regulation and thermal shutdown
- Converter MOSFETs OCP
- Charging safety timer
The BQ25692-Q1 is a fully integrated switch-mode buck-boost charger for 1- to 7cell Li-ion batteries, Li-polymer batteries. Wide input voltage range from 2.5V to 36V supports applications powered from battery, standard USB-PD adapters and high voltage dedicated DC adapters. The device integrates 4 switching MOSFETs and all the converter loop compensation for small solution size with simple design. The device also supports the full input (sink) and output (reverse or source mode) voltage ranges for USB Type-C and USB power delivery (USB-PD) applications.
Technical documentation
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View all 2 | Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | BQ25692-Q1: Standalone/I2 C Controlled, 1-7 Cell Li-Ion, 3A Buck-Boost Bidirectional Battery Charger with USB-PD 3.0 OTG Output datasheet | PDF | HTML | 16 Oct 2025 |
| Certificate | BQ25692-Q1EVM EU Declaration of Conformity (DoC) | 09 Oct 2025 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
BQ25692-Q1EVM — BQ25692-Q1 evaluation module
The BQ2569X/9X-Q1 evaluation module (EVM) is used to evaluate the BQ2569X/9X-Q1 integrated circuit. The BQ2569X/9X-Q1 is an integrated switched-mode buck-boost battery charge management device in HOTROD (QFN) package, intended for charging 1-series to 7-series cell Li chemistry batteries with up to (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| WQFN-HR (RBA) | 26 | Ultra Librarian |
Ordering & quality
Information included:
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Information included:
- Fab location
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