Overview
The BQ25883RGER, produced by Texas Instruments, is a highly-integrated 2-A boost switch-mode battery charge management and system power path management device. It is specifically designed for 2-cell (2s) Li-Ion and Li-polymer batteries. This device features high-efficiency charging, optimized for USB input, and includes advanced power path management and USB on-the-go (OTG) capabilities.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | VQFN (24-pin) | - |
| Operating Temperature Range | -40 to 85 | °C |
| Input Voltage Range | 3.9 to 6.2 | V |
| Maximum Input Current | 3.3 A | A |
| Charge Current Range | 100 to 2200 | mA |
| Charge Efficiency | 93.4% at 5V adapter, 7.6-V battery, 1-A charge | % |
| Battery Voltage Range | 6.8 to 9.2 | V |
| OTG Output Current | Up to 2 A | A |
| Switching Frequency | 1.5 MHz | Hz |
| Thermal Resistance (Junction-to-Ambient) | 32.4 | °C/W |
Key Features
- High-efficiency 2-A, 1.5MHz switch mode boost charger with 93.4% charge efficiency at 5V adapter and 7.6-V battery.
- Optimized for USB input and 2-cell Li-Ion battery.
- Selectable low power PFM mode for light load operation.
- Input current optimizer (ICO) to maximize input power without overloading adapters.
- Integrated 16-bit ADC for system monitoring (BUS voltage and current, each cell voltage, charge current, SYS voltage, and NTC and die temperature).
- Power path management and I2C control with OTG.
- Instant-on system on with no battery or deeply discharged battery.
- Ideal diode operation in battery supplement mode.
- USB on-the-go (OTG) with adjustable output from 4.5V to 5.5V.
- Buck converter with up to 2 A output and 94% efficiency at 5 V, 1 A output.
- Accurate constant current (CC) regulation and output short protection.
- Battery temperature sensing in charge and OTG buck mode.
- Thermal regulation and thermal shutdown.
Applications
- Bluetooth speakers.
- EPOS printers.
- Portable POS systems.
- Wireless security cameras.
Q & A
- What is the BQ25883RGER used for?
The BQ25883RGER is used for 2-cell (2s) Li-Ion and Li-polymer battery charge management and system power path management. - What is the maximum charge current of the BQ25883RGER?
The maximum charge current is 2.2 A. - What is the input voltage range of the BQ25883RGER?
The input voltage range is 3.9 to 6.2 V. - What is the efficiency of the BQ25883RGER at 5V adapter and 7.6-V battery?
The efficiency is 93.4% at 5V adapter and 7.6-V battery. - Does the BQ25883RGER support USB on-the-go (OTG)?
Yes, it supports USB OTG with adjustable output from 4.5V to 5.5V. - What is the switching frequency of the BQ25883RGER?
The switching frequency is 1.5 MHz. - Does the BQ25883RGER have thermal protection features?
Yes, it includes thermal regulation and thermal shutdown. - What type of ADC is integrated into the BQ25883RGER?
It has an integrated 16-bit ADC for system monitoring. - What are some common applications of the BQ25883RGER?
Common applications include Bluetooth speakers, EPOS printers, portable POS systems, and wireless security cameras. - How does the BQ25883RGER manage power paths?
The device features power path management with I2C control and ideal diode operation in battery supplement mode.
