Overview
The BQ24090DGQT from Texas Instruments is a highly integrated, single-input, single-cell Li-ion and Li-Polymer battery charger. This device is designed to provide accurate and efficient charging for a variety of battery-powered applications. It features a compact HVSSOP-10 package, making it suitable for space-constrained designs. The BQ24090DGQT includes advanced charging algorithms and safety features, ensuring reliable and safe battery charging operations.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Output Current | 1 A | Maximum output current for fast charging |
| Output Voltage | 4.2 V | Regulated output voltage for Li-ion/Li-Polymer batteries |
| Input Current Limit | 100 mA / 500 mA | Pin selectable USB input current limit |
| Charge Voltage Accuracy | 1% | High accuracy in charge voltage regulation |
| Charge Current Accuracy | 10% | High accuracy in charge current regulation |
| Operating Temperature | 0°C to 125°C | Range of operating temperatures |
| Package Type | HVSSOP-10 | Surface mount package type |
| Interface | USB | Supports USB input for charging |
Key Features
- High Accuracy Charging: 1% charge voltage accuracy and 10% charge current accuracy ensure precise battery charging.
- Programmable Charge Current: The fast charge current value is programmable via an external resistor.
- Integrated Power Stage and Current Sense: Fully integrated charger power stage and charge current sense functions.
- Charge Status Display and Termination: Includes charge status display and charge termination features.
- NTC Support: Supports 10kΩ NTC for temperature sensing.
- Compact Package: HVSSOP-10 package suitable for space-constrained designs.
Applications
- Portable Electronics: Ideal for charging batteries in smartphones, tablets, and other portable devices.
- Wearable Devices: Suitable for smartwatches, fitness trackers, and other wearable electronics.
- Industrial Devices: Can be used in various industrial applications requiring reliable battery charging.
- Consumer Electronics: Applicable in a wide range of consumer electronics that use Li-ion or Li-Polymer batteries.
Q & A
- What is the maximum output current of the BQ24090DGQT?
The maximum output current is 1 A.
- What is the regulated output voltage for the BQ24090DGQT?
The regulated output voltage is 4.2 V for Li-ion/Li-Polymer batteries.
- Can the input current limit be adjusted on the BQ24090DGQT?
Yes, the input current limit is pin selectable between 100 mA and 500 mA.
- What is the charge voltage accuracy of the BQ24090DGQT?
The charge voltage accuracy is 1%.
- How is the fast charge current programmed on the BQ24090DGQT?
The fast charge current is programmable via an external resistor.
- What is the operating temperature range of the BQ24090DGQT?
The operating temperature range is from 0°C to 125°C.
- What package type does the BQ24090DGQT use?
The BQ24090DGQT uses an HVSSOP-10 package.
- Does the BQ24090DGQT support USB input?
Yes, it supports USB input for charging.
- Is the BQ24090DGQT suitable for industrial applications?
Yes, it can be used in various industrial applications requiring reliable battery charging.
- What types of batteries does the BQ24090DGQT support?
The BQ24090DGQT supports single-cell Li-ion and Li-Polymer batteries.
