Overview
The BQ24092DGQR is a highly integrated 1-A, single-input, single-cell Li-ion and Li-Pol battery charger from Texas Instruments. This device is designed for space-limited portable applications and operates from either a USB port or an AC adapter. It features high accuracy in charge voltage and current, along with comprehensive protection mechanisms such as overvoltage protection, thermal regulation, and short-circuit protection. The charger supports operation over the JEITA temperature range and includes a 10 kΩ NTC thermistor for temperature sensing.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 3.5 - 12 | V |
| Output Current (Fast Charge) | 10 - 1000 | mA |
| Battery Regulation Voltage | 4.16 - 4.23 | V |
| Overvoltage Protection | 6.6 | V |
| Junction Temperature Range | 0 - 125 | °C |
| Thermal Shutdown | 150 | °C |
| Package Type | HVSSOP-10 | |
| Package Size | 3.00 mm x 3.00 mm |
Key Features
- 1% charge voltage accuracy and 10% charge current accuracy
- Pin selectable USB 100-mA and 500-mA maximum input current limit
- Programmable termination and precharge threshold
- Overvoltage protection (6.6 V), input voltage dynamic power management, and thermal regulation (125°C)
- Short-circuit protection and ISET short detection
- Operation over JEITA temperature range via battery NTC
- Automatic Termination and Timer Disable Mode (TTDM) for absent battery pack with thermistor
- Status indication for charging/done
Applications
- Smartphones
- PDAs
- MP3 players
- Low-power handheld devices
Q & A
- What is the input voltage range of the BQ24092DGQR?
The input voltage range is 3.5 V to 12 V. - What is the accuracy of the charge voltage and current?
The charge voltage accuracy is 1%, and the charge current accuracy is 10%. - What are the programmable features of the BQ24092DGQR?
The device allows for programmable termination and precharge threshold, as well as programmable fast-charge current via an external resistor. - What protection mechanisms are included in the BQ24092DGQR?
The device includes overvoltage protection, thermal regulation, short-circuit protection, and ISET short detection. - How does the BQ24092DGQR handle temperature sensing?
The device operates over the JEITA temperature range and includes a 10 kΩ NTC thermistor for temperature sensing. - What is the purpose of the Automatic Termination and Timer Disable Mode (TTDM)?
TTDM is used for absent battery pack with thermistor, disabling timers and termination. - What is the package type and size of the BQ24092DGQR?
The package type is HVSSOP-10, and the size is 3.00 mm x 3.00 mm. - What are some typical applications of the BQ24092DGQR?
Typical applications include smartphones, PDAs, MP3 players, and low-power handheld devices. - How does the BQ24092DGQR indicate charging status?
The device provides status indication for charging/done. - What is the thermal shutdown temperature of the BQ24092DGQR?
The thermal shutdown temperature is 150°C.
