Overview
The STBC08PMR is a standalone linear Li-Ion battery charger designed by STMicroelectronics. It is optimized for charging single-cell Li-Ion batteries and operates within USB power specifications. The device features constant current/constant voltage charging with thermal regulation, ensuring efficient charging without the risk of overheating. It does not require external components such as sense resistors or blocking diodes, making it a compact and efficient solution for battery charging applications.
Key Specifications
| Parameter | Value |
|---|---|
| Charge Current | Up to 800 mA (programmable) |
| Charge Voltage | 4.2 V (with 1% accuracy) |
| Operating Temperature | -40°C to 85°C |
| Package | VFDFPN 6 (3 x 3 mm) |
| Supply Current in Shutdown Mode | 25 µA |
| RoHS Compliance | Ecopack2 |
Key Features
- Programmable charge current up to 800 mA
- No external MOSFET, sense resistors, or blocking diode required
- Complete linear charger for single-cell Li-Ion batteries
- Constant current/constant voltage operation with thermal regulation
- Two charge status output pins
- Charge single-cell Li-Ion batteries directly from USB port
- Automatic recharge and undervoltage lockout
- C/10 charge termination
- Low battery voltage detection for pre-charge setting
- Soft-start feature limits inrush current
- DFN6 (3 x 3 mm) package for improved power dissipation
Applications
The STBC08PMR is suitable for a variety of applications requiring efficient and reliable Li-Ion battery charging. These include portable electronics, industrial devices, and any system where single-cell Li-Ion batteries are used. Its compact design and low power consumption make it an ideal choice for space-constrained and power-sensitive applications.
Q & A
- What is the maximum charge current of the STBC08PMR?
The maximum charge current of the STBC08PMR is up to 800 mA, which is programmable using a single resistor. - What is the charge voltage of the STBC08PMR?
The charge voltage is fixed at 4.2 V with 1% accuracy. - Does the STBC08PMR require external sense resistors or blocking diodes?
No, the STBC08PMR does not require external sense resistors or blocking diodes. - How does the STBC08PMR handle thermal regulation?
The STBC08PMR features internal thermal regulation to protect the device from overheating during high power or high ambient temperature conditions. - What is the operating temperature range of the STBC08PMR?
The operating temperature range is from -40°C to 85°C. - What package type is the STBC08PMR available in?
The STBC08PMR is available in a VFDFPN 6 (3 x 3 mm) package. - What is the supply current in shutdown mode?
The supply current in shutdown mode is 25 µA. - Does the STBC08PMR support automatic recharge?
Yes, the STBC08PMR supports automatic recharge. - How is charge termination indicated?
Charge termination is indicated by two separate status pins. - What is the purpose of the soft-start feature in the STBC08PMR?
The soft-start feature limits inrush current during startup.
