STBC08PMR STMicroelectronics

STBC08 Datasheet 800 mA standalone linear Li-Ion battery charger with thermal regulation Features Programmable charge current up to 800 mA No external MOSFET, sense resistors or blocking diode are required Complete linear charger for single-cell Li-Ion batteries Constant current/constant voltage operation with thermal regulation to maximize DFN6 (3 x 3 mm) charge rate without risk of overheating Two charge status output pins Charge single-cell Li-Ion batteries directly from USB port Preset 4.2 V charge voltage with 1% accuracy Charge current monitor for gas gauge Automatic recharge Undervoltage lockout C/10 charge termination 25 A supply current in shutdown mode Low battery voltage detection for pre-charge setting Soft-start feature limits inrush current DFN6 (3 x 3 mm) package (to improve power dissipation) Applications Cellular phones PDAs Maturity status link Bluetooth applications STBC08 Battery-powered devices Device summary Description Order code STBC08PMR The STBC08 is a constant current/constant voltage charger for single-cell Li-Ion Package DFN6 (3 x 3 mm) batteries. Packaging 4500 pieces/reel Neither external sense resistor nor blocking diode are required. The STBC08 is designed to work within USB power specifications. An internal block regulates the current when the junction temperature increases, to protect the device when it operates in high power or high ambient temperature conditions. The charge voltage is fixed at 4.2 V, and current limitation can be programmed using a single resistor connected between PROG pin and GND. The charge cycle is automatically terminated when the current, which flows to the battery, is 1/10 of the programmed value. If the external adapter is removed, the STBC08 turns off and a 2 A current can flow from the battery to the device. The device can be in shutdown mode, reducing the supply current to 25 A. The device also has a charge current monitor, undervoltage lockout, automatic recharge. The charge termination and input voltage presence are indicated by two separated status pins. DS4901 - Rev 4 - November 2018 www.st.com For further information contact your local STMicroelectronics sales office.STBC08 Application diagram 1 Application diagram Figure 1. Block diagram 1 A DS4901 - Rev 4 page 2/20