STBC03JR

Overview

The STBC03JR is a highly integrated power management IC designed for single-cell Lithium-ion battery applications. It embeds a linear battery charger, a 150 mA LDO regulator, two SPDT load switches, and a protection circuit module. The device supports fast charge currents up to 650 mA and adjustable floating voltages up to 4.45 V. It operates within an input voltage range of 5.4 V and functions in temperatures from -40°C to +85°C. The unit weighs 11 mg and utilizes a FlipChip-30 package.

Feature Summary

• Integrates CC/CV charging algorithm with programmable current and voltage termination
• Includes automatic power path management and low quiescent LDO regulator
• Features embedded protection against overcharge, over-discharge, and overcurrent
• Supports shipping mode with ultra-low battery leakage for shelf life preservation

Applications

• Single-cell Li-Ion battery charging systems
• Portable electronic devices requiring integrated power management
• Applications necessitating automatic power path switching

Procurement Notes

Verify the specific suffix 'JR' against the official STMicroelectronics datasheet to confirm package type and tape/reel specifications. Ensure compatibility with the required FlipChip-30 footprint and thermal dissipation requirements. Confirm RoHS compliance status through the manufacturer's documentation before finalizing procurement orders.

Selection Notes

Select this component when a compact solution combining charging, regulation, and load switching is required. It is suitable for designs prioritizing minimal external component count and low standby current consumption. Evaluate the 650 mA maximum output current against the target battery capacity and charging time requirements.

Part Context

The STBC03JR belongs to the STBC03 series of power management ICs from STMicroelectronics. This series focuses on providing complete power solutions for portable electronics by integrating multiple functions into a single small-footprint package. It addresses the need for efficient energy management in battery-powered consumer devices.

FAQ

How is the charge termination current determined?

The termination current is set to 5% of the programmed fast charge current, though fixed values apply for fast charge currents lower than 20 mA.

What happens if the IN pin is not connected to a valid power source?

The STBC03 automatically powers off from the connected battery when the IN pin lacks a valid power source, entering battery mode.