STC4054GR - Battery Charger IC by STMicroelectronics

The STC4054GR is a compact, highly integrated battery charger IC designed by STMicroelectronics for charging single-cell Lithium-ion batteries. This advanced power management integrated circuit (PMIC) offers a cost-effective solution for portable devices where space and power efficiency are critical.

With its wide input voltage range and adjustable charge current, the STC4054GR provides a flexible charging solution that can be tailored to the needs of various applications, including smartphones, digital cameras, and other portable electronics. The device ensures safe and efficient charging with features such as automatic recharge, charge termination, and a built-in timer for end-of-charge control.

Key Features:

• Input Voltage Range: The STC4054GR operates with an input voltage range from 4.0V to 8.0V, making it suitable for use with USB power sources and wall adapters.
• Charge Current: Programmable charge current up to 800mA allows for fast charging of the battery, reducing the time needed to fully charge the device.
• Battery Voltage: The charge voltage is fixed at 4.2V, which is ideal for charging single-cell Lithium-ion batteries.
• Charge Termination: The charger IC includes an automatic charge termination feature that stops the charging process once the battery is fully charged, preventing overcharging and enhancing battery lifespan.
• Thermal Protection: Thermal shutdown and temperature regulation protect the IC and the battery from damage due to excessive heat.
• Low Standby Current: The low standby current reduces power drain when the charger is connected but not actively charging, conserving energy.

The STC4054GR also features a status output pin that can be used to indicate the charging status through an LED or to interface with a microcontroller for more advanced battery management systems. Its small package size and minimal external component requirement make it an excellent choice for space-constrained applications.

STMicroelectronics' commitment to quality and reliability is evident in the STC4054GR, providing designers with a dependable charging solution that enhances the user experience by ensuring devices are charged quickly, safely, and efficiently.