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STMICROELECTRONICS STC4054GR Li-ion Battery Charger

The STC4054 is a compact, standalone linear charger tailored for single cell Li-ion batteries. It supports programmable charge currents up to 800mA, with thermal regulation to prevent overheating, making it ideal for portable devices like cell phones, PDAs, and Bluetooth gadgets. No external sense resistors or diodes are required, simplifying design. It features automatic recharge, charge termination at 1/10th current, and low shutdown current. Its ThinSOT package ensures efficient thermal management, reliability, and easy integration into space-constrained applications, ensuring fast, safe, and efficient battery charging.

Authorized Distributors
Source:Newark
Part No:STC4054GR
Stock:7619
Inv Date:06-11-2026
Price: Unit price: $2.07
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Source:DigiKey
Part No:STC4054GR
Stock:14991
Inv Date:06-11-2026
Price: Unit price: $2.07
Buy/RFQ:
Part No:STC4054GR
Stock:7582
Inv Date:06-12-2026
Price: Unit price: $1.8
Buy/RFQ:
Part No:STC4054GR
Stock:0
Inv Date:06-11-2026
Price: Unit price: $0.785
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STMICROELECTRONICS STC4054GR Li-ion Battery Charger Specifications:

  • Charge current: Programmable up to 800mA
  • Final float voltage: 4.2V ±1%
  • Input voltage: 4.25V to 6.5V
  • Thermal regulation: Yes, maintains approximately 120°C
  • Package: TSOT23-5L
  • Charge termination: 1/10th of programmed current
  • Automatic recharge: Yes, triggers below 4.05V
  • Sleep mode supply current: 25nA
  • Precharge current: 20-70mA depending on battery voltage
  • Charge status output: Open-drain, indicates charging/completion
  • Cycle start on Vcc above UVLO threshold, shutdown below 2.9V
  • Charge current monitor: Vproa output for gas gauging
  • Reverse current in shutdown: 2μA
  • Maximum junction temperature: 125°C
  • Operating temperature range: -40°C to 85°C
  • Thermal resistance junction-ambient: 255°C/W

Buy the STMicroelectronics Series STC4054 Lithium-Ion Battery Charger: STC4054GR

Purchase the STC4054GR lithium-ion battery charger online today for your portable device projects. This compact charger supports programmable current up to 800mA, includes thermal regulation, and features automatic recharge and cycle termination. Its ThinSOT package makes it ideal for space-constrained designs such as smartphones, PDAs, and Bluetooth devices. Easy to integrate, it provides safe, efficient charging without external components like sense resistors or diodes, ensuring reliable performance and quick delivery for your manufacturing needs.

Get STMicroelectronics STC4054GR today—built for precise and reliable single cell Li-ion battery charging with thermal regulation in a compact package.

Frequently Asked Questions

Where can I buy STMICROELECTRONICS STC4054GR?

You can click on the BUY or RFQ button to purchase STC4054GR from an authorized STMICROELECTRONICS distributor.

How do I troubleshoot issues or seek technical support for part STC4054GR?

You can download the STC4054GR datasheet or visit the STMICROELECTRONICS website for support.

Who is the manufacturer of STC4054GR?

STMICROELECTRONICS

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