STC4054GR ST Battery Chargers

The STC4054GR from STMicroelectronics is a constant‑current/constant‑voltage standalone linear charger purpose‑built for single‑cell Li‑Ion batteries, delivering up to 800mA programmable charging current in a compact TSOT‑23‑5 package. For selection, its core advantages include no requirement for an external MOSFET, sense resistor, or blocking diode—minimizing BOM count and PCB area—as well as an internal thermal regulation loop that automatically reduces charge current when the die temperature exceeds 120 °C, maximizing safe charge rate. The 4.2 V preset charge voltage with ±1 % accuracy, soft‑start inrush limiting, automatic recharge, and C/10 charge termination ensure reliable, hassle‑free operation across a 4.25 V–6.5 V supply and –40 °C to +85 °C temperature range. In application, it is ideally suited for charging batteries in cellular telephones, PDAs, Bluetooth headsets, portable media players, digital cameras, and low‑power IoT sensor nodes, especially where charging from a USB port or a compact footprint is essential. In stock at HL Electronics – request a quote for fast delivery.