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STC4054 Fiches technique (PDF) - STMicroelectronics

STC4054 Datasheet PDF - STMicroelectronics
No de pièce STC4054
Télécharger  STC4054 Télécharger

Taille du fichier   299.22 Kbytes
Page   17 Pages
Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics
Description 800mA Standalone linear Li-Ion Battery charger with thermal regulation

STC4054 Datasheet (PDF)

Go To PDF Page Télécharger Fiches technique
STC4054 Datasheet PDF - STMicroelectronics

No de pièce STC4054
Télécharger  STC4054 Click to download

Taille du fichier   299.22 Kbytes
Page   17 Pages
Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics
Description 800mA Standalone linear Li-Ion Battery charger with thermal regulation

STC4054 Fiches technique (HTML) - STMicroelectronics

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STC4054 Détails du produit

Description
The STC4054 is a constant current/constant voltage charger for single cell Li-Ion batteries. No external sense resistor or blocking diode is required and its ThinSOT package make it ideally suited for portable applications. The STC4054 is designed to work within USB power specifications. An internal block regulates the current when the junction temperature increases, in order to protect the device when it operates in high power or high ambient temperature.
The charge voltage is fixed at 4.2V, and the charge current limitation can be programmed using a single resistor connectd between PROG pin and GND. The charge cycle is automatically terminated when the current flowing to the battery is 1/10 of the programmed value. If the external adaptor is removed, the STC4054 turns off and a 2µA current can flow from the battery to the device. The device can be put into Shutdown Mode, reducing the supply current to 25µA. The device also has a charge current monitor, under voltage lockout, automatic recharge. The device is packaged in TSOT23-5L.

Feature summary
■ Programmable charge current up to 800mA
■ No external MOSFET, sense resistors or blocking diode required
■ Constant current / constant voltage operation
   with thermal regulation to maximize charge
   rate without risk of overheating
■ Charges single cell li-ion batteries directly from USB port
■ Preset 4.2V charge voltage with 1% accuracy
■ Automatic recharge
■ Single charge status output pin
■ Charge current monitor output for gas gauging
■ C/10 Charge termination
■ 25µA supply current in shutdown mode
■ Low battery voltage detect for precharge setting
■ Soft-start limits inrush current
■ TSOT23-5L package

Applications
■ Cellular telephones
■ PDAs
■ Bluetooth applications
■ Battery-powered devices




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À propos de STMicroelectronics


Stmicroelectronics est un fabricant multinational d'électronique et de semi-conducteurs basé à Genève, en Suisse.

La société propose une large gamme de produits, notamment des microcontrôleurs, des capteurs, des amplificateurs de puissance et des circuits intégrés pour diverses applications sur les marchés automobiles, industriels et consommateurs.

Fondée en 1987, Stmicroelectronics a des opérations dans plus de 100 pays et est l'une des plus grandes sociétés de semi-conducteurs au monde.

*Ces informations sont fournies à titre informatif uniquement, nous ne serons pas responsables des pertes ou dommages causés par les informations ci-dessus.




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