Part Name
SC824
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PDF
page
29 Pages
File Size
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MFG CO.
Semtech Corporation
SC824 Datasheet - Semtech Corporation
Semtech Corporation
Description
The SC824 is a single input triple mode (adapter/USB High, USB Low) linear single-cell Li-Ion battery charger in a 10 lead 2×2 (mm) MLPD ultra-thin package.
Charging begins automatically when an input source is applied to the charging input. The input is designed to survive sustained input voltage up to 30V to protect against hot plug overshoot and faulty charging adapters. Thermal limiting protects the SC824 from excessive power dissipation.
Features
◾ Single input 30V protected charger
◾ Adapter, USB High, USB Low modes
◾ Charging by current regulation, voltage regulation,
and thermal limiting
◾ Programmable currents from 70mA to 1A
◾ Fast-charge current regulation — 15% at 70mA,
9% at 700mA
◾ Constant voltage — 4.2V, 1% regulation
◾ Input voltage protection — 30V
◾ Current-limited adapter support capability — reduces
power dissipation in charger IC
◾ USB modes automatically reduce charge current if
needed to prevent USB Vbus overload
◾ Instantaneous CC-to-CV transition for faster charging
◾ Battery temperature NTC thermistor interface
◾ Multi-stage charge timer for safety and alternative
termination, IEEE Std. 1725-2006 compliant
◾ Termination on current or timer — first to occur
◾ Soft-start reduces adapter or USB load transients
◾ High operating voltage range permits use of
unregulated adapters
◾ Complies with CCSA YD/T 1591-2006
◾ High-current USB Dedicated Charger compatible
◾ Ultra-thin 2×2×0.6 (mm) MLPD package
◾ Lead-free and halogen-free
◾ WEEE and RoHS compliant
Applications
◾ Mobile phones
◾ Personal Media Players
◾ Personal Navigation Devices
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