概要

The SC820 is a dual input (adapter/USB) linear single-cell Li-ion battery charger in an 8 lead 2x2 MLPD ultra-thin package. Both inputs will survive sustained input voltage up to 30V to protect against hot plug overshoot and faulty charging adapters.

Packaging

MLPD-8 2x2

Order Codes

SC820ULTRT: Lead-free package, fully WEEE and RoHS compliant, tape and reel only.

PB Free/ROHS

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Features

Dual input charger automatically selects adapter input over USB
Constant voltage — 4.2V, 1% regulation
Fast-charge current regulation — 15% at 70mA, 9% at 700mA
Three mode charging (current regulation, voltage regulation, thermal limiting)
Input voltage protection — 30V
Current-limited adapter charging support — reduces power dissipation in charger
USB input limits charge current to prevent VBUS overload
Instantaneous CC-to-CV transition for faster charging
Programmable battery-dependent currents (adaptersourced fast-charge & pre-charge, termination)
Programmable source-limited currents (USB-sourced fast-charge & pre-charge)
Three termination options — fl oat-charge, automatic re-charge, or forced re-charge to keep the battery topped-off after termination without fl oat-charging
Soft-start reduces adapter or USB load transients
High operating voltage range permits use of unregulated adapters
Complies with CCSA YD/T 1591-2006
Space saving 2x2x0.6 (mm) MLPD package
WEEE and RoHS compliant