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STMicroelectronics - Battery charger system

Numéro de référence L6924D
Description Battery charger system
Fabricant STMicroelectronics 
Logo STMicroelectronics 





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L6924D fiche technique
L6924D
Battery charger system with integrated
power switch for Li-Ion/Li-Polymer
Features
Fully integrated solution, with a power
MOSFET, reverse blocking diode, sense
resistor, and thermal protection
Ideal for coke and graphite anode single-cell LI-
ION packs
Both linear and quasi-pulse operation
Closed loop thermal control
USB BUS-compatible
Programmable charge current up to 1 A
Programmable pre-charge current
Programmable end-of-charge current
Programmable pre-charge voltage threshold
Programmable charge timer
Programmable output voltage at 4.1 V and 4.2
V, with ± 1 % output voltage accuracy
(NTC) or (PTC) thermistor interface for battery
temperature monitoring and protection
Flexible charge process termination
Status outputs to drive LEDs or to interface
with a host processor
Small VFQFPN 16-leads package (3 x 3 mm)
Applications
PDAs
Handheld devices
Cellular phones
Digital cameras
Standalone chargers
USB-powered chargers
Table 1. Device summary
Order code
L6924D
L6924D013TR
Package
VFQFPN16
September 2010
Doc ID 11908 Rev 9
VFQFPN16
Packaging
Tube
Tape and reel
1/38
www.st.com
38

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