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EMC5040-42FF10NRR fiches techniques PDF

Elite Semiconductor - Standalone Linear Li-Ion Charger

Numéro de référence EMC5040-42FF10NRR
Description Standalone Linear Li-Ion Charger
Fabricant Elite Semiconductor 
Logo Elite Semiconductor 





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EMC5040-42FF10NRR fiche technique
ESMT/EMP
EMC5040
Standalone Linear Li-Ion Charger with
Thermal Regulation
General Description
The EMC5040 is a complete linear charger for single
cell lithium-ion batteries. With small TDFN-10
package and few external components, EMC5040 is
well suited for portable applications. In addition, the
EMC5040 is specifically designed to work within USB
power specifications.
No external sense resistor and blocking diode are
required. Charging current can be programmed
externally with a single resistor. The built-in thermal
regulation facilitates charging with maximum power
without risk of overheating.
The EMC5040 always preconditions the battery with
1/10 of the programmed charge current at the
beginning of a charge cycle, after it verifies that the
battery can be fast-charged. The EMC5040
automatically terminates the charge cycle when
the charge current drops to 1/10th the programmed
value after the final float voltage is reached.
The EMC5040 features 13.5V maximum rating
voltage for AC adapter, and it provides the charge
current up to 1.2A. Other features include battery
temperature monitoring, reverse current protection,
shutdown mode, charging current monitor, under
voltage lockout, automatic recharge and status
indicator.
Features
Programmable charge current up to 1.2A
No MOSFET, sense resistor or blocking diode
required
Complete linear charger in TDFN-10 for single
cell li-ion batteries
Thermal regulation maximizes charge rate
without risk of overheating
Thermistor input for temperature qualified
charging
Charges single cell Li-ion batteries directly
from USB port.
Preset 4.2V charge voltage with ±1%
accuracy
Automatic recharge
Charge status indicator
C/10 charge termination
Battery reverse leakage current less than 1uA
Applications
Wireless handsets
Hand-held instruments
Portable information appliances
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date: Jul. 2012
Revision: 1.2
1/19

PagesPages 19
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