电池充电IC
芯晶图电子专业芯片代理公司，提供更优质的产品及技术支持
ESMT(晶豪科技)
电池充电IC
EMC5040-42FF10NRR
The EMC5040 is a complete linear charger for single cell lithium-ion batteries. With both of TDFN-10 and E-SOP-8 packages 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 blockindiode 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
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