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12V耐压线性锂离子电池充电器,高耐压4054有那些?
Description
The BT4054 is a low cost, Single-cell, constant-current/constant-voltage Li-Ion battery charger. with a few external components the
BT4054 is very small standalone charger for single lithium-ion batteries.
Charge current is set externally with a single resistor, no blocking diode is required due to the internal MOSFET architecture. The BT4054 charges to a final float voltage accurate to ±0.6%, The BT4054 automatically terminates the charge cycle when the charge current drops to 1/10th the programmed value after the final float voltage is reached and automatically puts into a sleep mode while removing input power.
The output is both current and thermally protected to prevent operating outside of safe limits. UVLO, Thermal, OVP and reverse connection protection are also available.
The BT4054 is available in SOT23-5 package.
Features
Standalone Li-Ion Charger with Thermal regulation
Preset Charge Voltage with ±0.6% accuracy
Suitable for USB-Powered Charging
No Sense resistor or blocking diode required
Programmable charge current: 100mA to 600mA.
C/10 Charge termination
12V Absolute maximum Input voltage.
Low battery charging conditioning
6.2V Input Over Voltage Protect
Automatic Recharge
Negligible Battery Drain Current in Shutdown
Protection against battery reverse connection
Self-protection for overcurrent/overtemperature
Available in SOT23-5 Package
Applications
Cellular telephones
Handheld computers
Charging docks and cradles
Low cost and small size chargers
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