MPS > Switching Chargers > MP2623  

Product

MP2623 

Product Info

Stand-Alone, 2A, 1- or2-Cell Switching LiFePO4 Battery Charger

Description

The MP2623 is a monolithic, DC-DC, step-down, switching charger for a 1-or-2-cell serial LiFePO4 battery. It has an integrated high-side power MOSFET that can output up to a 2A charge current. It also has peak-current–mode control for fast loop response and easy compensation.  The MP2623 uses a sense resistor to control a programmable charge current, and accurately regulates the charge current and the charge voltage using two control loops.  The MP2623 has multiple fault-condition protections that include cycle-by-cycle current limiting and thermal shutdown. Other safety features include battery temperature monitoring and protection, charge status indication and a programmable timer to halt charging after a set time period.  The MP2623 requires a minimal number of readily-available external components.  The MP2623 is available in a 4mm×4mm 16-pin QFN package.

Features

• Charges 1- and 2-Cell LiFePO4 Battery Packs
• Wide Operating-Input Range
• Programmable Charging Current of up to 2A
• ±0.75% VBATT Accuracy
• 0.2Ω Integrated Power MOSFET
• Up to 90% Efficiency
• Fixed 1.1MHz Frequency
• Preconditioning for Fully-Depleted Batteries
• Charging Status Indicator
• Input Supply Fault Indicator
• Thermal Shutdown
• Cycle-by-Cycle Over-Current Protection
• Battery Temperature Monitor and Protection

Typical Application

 

Efficiency Curve

 

Vin (Min) (V)

4.5 

Vin (Max) (V)

24 

# of Cells

12 

Icharge (A)

Up to 2.0 

Trickle Charge

 

Charge Status

 

Charge Type

CV/CC Switching 

Switching Freq (kHz)

1100 

Package 1

QFN16 

Datasheet Download

Click here to download datasheet 

Eval Board Download

EV2623-R-00A

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