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reference designMP2633

Monolithic Power Systems MP2633

1.5A Single Cell Switch Mode Battery Charger with Power Path Management and Boost OTG

Overview

TopologyBuck Converter
Input voltage4.24-6 V
Switching frequency600-1200 kHz
Output 11.5 A
IC revision1.07

Description

The MP2623 is a monolithic, DC-DC, stepdown, 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 applications

  • Power-Bank Applications for Smart-Phone Tablet and other Portable Device
  • Sub-Battery Applications

More information

Products

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Data­sheet
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Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
Qty.
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744311470
SPECWE-HCI SMT Flat Wire High Current Inductor, 4.7 µH, 7.8 A
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance4.7 µH
Performance Rated Current7.8 A
Saturation Current @ 10%2.5 A
Saturation Current @ 30%7 A
DC Resistance19.5 mΩ
Self Resonant Frequency33 MHz
MaterialSuperflux 
Packaging Unit1000 
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