MP2650 4-21V I2C-Controlled 5A Buck or Boost Charger QFN-30

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MP2650 4-21V I2C-Controlled 5A Buck or Boost Charger QFN-30

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pMPS MP2650 — I2C-Controlled 5A Buck or Boost Charger, 4-21V input, 5 A output, QFN-30./p

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MPS Battery Management charger Boost LED Buck QFN-30

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MP2650 4-21V I2C-Controlled 5A Buck or Boost Charger QFN-30

The MPS MP2650 is a I2C-Controlled 5A Buck or Boost Charger. It operates from a 4 V to 21 V input, is rated for 5 A and handles 2s to 4s battery stacks. It is supplied in a QFN-30 package.

The MP2650 is a highly integrated buck or boost charger IC with narrow-voltage DC (NVDC) power path management and USB On- The-Go (OTG) for battery packs with 2 cells to 4 cells in series.

Key Specifications

Part Number	MP2650
Function	I2C-Controlled 5A Buck or Boost Charger
Input Voltage	4 V to 21 V
Current Rating	5 A
Battery Cells	2s to 4s
Interface	I²C
Package	QFN-30
Ordering Codes	MP2650

Features

Buck or Boost Charger for Battery Packs with 2 Cells to 4 Cells in Series
All Switching MOSFETs are Integrated
NVDC Power Management with an Integrated Battery FET
4V to 21V Operating Input Voltage (VIN) Range
Up to 28V (20ns) Sustainable VIN
Configurable VIN Limit
Up to 5A Configurable Input Current (IIN) Limit (Up to 45W Total Power)
Up to 5A Configurable Charge Current
Configurable Battery Charge Voltage Regulation Up to 4.5V/Cell
System Power Indication via the PSYS Pin

Typical Application Circuit

Applications

Tablets and Notebooks
Bluetooth Speakers

Design Notes

Charge current accuracy depends on the sense resistor tolerance, so use a 1% or better part and keep its traces Kelvin-connected.
Wire the NTC input for JEITA profile control if the pack is charged over temperature.
Set the input current limit to what the adapter can actually deliver; a limit above the adapter rating causes the input rail to collapse mid-charge.
Termination current and recharge threshold dominate cycle life in shallow-cycling products.