MP2650
I2C-Controlled 5A Buck or Boost Charger
with NVDC Power Management and USB OTG
for 2-Cell to 4-Cell Battery Pack Applications
DESCRIPTION
FEATURES
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. All power MOSFETs are
integrated to provide a compact system solution
size.
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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
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4V to 21V Operating Input Voltage (VIN)
Range
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Up to 28V (20ns) Sustainable VIN
Configurable VIN Limit
The IC can accept a wide input voltage (VIN)
range for charging, with a 21V maximum. The
device has two operating modes during the
charging process: boost charging mode and
buck charging mode, depending on VIN and the
cell count.
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
IIN and Battery Current Monitoring via the
IAM and IBM Pins
Input Over-Voltage Protection (OVP),
Battery Temperature Protection, Battery
OVP, System OVP
Configurable Safety Charge Timer
Thermal Regulation and Thermal Shutdown
600kHz, 800kHz, 1MHz, or 1.25MHz
Configurable Switching Frequency (fSW)
Input Power Source Status Indication Pin
I2C Interface to Support Flexible Parameter
Control
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With the I2C interface, the MP2650 can be
flexibly configured to set the parameters in both
charging mode and OTG mode. Parameters
include the input current (IIN) limit, VIN limit,
charging current, battery charge voltage
regulation, and safety charge timer. It can also
provide the operation statuses through status
and fault registers.
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To guarantee safe operation, the IC limits the
die temperature to a preset value of 120°C.
Other safety features include input over-voltage
protection (OVP), battery OVP, system OVP,
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thermal
shutdown,
battery
temperature
protection, and a configured timer to prevent
prolonged charging of a dead battery.
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Comprehensive Fault and Status Reporting
in Register
To comply with IMVP8 specifications, the IC
provides three analog output pins for system
power (PSYS), input current (IAM), and battery
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Up to 5V/3A USB On-The-Go (OTG)
Configurable OTG Output Current (IOUT
Limit
Short-Circuit Protection (SCP) in OTG Mode
Available in a QFN-30 (4mmx5mm)
Package
)
current (IBM). It also has a processor hot
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indication pin (PROCHOT) for system power
control.
NVDC power path management regulates the
system voltage within a narrow DC range to
provide an optimized system bus voltage for the
rails at the system bus. With this feature, the
system can continue operating even when the
battery is completely depleted or removed.
APPLICATIONS
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Tablets and Notebooks
Bluetooth Speakers
Portable Gimbals
All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive.
For MPS green status, please visit the MPS website under Quality
Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are
trademarks of Monolithic Power Systems, Inc. or its subsidiaries.
The MP2650 is available in a QFN-30
(4mmx5mm) package.
MP2650 Rev. 1.0
4/22/2022
MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2022 MPS. All Rights Reserved.
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