MP2639B
1S Cell Li-ion or Li-polymer Switching Charger
Compatible with Wide Input Range and
Integrated Programmable OTG
FEATURES
DESCRIPTION
•
•
4.5V to 16V Input Voltage Range
Integrated Both Input-Current-Based and
Input-Voltage-Based Power Management
Functions
The MP2639B is a highly integrated, flexible
switch-mode battery charging management
device for a single-cell Li-ion and Li-Polymer
battery used in a wide range of portable
applications.
•
•
•
Up to 5A Programmable Charge Current
4.35V Charge Voltage with 0.5% Accuracy
Up to 3A Programmable Boost Output
Current
The MP2639B works in three modes: charge
mode, discharge mode, and sleep mode. (See
Table 1)
•
•
Up to 16V Programmable Boost Output
Voltage
Negative Temperature Coefficient Pin for
Temperature Monitoring
When the input power supply is available, the
MP2639B operates as a switching charger to
charge a 1S battery from a wide input power
range of 5V to 16V, which can cover a USB PD
voltage level. The MP2639B automatically
detects the battery voltage and charges the
battery in three phases: pre-charge, constant
charge, and constant voltage charge. Other
features include charge termination and auto-
recharge.
•
•
•
•
•
Programmable Timer Back-Up Protection
Discharge Mode Load Trace Compensation
Thermal Regulation and Thermal Shutdown
Internal Battery Reverse Leakage Blocking
Integrated Short-Circuit Protection for Boost
Mode
•
•
4 LEDs Battery Level and Status Indication
4mmx4mm QFN-26 Package
When the input is absent, the MP2639B can
provide a wide boost voltage to IN by adjusting
the feedback voltage at FB. When working with
the PD controller, the MP2639B can support a
USB PD standard output voltage level.
APPLICATIONS
•
•
•
Power Station Applications
USB PD Power Banks
Mobile Internet Devices
To guarantee safe operation, the MP2639B
limits the die temperature to a preset value of
120ºC. Other safety features include input over-
All MPS parts are lead-free, halogen free, and adhere to the RoHS
directive. For MPS green status, please visit MPS website under Quality
Assurance.
“MPS” and “The Future of Analog IC Technology” are Registered
Trademarks of Monolithic Power Systems, Inc.
voltage
protection,
protection,
thermal
battery
shutdown,
over-voltage
battery
ADAM (Analog Digital Adaptive Modulation), AAM (….) are Trademarks of
Monolithic Power Systems, Inc.
temperature monitoring, and a programmable
timer to prevent prolonged charging of a dead
battery.
MP2639B Rev. 1.01
11/14/2019
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2019 MPS. All Rights Reserved.
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