MP2615A
2 A, 1- or 2- Cell Li-Ion Battery Charger
in 3mm x 3mm Package
The Future of Analog IC Technology
DESCRIPTION
FEATURES
The MP2615A is a high-efficiency, switch mode
battery charger suitable for 1- or 2- cell lithium-
ion or lithium-polymer applications. The
MP2615A is capable of delivering 2 A of charge
current programmable via an accurate sense
resistor over the entire input range.
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4.75 V to 18 V Operating Input Voltage
Up to 99% Duty Cycle Operation
Up to 2 A Programmable Charging Current
±0.75% Full Battery Voltage Accuracy
4.2 V/Cell and 4.35 V/Cell Selection for Full
Battery Voltage
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Fully Integrated Power Switches
Internal Loop Compensation
No External Reverse-Blocking Diode
Required
The MP2615A regulates the charge current and
full battery voltage using two control loops to
achieve high-accuracy constant current (CC)
charge and constant voltage (CV) charge.
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Preconditioning for Fully Depleted Battery
Charging Operation Indicator
Programmable Safety Timer
Thermal Shutdown Protection
Cycle-by-Cycle Over-Current Protection
Battery Temperature Monitor and Protection
Constant-off-time
(COT)
control
allows
operation at up to 99% duty cycle when the
battery voltage is close to the input voltage,
ensuring the charge current always remains at
a relatively high level.
The battery temperature and charging status
are always monitored during each charging
cycle. Two status monitor output pins are
provided to indicate the battery charging status
and input power status. Also, the MP2615A
features internal reverse-blocking protection.
APPLICATIONS
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Smart Phones
Portable Hand-Held Solutions
Portable Media Players
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” and “The Future of Analog IC Technology” are registered
trademarks of Monolithic Power Systems, Inc.
The MP2615A is available in a 3mm × 3mm
16-pin QFN package.
Analog digital adaptive modulation (ADAM) and advanced asynchronous
modulation (AAM) are trademarks of Monolithic Power Systems, Inc.
TYPICAL APPLICATION
Efficiency
100
95
90
85
VIN=5V,1CELL,4.35V/CELL
80
75
70
VIN=18V,2CELL,4.2V/CELL
65
60
0
0.5
1
1.5
(A)
2
2.5
I
BATT
MP2615A Rev. 1.0
4/22/2015
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
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