MP2615A Datasheet: 1- or 2- Cell Li-Ion Battery Charger





MP2615A Datasheet PDF Download

Part Number MP2615A
Description 1- or 2- Cell Li-Ion Battery Charger
Manufacture MPS
Total Page 21 Pages
PDF Download Download MP2615A Datasheet PDF

Features: The Future of Analog IC Technology MP26 15A 2 A, 1- or 2- Cell Li-Ion Battery C harger in 3mm x 3mm Package DESCRIPTIO N The MP2615A is a high-efficiency, swi tch mode battery charger suitable for 1 - or 2- cell lithiumion or lithium-poly mer applications. The MP2615A is capabl e of delivering 2 A of charge current p rogrammable via an accurate sense resis tor over the entire input range. The MP 2615A regulates the charge current and full battery voltage using two control loops to achieve high-accuracy constant current (CC) charge and constant volta ge (CV) charge. Constant-off-time (COT) control allows operation at up to 99% duty cycle when the battery voltage is close to the input voltage, ensuring th e charge current always remains at a re latively high level. The battery temper ature and charging status are always mo nitored during each charging cycle. Two status monitor output pins are provide d to indicate the battery charging stat us and input power status. Also, the MP2615A features internal .

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The Future of Analog IC Technology
MP2615A
2 A, 1- or 2- Cell Li-Ion Battery Charger
in 3mm x 3mm Package
DESCRIPTION
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.
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.
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.
The MP2615A is available in a 3mm × 3mm
16-pin QFN package.
FEATURES
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
Fully Integrated Power Switches
Internal Loop Compensation
No External Reverse-Blocking Diode
Required
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
APPLICATIONS
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.
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 2
IBATT(A)
2.5
MP2615A Rev. 1.0
www.MonolithicPower.com
4/22/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
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