MP2637A Datasheet: Switch Mode Battery Charger





MP2637A Switch Mode Battery Charger Datasheet

Part Number MP2637A
Description Switch Mode Battery Charger
Manufacture MPS
Total Page 30 Pages
PDF Download Download MP2637A Datasheet PDF

Features: MP2637A 2.5A, Single-Cell, Switch Mode B attery Charger with Power Path Manageme nt (PPM) and 2.4A System Boost Current DESCRIPTION The MP2637A is a highly-in tegrated, flexible, switch-mode battery charger with system power path managem ent designed for single-cell Liion or L i-polymer batteries for use in a wide r ange of applications. The MP2637A can o perate in both charge mode and boost mo de to allow for full system and battery power management. When the input power is present, the MP2637A operates in ch arge mode. The MP2637A detects the batt ery voltage automatically and charges t he battery in three phases: trickle cur rent, constant current, and constant vo ltage. Other features include charge te rmination and auto-recharge. The MP2637 A also integrates both input current li mit and input voltage regulation to man age the input power and meet the system power demand priority. In the absence of an input source, the MP2637A switche s to boost mode through MODE to power the SYS pins from the bat.

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MP2637A
2.5A, Single-Cell, Switch Mode Battery Charger
with Power Path Management (PPM)
and 2.4A System Boost Current
DESCRIPTION
The MP2637A is a highly-integrated, flexible,
switch-mode battery charger with system power
path management designed for single-cell Li-
ion or Li-polymer batteries for use in a wide
range of applications.
The MP2637A can operate in both charge
mode and boost mode to allow for full system
and battery power management.
When the input power is present, the MP2637A
operates in charge mode. The MP2637A
detects the battery voltage automatically and
charges the battery in three phases: trickle
current, constant current, and constant voltage.
Other features include charge termination and
auto-recharge. The MP2637A also integrates
both input current limit and input voltage
regulation to manage the input power and meet
the system power demand priority.
In the absence of an input source, the
MP2637A switches to boost mode through
MODE to power the SYS pins from the battery.
The OLIM pin programs the output current limit
in boost mode. The MP2637A also allows for
output short-circuit protection (SCP) to
disconnect the battery completely from the load
in the event of a short-circuit fault. Normal
operation resumes once the short-circuit fault is
removed. The MP2637A provides full operating
status indication to distinguish charge mode
from boost mode.
To guarantee safe operation, the MP2637A
limits the die temperature to a preset value of
120°C. Other safety features include input over-
voltage protection (OVP), battery over-voltage
protection (OVP), thermal shutdown, battery
temperature monitoring, and a programmable
timer to prevent prolonged charging of a dead
battery.
The MP2637A is available in a QFN-24
(4mmx4mm) package.
FEATURES
Up to 16V Sustainable Input Voltage
4.5V to 6V Operating Input Voltage Range
Power Management Function, Integrated
Input Current Limit, Input Voltage
Regulation
Up to 2.5A Programmable Charge Current
Trickle-Charge Function
Selectable 4.20V/4.055V Charge Voltage
with 0.5% Accuracy
Negative Temperature Coefficient Pin (NTC)
for Battery Temperature Monitoring
Programmable Timer Back-Up Protection
Thermal Regulation and Thermal Shutdown
Internal Battery Reverse Leakage Blocking
Integrated Over-Voltage Protection (OVP)
and Over-Current Protection (OCP) for
Pass-Through Path
Reverse Boost Operation Mode for System
Power
Up to 2.4A Programmable Output Current
Limit for Boost Mode
Integrated Short-Circuit Protection (SCP)
and Output Over-Voltage Protection (OVP)
for Boost Mode
Available in a QFN-24 (4mmx4mm)
Package
APPLICATIONS
Sub-Battery Applications
Power-Bank Applications for Smartphones,
Tablet, and Other Portable Devices
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.
MP2637A Rev. 1.0
www.MonolithicPower.com
11/29/2017
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
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