EV2637-R-00A
2.5A Single Cell Switch Mode Battery Charger
with Power Path Management (PPM)
and 2.4A Boost Current with Trickle Timer
EV2637-R-00A Rev. 1.1
www.MonolithicPower.com
1
11/13/2017
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
Preliminary Specifications Subject to Change
© 2017 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The EV2637-R-00A is the evaluation board
designed to demonstrate the capabilities of
MPS’ MP2637, a highly-integrated, flexible
switch-mode battery charge management and
system power path management device for a
single-cell Li-ion and Li-Polymer battery used in
a wide range of portable applications.
EV2637 uses two operating modes—charge
mode and boost mode—to allow management
of system and battery power based on the state
of the input.
When input power is present, the board
charges a single-cell battery with a
programmable charge current of up to 2.5A.
In the absence of an input source, the board
switches to boost mode through the MODE pin
to power the SYS pins from the battery with a
current of up to 2.1A.
The evaluation board provides full-operating-
status indicators to distinguish charge mode
from boost mode.
To guarantee safe operation, the EV2637 has
input-over-voltage protection, battery over-
voltage protection, thermal shutdown, battery-
temperature monitoring, and a programmable
timer to prevent prolonged charging of a dead
battery.
ELECTRICAL SPECIFICATION
Parameter Symbol
Value
Units
Charge Mode
Input Voltage Range
V
IN
4.5 – 6
V
Charge-Full Voltage V
BATT Full
4.2 / 4.35
V
Charge Current
I
CHG
2.5 A
Input Current Limit
I
IN LIM
2.7 A
Boost Mode
Battery Voltage
V
BATT
3-4.5 V
SYS Voltage
Regulation
V
SYS
5 V
SYS Output Current
Limit
I
SYS
2.2 A
FEATURES
4.5V-to-6V Operating Input Voltage Range
Power Management Function Integrated
Input-Current-Limit and Input –Voltage -
Regulation
Up to 2.5A Programmable Charge Current
Selectable 4.35V / 4.2V Charge Voltage
with 0.5% Accuracy
Battery Temperature Monitoring
Full Operation Indicators
Programmable Timer-Back-Up Protection
Battery-Reverse-Leakage
Blocking
Reverse-Boost-Operation for Powering
System
Up to 93% 5V Boost Mode Efficiency @
2.1A with BATT=4.35V
Up to 2.1A Programmable Output Current
Limit in Boost Mode
APPLICATIONS
Sub-battery Applications
Power-bank Applications for Smart-Phone,
Tablet and Other Portable Devices
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Products, Quality Assurance page.
“MPS” and “The Future of Analog IC Technology”, are Registered Trademarks
of Monolithic Power Systems, Inc.
