MPS EV2637A-R-00A Manual

DESCRIPTION

The EV2637A-R-00A is the evaluation board
designed to demonstrate the capabilities of
MPS' MP2637A, 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.
EV2637A 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
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 EV2637A has
input-over-voltage protection,
voltage protection, thermal shutdown, battery-
temperature monitoring, and a programmable
timer to prevent prolonged charging of a dead
battery.

ELECTRICAL SPECIFICATION

Parameter Symbol
Charge Mode
Input Voltage Range
Charge-Full Voltage V
Charge Current
Input Current Limit
Boost Mode
Battery Voltage
SYS Voltage
Regulation
SYS Output Current
Limit
EV2637A-R-00A Rev. 1.0
10/11/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
battery with
battery over-
Value Units
4.5 – 6
V V
IN
4.055 /4.2 V
BATT_Full
I 2.5 A
CHG
I 2.7 A
IN_LIM
V 3-4.5 V
BATT
V
SYS
5 V
I
SYS
2.2 A
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© 2019 MPS. All Rights Reserved.
2.5A Single Cell Switch Mode Battery Charger
with Power Path Management (PPM)
and 2.4A Boost Current with Trickle Timer

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 4.055V / 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
a

Up to 93% 5V Boost Mode Efficiency @
2.1A with BATT=4.2V

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.
EV2637A-R-00A
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