MPS EV2690-R-00A Quick Start Manual

The Future of Analog IC Technology
DESCRIPTION
The EV2690-R-00A is the evaluation board
designed to demonstrate the capabilities of
MPS' MP2690, a highly-integrated, flexible
switch-mode battery charge management for a
single-cell Li-ion and Li-Polymer battery used in
a wide range of applications.
EV2690 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 PB pin to
power the SYS pins from the battery with a
current of up to 2.1A.
The evaluation board provides 4-LED to
achieve the voltage based fuel gauge indication
and distinguish charge mode from boost mode.
To guarantee safe operation, the EV2690 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
V
Charge-Full Voltage
Charge Current
Input Current Limit
Boost Mode
Battery Voltage
SYS Voltage
Regulation
SYS Output Current
Limit
EV2690-R-00A Rev. 1.0
9/25/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
battery with
battery over-
Value Units
V 4.55 – 6 V
IN
4.2 / 4.35
BATT_Full
V
/ 4.45
I 2.5 A
CHG
I 2.7 A
IN_LIM
V 3-4.5 V
BATT
V
SYS
5 V
I
SYS
2.1 A
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© 2015 MPS. All Rights Reserved.
Evaluation Board of All-in-one 2.5A
Battery Charge and 2.1A Boost Discharge
FEATURES

4.55V-to-6V Operating Input Voltage Range

Power Management Function Integrated
Input-Current-Limit
Regulation

Up to 2.5A Programmable Charge Current

Selectable 4.45V / 4.35V / 4.2V Charge
Voltage with 0.5% Accuracy

Battery Temperature Monitoring

4-LED for battery fuel gauge indication

Programmable Timer Back-Up Protection

Battery-Reverse-Leakage Blocking

Reverse-Boost-Operation
a
System

Up to 94% 5V Boost Mode Efficiency @
2.1A with BATT=4.5V
 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, halogen free, and adhere to the RoHS
directive. For MPS green status, please visit MPS website under Quality
Assurance.
"MPS" and "The Future of Analog IC Technology" are Registered
Trademarks of Monolithic Power Systems, Inc.
EV2690-R-00A
and Input
for Powering
Voltage
1