MEZS7-1SSAPowerBank
All-In-One 3A Battery Charger
with 3A Boost Current Solution Module
MEZS7-1SSAPowerBank Rev. 1.0
www.MonolithicPower.com
1
6/23/2020
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© 2020 MPS. All Rights Reserved.
DESCRIPTION
The MEZS7-1SSAPowerBank is a complete
power bank solution module using the MP2632,
which includes a buck charger with BC1.2
detection, integrated boost with two separate
outputs, and a 4-LED indicator for battery state
of charge.
The solution module uses a form-fitting board
and supports two operating modes
— charge
mode and boost mode
— to allow management
of the system and battery power based on the
state of the input.
When a 5V USB input power is present, the
board charges a single-cell battery with a max
charge current of 3A. In the absence of an input
source, the solution module switches to boost
mode through the PB pin to power the USB
type-A output from the battery with up to 3A of
current.
The solution module provides four LED drivers
to achieve the voltage based fuel gauge
indication and distinguish charge mode from
boost mode.
To guarantee safe operation, the solution
module offers input over-voltage protection,
battery
over-voltage
protection,
thermal
shutdown, battery temperature monitoring, and
a timer to prevent prolonged charging of a dead
battery.
ELECTRICAL SPECIFICATIONS
Parameter
Symbol
Value
Units
Charge Mode
Input voltage range
V
IN
4.55 to 6
V
Charge-full voltage
V
BATT_FULL
4.2, 4.35,
4.45
V
Charge current
I
CHG
3
A
Input current limit
I
IN_LIM
2.7
A
Boost Mode
Battery voltage
V
BATT
3 to 4.45
V
SYS voltage
regulation
V
SYS
5
V
SYS output current
limit
I
SYS
3
A
FEATURES
4.55V to 6V Operating Input Voltage Range
Power Management Function Includes
Integrated Input Current Limit and Input
Voltage Regulation
Up to 3A Charge Current
Selectable 4.45V, 4.35V, or 4.2V Charge
Voltage with 0.5% Accuracy
Battery Temperature Monitoring
4 LED Drivers for Battery Fuel Gauge
Indication
Timer Backup Protection
Battery Reverse Leakage Blocking
Reverse Boost Operation for Powering the
System
Up to 94% 5V Boost Mode Efficiency at 3A
with BATT = 4.5V
Up to 3A Output Current Limit in Boost
Mode
APPLICATIONS
Battery Backup Applications
Power Bank Applications for Smartphones,
Tablets, 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.
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of Monolithic Power Systems, Inc. or its subsidiaries.