MEZS7-2SBOOST CHARGER – MP2639C SOLUTION MODULE
MEZS7-2SBoostCharger Rev. 1.1
www.MonolithicPower.com
4
8/20/2020
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© 2020 MPS. All Rights Reserved.
EQUIPMENT REQUIREMENTS
Evaluation requires the following equipment:
1. A USB cable with an adapter or any USB port with load capability (for the charge input) can be used
for the solution module. If a certain operation state cannot be tested, an external wire can be added
to connect a power source with 6V/3A capability.
2. A battery simulator or 2-cell battery pack. The battery simulator
’s output rating should be greater than
9V/7.0A. When using a real battery pack, review all precautions i
n the battery manufacturer’s
datasheet and en
sure the charger’s setting does not exceed the battery’s absolute maximum
specifications.
3. An oscilloscope with a single voltage probe and a single current probe.
4. A multi-meter.
Charge Function
1. Attach the positive (VH) and negative ends (PGND) of the board
to the “+” and “-” terminals of the
battery or battery simulator, respectively. If using a battery simulator, preset the voltage to 7.6V
(typical value for 2-cell) first.
2. Attach the USB cable to the USB1 port.
U1
MAIN CIRCUIT
VH
AGND
VCC
NTC
MID
IB
CHG
ACOK
U
S
B
1
MPS
2-Cell Battery
Pack or
Simulator
Adapter,
USB Port
U2
CHG
ACOK
GND
MEZS7-2SBoostCharger
Figure 1: Set-Up for Charge Mode from USB Cable
