MEZS7-1SSAPOWERBANK – MP2632
SOLUTION MODULE
MEZS7-1SSAPowerBank Rev. 1.0
www.MonolithicPower.com
4
6/23/2020
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 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 a single-cell battery pack. The battery simulator
’s output rating should be
greater than 4.5V/7.0A. When using a real battery pack, review all precautions in the battery
manufacturer’s datasheet and ensure the charger’s setting do not exceed the battery’s absolute
maximum specifications.
3. An e-load or real smartphone. The e-load capability should be greater than 5V/3A.
4. An oscilloscope with a single voltage probe and a single current probe.
5. An multi-meter.
Charge Function
1.
Attach the positive and negative ends of the battery to the “+” and “-” terminals, respectively. If
using a battery simulator, preset the voltage to 3.8V (typical value) first.
2. Use the USB cable and adapter or any USB port with load capability.
Single-Cell Battery
Pack or Simulator
SW1
EV2632-R-00B
-
+
U1
LED1
LED2
LED3
LED4
LEDTC
MPS
USB1
USB2
Adapter, USB Port, or
DC Power Supply
Figure 1: Set-Up for Charge Mode
3. Connect the adapter or USB port to the solution module through USB2 to start the charge. Use the
oscilloscope to verify a 3A charge current is being delivered to the battery. The charge current can
be a different value than 3A under the following conditions:
a. The charge current is limited by the input current limit.
The IC features input source detection to decide the input current limit according to the input
source (USB or adapter). The IC sets the input current limit using Table 2 once the DP1/DM1
detection is complete.
MEZS7-1SSAPowerBank