Huawei MU509 Series Development Kit Manual page 34

HUAWEI 30 mm x 30 mm LGA Module
Development Kit Guide
VBAT
Step 3 Set the voltage of the external power supply to be 3.8 V. The current range is not
limited.
Step 4 Power on the LGA module and record the current for different working status.
When you finish a test, please shut down the module and cut off the power supply. Before
going on another test, please make sure the shutting down time is more than 10 seconds.
Issue 05 (2016-12-12)
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Interface Description
GND
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