Telit Wireless Solutions HE910 User Manual

HE910 Hardware User Guide
1VV0300925 Rev. 32 Page 41 of 111 2019-11-25
5. POWER SUPPLY
The power supply circuitry and board layout are a very important part in the full product
design and they strongly reflect on the product overall performances, hence read carefully
the requirements and the guidelines that will follow for a proper design.
Power Supply Requirements
The external power supply must be connected to VBATT & VBATT_PA signals and must
fulfil the following requirements:
POWER SUPPLY
Nominal Supply Voltage
3.8 V
Normal Operating Voltage
Range
3.40 V÷ 4.20 V
Extended Operating
Voltage Range
3.10 V÷ 4.50 V
NOTE:
The Operating Voltage Range MUST never be exceeded; care must
be taken when designing the application’s power supply section to
avoid having an excessive voltage drop.
If the voltage drop is exceeding the limits it could cause a Power Off
of the module.
The Power supply must be higher than 3.22 V to power on the
module
NOTE:
Overshoot voltage (regarding MAX Extended Operating Voltage) and
drop in voltage (regarding MIN Extended Operating Voltage) MUST
never be exceeded;
The “Extended Operating Voltage Range” can be used only with
completely assumption and application of the HW User guide
suggestions

Telit Wireless Solutions HE910 Specifications

General

Brand	Telit Wireless Solutions
Model	HE910
Category	Control Unit
Language	English