Data Sheet

Thundercomm TurboX C40x SOM Datasheet
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Chapter 3. Electrical Characteristics
3.1. Absolute maximum ratings
The SOM needs to be designed in the operating conditions which is shown as below table beyond its absolute
maximum ratings may damage the device.
Table 3-1. Absolute rating condition
Parameter Min Max Units
Input power voltage
Voltage on any input or output pin -0.5 VPH_PWR+0.5 V
VPH_PWR -0.5 6.0 V
3.2. Operating conditions
The SOM needs to be designed in the operating conditions which is shown as in the table below.
Table 3-2. Operating conditions
Parameters Min Typical Max Units
Input power voltage
VPH_PWR +3.50 3.8 +5.0 V
Supply voltage, digital I/O +1.75 - +1.85 V
VPH_PWR 0.8 A
Thermal conditions
Operating temperature -20 25 70 °C
Storage temperature -20 - 70 °C
 NOTE: The min and max operating temperatures specified in the above table shall not exceed those of relevant
IC (see Table 3-3).
Table 3-3. IC temperature
Chipset Thermal Condition (min, °C) Thermal Condition (max, °C)
QCS40X Ta=-25 Tj=105
PMS405 Tj=-40 Tj=150
WCN3999 Tc=-30 Tc=85
eMCP/DDR/eMMC Ta=-25 Ta=85
 NOTE:
 Ta: a=ambient, temperature of the working environment.
 Tc: c=case, surface temperature, which can be simply understood as ambient temperature + CPU temperature
rise. Generally speaking, Tc is slightly higher than the ambient temperature.
 Tj: j=junction, junction temperature, which can be simply understood as the chip internal temperature.
nicholas.wang_thundercomm.com
2022-07-21 2:34:47 AM CST