Datasheet

www.sensirion.com Version 0.9 – August 2017 5/15
Figure 7 Typical application circuit (for better clarity in the image, the positioning of the pins does
not reflect the positions on the real sensor).
The electrical specifications of the SGP30 are shown in Table 3. The power supply pins must be decoupled with a 100 nF
capacitor that shall be placed as close as possible to pin VDD – see Figure 7. The required decoupling depends on the power
supply network connected to the sensor. We also recommend VDD and VDDH pins to be shorted
7
.
SCL is used to synchronize the communication between the microcontroller and the sensor. The SDA pin is used to transfer
data to and from the sensor. For safe communication, the timing specifications defined in the I
2
C manual
8
must be met. Both
SCL and SDA lines are open-drain I/Os with diodes to VDD and VSS. They should be connected to external pull-up resistors.
To avoid signal contention, the microcontroller must only drive SDA and SCL low. The external pull-up resistors
(e.g. R
p
= 10 kΩ) are required to pull the signal high. For dimensioning resistor sizes please take bus capacity and
communication frequency into account (see for example Section 7.1 of NXPs I
2
C Manual for more details
8
). It should be noted
that pull-up resistors may be included in I/O circuits of microcontrollers.
The die pad or center pad is electrically connected to GND. Hence, electrical considerations do not impose constraints on the
wiring of the die pad. However, for mechanical stability it is recommended to solder the center pad to the PCB.
4 Absolute Minimum and Maximum Ratings
Stress levels beyond those listed in Table 5 may cause permanent damage to the device. These are stress ratings only and
functional operation of the device at these conditions cannot be guaranteed. Exposure to the absolute maximum rating
conditions for extended periods may affect the reliability of the device.
Parameter
Rating
Supply voltage V
DD
-0.3 V to +2.16 V
Supply voltage V
DDH
-0.3 V to +2.16 V
Storage temperature range
-40 to +125°C
Operating temperature range
-40 to +85°C
Humidity Range
10% - 95% (non-condensing)
ESD HBM
2 kV
ESD CDM
500 V
Latch up, JESD78 Class II, 125
°
C
100 mA
Table 5 Absolute minimum and maximum ratings.
Please contact Sensirion for storage, handling and assembly instructions.
7
If VDD and VDDH are not shorted, it is required that VDD is always powered when VDDH is powered. Otherwise, the sensor might be
damaged.
8
http://www.nxp.com/documents/user_manual/UM10204.pdf