Datasheet

www.sensirion.com
Version 1.0 – July 2020 – D1
7/19
Parameter
Rating
Supply voltage V
DD
−0.3 to +3.6 V
Supply voltage V
DDH
−0.3 to +3.6 V
Short-term storage temperature range
12
−40 to +70 °C
Operating temperature range
−20 to +55 °C
Short-term storage humidity range
12
0 to 80 % (non-condensing)
Operating humidity range
0 to 90 % (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.
2.5 Interface Specifications
The SGP40 comes in a 6-pin DFN package, see Table 6. Figure 5 shows a typical application circuit. The V
DD
pin must be
decoupled with an RC element. The required decoupling for V
DDH
depends on the power supply network connected to the sensor,
a capacitor of 1 F is recommended. V
DD
and V
DDH
must be connected to one single supply V
DD
. The external pull-up resistors
(e.g., R
p
= 10 k) are required to pull the SDA and SCL signal lines high. For dimensioning resistor sizes please take bus
capacity and communication frequency into account (see section 7.1 of NXPs I
2
C Manual for more details, see footnote 9 on
page 5). 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 die pad to the PCB.
Pin
Name
Comments
1
V
DD
Supply voltage
2
V
SS
Ground
3
SDA
Serial data, bidirectional
4
n/a
Connect to ground (no electrical function)
5
V
DDH
Supply voltage, hotplate
6
SCL
Serial clock, bidirectional
Table 6 Pin assignment (transparent top view). Dashed lines are only visible from the bottom.
12
Short-term storage refers to temporary conditions during, e.g., transport.