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SGP40-D-R4 数据表(PDF) 7 Page - Sensirion AG Switzerland |
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SGP40-D-R4 数据表(HTML) 7 Page - Sensirion AG Switzerland |
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7 / 19 page ![]() www.sensirion.com Version 1.0 – July 2020 – D1 7/19 Parameter Rating Supply voltage VDD −0.3 to +3.6 V Supply voltage VDDH −0.3 to +3.6 V Short-term storage temperature range12 −40 to +70 °C Operating temperature range −20 to +55 °C Short-term storage humidity range12 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 VDD pin must be decoupled with an RC element. The required decoupling for VDDH depends on the power supply network connected to the sensor, a capacitor of 1 F is recommended. VDD and VDDH must be connected to one single supply VDD. The external pull-up resistors (e.g., Rp = 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 I2C 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 VDD Supply voltage 2 VSS Ground 3 SDA Serial data, bidirectional 4 n/a Connect to ground (no electrical function) 5 VDDH 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. |
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