CCS801 datasheet(3/7 Pages) AMSCO

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CC-000015-DS revision: 11

Datasheet for CCS801

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Website: www.ccmoss.com

Telephone: +44 1223 395 551

Date Issued: 26 May 2016

Parameters

Conditions

Min

Typ

Max

Units

Maximum heater voltage (VH)

1.8

Recommended ambient operating

temperature

-5

Recommended ambient operating

humidity

Non-Condensing

%RH

Storage temperature range

-40

125

Recommended heater voltage (VH)

1.4

Average power consumption (PAV)

Pulsed heating mode

0.9

Peak power consumption (PDC)

Constant power mode VH =

1.4V

Heater resistance (RH)

VH = 1.4V @ 50% RH

Ω

Sensor resistance in clean air (Ra)

VH = 1.4V @ 50% RH

0.2

1.4

MΩ

Lifetime

VH = 1.4V

years

Notes:

When VH is produced by PWM of a VDD above 1.8V the duty cycle (%) must not exceed 1.8V

2 / V

Based on a sensor measurement duty cycle of 2.5%, heater ON for 1.5secs (0.5s @ 1.6V, 1s @ 1.4V)

and then heater OFF for 58.5s (0V).

Sensitivity is defined as the sensor’s resistance in air (Ra) divided by the sensor’s resistance at a specific gas

concentration level at 50% relative humidity and 25°C ambient temperature (Rg). The following chart shows

the sensitivity of CCS801 to CO, Ethanol and Toluene (as an example VOC gas) in constant power mode with a

heater voltage (VH) of 1.4V.

Operating a new sensor in constant power mode at VH in the first 24 hours is recommended to ensure sensor

performance is stabilised.

Electrical characteristics

Sensor Performance

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