SFH7779 datasheet(13/42 Pages) AMSCO

13 / 42 page

SFH 7779

DATASHEET

13 | Version 1.7 | 2023-05-24

Characteristics

TA = 25 °C

Parameter

Symbol

Values

Ambient Light Sensor: ALS_VIS and ALS_ IR diode

Wavelength of max. sensitivity for ALS VIS

λ Smax

typ.

560 nm

Spectral range of sensitivity (10 % of Smax)

of ALS VIS

λ S10%

min.

max.

450 nm

950 nm

Wavelength of max. sensitivity of ALS IR

λ Smax

typ.

880 nm

Spectral range of sensitivity (10 % of Smax)

of ALS IR

λ S10%

min.

max.

830 nm

1050 nm

Illuminance measurement range is programmable

the maximum ALS sensitivity can be reached with the ALS high

sensitivity mode → 400ms ALS integration time

MODE_CONTROL (0x41h) = 0Ah or 0Bh

min.

max.

0.0022 lx

73000 lx

ALS VIS sensor output

1000lx; white LED; VDD = 2.5V

MODE_CONTROL (0x41h) = 08h

ALS_PS_CONTROL (0x42h): Gain X1

ALSVIS_out

min.

typ.

max.

750 counts

900 counts

1080 counts

ALS IR sensor output

324µW/cm2; IRED 850 nm; VDD = 2.5V)

(MODE_CONTROL (0x41h) = 08h

ALS_PS_CONTROL (0x42h): Gain = X1

ALSIR_out

min.

typ.

max.

460 counts

550 counts

660 counts

ALS_VIS sensor output at darkness

MODE_CONTROL (0x41h) 08h

ALS_PS_CONTROL (0x42h): Gain = X1

ALSVIS_out

min.

typ.

max.

0 counts

2 counts

ALS_IR sensor output at darkness

MODE_CONTROL (0x41h) = 08h

ALS_PS_CONTROL (0x42h): Gain = X1

ALSIR_out

min.

typ.

max.

0 counts

2 counts

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