SFH7779 datasheet(10/42 Pages) AMSCO

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SFH 7779

DATASHEET

10 | Version 1.7 | 2023-05-24

Characteristics

TA = 25 °C

Parameter

Symbol

Values

Conditions for OFF mode

VDD,off

typ.

0.5 V

Current consumption in OFF mode

VDD < 0.5 V

IDD,off

typ.

0 µA

STAND-BY mode current consumption

Mode_control(41h) = 0x00; VDD = 2.5 V

IDD,stby

typ.

max.

0.8 µA

1.5 µA

Proximity Sensor (PS)

LED centroid wavelength (ILED = 100mA)

λcentroid

typ.

940 nm

LED Spectral bandwidth (ILED = 100mA)

Δλ

typ.

30 nm

Temperature coefficient of optical power of LED

typ.

-0.5 %/K

ILED ON time for one measurement

tLED ON

min.

typ.

max.

80 µs

200 µs

300 µs

LED current, programmable

VLED > 2.3V for ILED < 100mA

VLED > 3.0V for ILED > 100mA

ILED

min.

max.

25 mA

200 mA

Accuracy of LED current source

ALS_PS_CONTROL: LED Current (00b

ILED

min.

typ.

max.

22.5 mA

25 mA

27.5 mA

Mean current consumption in PS mode

current consumption of the pulsed LED is not included;

MODE_CONTROL(0x41h) = 0x03h;

all other registers are default; VDD = 2.5 V

IDD

typ.

max.

60 µA

150 µA

Mean current consumption in PS mode during the 200 µs LED pulse (tLED

)

current consumption of the pulsed LED is not included

IDD

typ.

max.

6.5 mA

8.5 mA

Typical detection distance

KODAK grey card 100x130mm2, R = 90%

ILED = 200mA, VDD = 2.5V, EV = 0lx;

high threshold = 11 counts

hon

typ.

10 cm

Typical none detection distance

KODAK grey card 100x130mm2, R = 90%

ILED = 200mA, VDD = 2.5V, EV = 0lx;

high threshold = 8 counts

hoff

typ.

12 cm

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