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AS7421

Electrical Characteristics

Datasheet

• PUBLIC

DS000667

• v2-00 • 2022-Oct-13

│ 9

Electrical Characteristics

All limits are guaranteed. The parameters with Min and Max values are guaranteed with production

tests or SQC (Statistical Quality Control) methods. All voltages with respect to GND/PGND. Device

parameters are guaranteed at VDD=3.3 V and TA=25 °C unless otherwise noted.

Figure 6:

Electrical Characteristics of AS7421

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VDD

Supply voltage

3.3

3.6

VLEDA

LED supply voltage

ILED = 75 mA

2.8

3.0(1)

fOSC

Oscillator frequency

MHz

Operating free-air

temperature

-30

°C

Operating junction

temperature

-30

°C

TOVTEMP

Overtemperature

shutdown

150

165

°C

Power Consumption

IDD

Supply current

VDD = 3.3 V; TA = 25°C

Active mode (2)

2.5

VDD = 3.3 V; TA = 25 °C

Idle mode (3)

400

µA

VDD = 3.3 V; TA = 25 °C

Sleep mode (4)

µA

Digital Pins

VIH

SCL, SDA input high

voltage

1.26

VIL

SCL, SDA input low

voltage

0.54

VOL

INT, SDA output low

voltage

6 mA sink current

0.4

Input pin

capacitance

Ileak

Leakage current into

SCL, SDA, INT,

GPIO pins

1.5

µA

LED Driver

ILED_ACCURACY

Absolute ILED

accuracy

ILED = 50 mA

TA = 25°C

-30

+30

VCOMP

Compliance voltage

of current sink

ILED = 75 mA

500

LED

Vf_LED1

Forward voltage

IF = 25 mA

2.0

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