SI1143 View Datasheet(PDF) - Silicon Laboratories
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SI1143 Datasheet PDF : 76 Pages
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Si1141/42/43
Table 2. Performance Characteristics1 (Continued)
Parameter
Symbol
Condition
Min Typ
Max
Unit
IDD Standby Mode
Isb
No ALS / PS Conversions
—
1.4
—
µA
No I2C Activity
VDD =3.3 V
IDD Actively Measuring Iactive Without LED influence, VDD = 3.3 V —
4.3
5.5
mA
Peak IDD while LED1,
LED2, or LED3 is
Actively Driven
VDD = 3.3 V
—
8
—
mA
LED Driver Saturation
Voltage2,3
Vdd = 1.71 to 3.6 V
PS_LEDn = 0001
PS_LEDn = 0010
PS_LEDn = 0011
PS_LEDn = 0100
PS_LEDn = 0101
PS_LEDn = 0110
PS_LEDn = 0111
PS_LEDn = 1000
PS_LEDn = 1010
PS_LEDn = 1010
PS_LEDn = 1011
PS_LEDn = 1100
PS_LEDn = 1101
PS_LEDn = 1110
PS_LEDn = 1111
mV
—
50
70
—
60
105
—
70
105
—
80
105
— 115
450
— 150
450
— 185
450
— 220
450
— 255
450
— 290
450
— 315
600
— 340
600
— 360
600
— 385
600
— 410
600
LED1, LED2, LED3
tPS
Pulse Width
LED1, LED2, LED3,
INT, SCL, SDA
Leakage Current
VDD = 3.3 V
— 25.6
30
µs
–1
—
1
µA
Notes:
1. Unless specifically stated in "Conditions", electrical data assumes ambient light levels < 1 klx.
2. Proximity-detection performance may be degraded, especially when there is high optical crosstalk, if the LED supply
and voltage drop allow the driver to saturate and current regulation is lost.
3. Guaranteed by design and characterization.
4. Represents the time during which the device is drawing a current equal to Iactive for power estimation purposes.
Assumes default settings.
Rev. 1.4
5
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