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VL6180X bảng dữ liệu(PDF) 26 Page - STMicroelectronics

tên linh kiện VL6180X
Giải thích chi tiết về linh kiện  Proximity and ambient light sensing (ALS) module
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VL6180X bảng dữ liệu(HTML) 26 Page - STMicroelectronics

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Functional description
VL6180X
26/79
DocID026171 Rev 6
2.11.3
Current distribution
Table 12. shows how current consumption is distributed between the two supplies in ranging
mode. AVDD_VCSEL supplies the VCSEL current and AVDD supplies all other functions.
Note:
The VCSEL driver is pulsed at 100 MHz with a 33% duty cycle (see Figure 15.) so average
current consumption on AVDD_VCSEL is one third of the peak.
Figure 15. VCSEL pulse duty cycle
Table 12. Current consumption on AVDD and AVDD_VCSEL
Power supply(1)
1.
Normally, both supplies will be driven from a common source giving a peak instantaneous current demand
of 38 mA.
Current
Note
AVDD
14 mA
Average during active ranging
AVDD_VCSEL
8 mA(2)
2.
Peak emitter current during ranging is 24 mA.
Average during active ranging (33% duty cycle).
33% duty cycle
10 ns
24 mA peak current
8 mA average current



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