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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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VL6180 数据表(PDF) 27 Page - STMicroelectronics |
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VL6180 数据表(HTML) 27 Page - STMicroelectronics |
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27 / 73 page  DocID024986 Rev 14 27/73 VL6180 Functional description 69 2.14.3 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. Angle of divergent laser emission is 25° +/- 5°. The condition of divergent angle of 25° laser emission is 1/e2 of the peak intensity. Note: The VCSEL driver is pulsed at 100 MHz with a 33% duty cycle (see Figure 17.) so average current consumption on AVDD_VCSEL is one third of the peak. Figure 17. VCSEL pulse duty cycle Table 12. Average 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.Peak power is 14mW. Average during active ranging (33% duty cycle). |
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