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Os motores de busca de Datasheet de Componentes eletrônicos |
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Os motores de busca de Datasheet de Componentes eletrônicos |
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TSL27711 Folha de dados(PDF) 23 Page - OSRAM GmbH |
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TSL27711 Folha de dados(HTML) 23 Page - OSRAM GmbH |
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23 / 51 page  Page 22 ams Datasheet Document Feedback [v1-00] 2016-Mar-22 TSL2771 − Principles O f Operation Power Management Power consumption can be controlled through the use of the wait state timing because the wait state consumes only 65 μA of power. Figure 25 shows an example of using the power management feature to achieve an average power consumption of 155 μA current with four 100-mA pulses of proximity detection and 50 ms of ALS detection. Figure 25: Power Consumption Calculations 4 IR LED Pulses 64 ms (32 ms LED On Time) 2.72 ms 47 ms 50 ms Prox ADC Prox Accum WAIT ALS Avg = ((0.032 y 100) + (2.72 y 0.175) + (47 y 0.065) + (50 y 0.175)) / 100 = 155 mA State Duration (ms) Current (mA) Prox Accum (LED On) 0.064 (0.032) 100.0 Prox ADC 2.7 0.175 Wait 47 0.065 ALS 50 0.175 Example: 100 ms Cycle TIme |
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