参数资料
型号: TSL26711FN
厂商: AMS-TAOS USA Inc
文件页数: 13/27页
文件大小: 0K
描述: IC PROXIMITY DETECTOR 6-DFN
标准包装: 1
检测距离: 18'(45.72cm)
传感器类型: 红外线
物体感测: 非金属
响应频率: 400kHz
主体材料: *
电源电压: 2.6 V ~ 3.6 V
端子类型: 2 线
封装/外壳: *
其它名称: TSL26711-FNDKR
TSL2671
DIGITAL PROXIMITY DETECTOR
TAOS118 ? JANUARY 2011
Power Management
Power consumption can be controlled through the use of the wait state timing because the wait state consumes
only 65 μ A of power. Figure 14 shows an example of using the power management feature to achieve an
average power consumption of 138 μ A current with four 100-mA pulses of proximity detection.
4 IR LED Pulses
Prox Accum
Prox ADC
65 m s (29 m s LED On Time)
2.72 ms
Example: ~49 ms Cycle TIme
Wait
Wait
Delay
43.52 ms
5.44 ms
State
Prox Accum
LED On
Prox ADC
Wait
Wait Delay
Duration (ms)
0.065 (Note 1)
0.029 (Note 2)
2.72
43.52
5.44
Current (mA)
100.0
0.175
0.065
0.175
Average Current = ((0.029 y 100) + (2.72 y 0.175) + (43.52 y 0.065) + (5.44 y 0.175)) / 52 = 138 m A
Note 1: Prox Accum = 16.3 m s per pulse y 4 pulses = 65 m s = 0.065 ms
Note 2: LED On = 7.2 m s per pulse y 4 pulses = 29 m s = 0.029 ms
Figure 12. Power Consumption Calculations
Copyright E 2011, TAOS Inc.
12
r
www.taosinc.com
r
The LUMENOLOGY r Company
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