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| 型号： | TSL26711FN |
| 厂商： | AMS-TAOS USA Inc |
| 文件页数： | 9/27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 |
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TSL2671
DIGITAL PROXIMITY DETECTOR
TAOS118 ? JANUARY 2011
Proximity Detection
Proximity sensing uses an external light source (generally an infrared emitter) to emit light, which is then viewed
by the integrated light detector to measure the amount of reflected light when an object is in the light path
(Figure 6). The amount of light detected from a reflected surface can then be used to determine an object’s
proximity to the sensor.
Surface Reflectivity (SR)
Distance (D)
Background Energy (BGE)
Glass Attenuation (GA)
IR LED
2771
Optical Crosstalk (OC)
Figure 6. Proximity Detection
The device has controls for the number of IR pulses (PPCOUNT), the integration time (PTIME), the LED drive
current (PDRIVE), and the photodiode configuration (PDIODE) (Figure 7). The photodiode configuration can
be set to CH1 diode (recommended), CH0 diode, or a combination of both diodes. At the end of the integration
cycle, the results are latched into the proximity data (PDATAx) registers.
IR
LED
V DD
PDRIVE(r0x0F, b7:6)
PTIME(r0x02)
IR LED Constant
Current Sink
Prox Control
Prox
Integration
Prox
ADC
Prox
Data
PDATAH(r0x19), PDATAL(r0x18)
CH0
CH1
PPCOUNT(r0x0E)
Figure 7. Proximity Detection Operation
The LED drive current is controlled by a regulated current sink on the LDR pin. This feature eliminates the need
to use a current limiting resistor to control LED current. The LED drive current can be configured for 12.5 mA,
25 mA, 50 mA, or 100 mA. For higher LED drive requirements, an external P type transistor can be used to
control the LED current.
Copyright E 2011, TAOS Inc.
8
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www.taosinc.com
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The LUMENOLOGY r Company
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| TSL26713FN | 功能描述:近程传感器 Prox Det LTD I2C 6 Pin ODFN RoHS:否 制造商:Vishay Semiconductors 感应方式:Optical 感应距离:1 mm to 200 mm 电源电压:2.5 V to 3.6 V 安装风格:SMD/SMT 输出配置:Digital 最大工作温度:+ 85 C 最小工作温度:- 25 C 系列:VCNL3020 |
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| TSL26723FN | 制造商:TAOS Inc 功能描述:IC PROXIMITY DETECTOR 6-DFN |
| TSL267-LF | 功能描述:光频率和光电压 Light to Voltage Precision NIR RoHS:否 制造商:ams 峰值波长:1000 nm 工作电源电压:5 V 最大工作温度:+ 85 C 最小工作温度:- 25 C 安装风格: 封装 / 箱体: |
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