参数资料
型号: TSL26713FN
厂商: AMS-TAOS USA Inc
文件页数: 21/27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: TSL26713-FNDKR

TSL2671
DIGITAL PROXIMITY DETECTOR
TAOS118 ? JANUARY 2011
APPLICATION INFORMATION: HARDWARE
LED Driver Pin with Proximity Detection
The application hardware circuit with proximity detection requires an LED connected as shown in Figure 14.
V bat may be an independent power source. The 1- μ F decoupling capacitors should be of the low-ESR type and
be placed as close as possible to the load and V DD to reduce noise. To maximize system performance, the use
of PCB power and ground planes are recommended. If mounted on a flexible circuit, the power and ground
traces back to the PCB should be sufficiently wide enough to have a low resistance, such as < 1 Ω .
The I 2 C bus protocol was developed by Philips (now NXP). The pull-up resistor value (R P ) is a function of the
I 2 C bus speed, the supply voltage, and the capacitive bus loading. Users should consult the NXP I 2 C design
specification (http://www.i2c?bus.org/references/) for assistance. With a lightly loaded bus running at 400 kbps
and V DD = 3 V, 1.5-k Ω resistors have been found to be viable.
V BUS
1 m F
V DD(analog)
LED
V DD(digital)
1 m F
R P
R P
R PI
TSL2671
LDR
INT
SCL
SDA
Figure 14. Application Hardware Circuit for Proximity Sensing with Internal LED Driver
The power supply connection — PCB routing and supply decoupling — has a significant effect on proximity
performance. Contact TAOS or see the application notes available at www.TAOSinc.com for power supply
guidance.
Copyright E 2011, TAOS Inc.
20
r
www.taosinc.com
r
The LUMENOLOGY r Company
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