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參數(shù)資料
| 型號： | TSL238D |
| 廠商： | TAOS Inc. |
| 英文描述： | HIGH-SENSITIVITY LIGHT-TO-FREQUENCY CONVERTER |
| 中文描述： | 高靈敏度光到頻率轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 188K |
| 代理商： | TSL238D |
TSL238
HIGH-SENSITIVITY
LIGHT-TO-FREQUENCY CONVERTER
TAOS073F
OCTOBER 2007
1
The
LUMENOLOGY
Company
Copyright 2007, TAOS Inc.
www.taosinc.com
High-Resolution Conversion of Light
Intensity to Frequency With No External
Components
High Irradiance Responsivity . . .
2.3 kHz/( W/cm
2
) at
λ
p
= 524 nm
Low Dark Frequency . . . < 2 Hz at 25 C
Single-Supply Operation . . . 2.7 V to 5.5 V
Stable 200 ppm/
°
C Temperature Coefficient
Interfaces Directly to a Microcontroller
Lead (Pb) Free Package
RoHS Compliant
Description
The TSL238 light-to-frequency converter combines a silicon photodiode and a current-to-frequency converter
on a single monolithic CMOS integrated circuit. Output is a square wave (50% duty cycle) with frequency directly
proportional to light intensity (irradiance) on the photodiode. The digital output allows direct interface to a
microcontroller or other logic circuitry. The device has been temperature compensated for the
ultraviolet-to-visible light range of 320 nm to 700 nm and responds over the light range of 320 nm to 1050 nm.
The TSL238 is characterized for operation over the temperature range of
25
°
C to 70
°
C and is supplied in an
8-lead plastic small outline package. When supplied in the lead (Pb) free package, the device is RoHS
compliant.
For automotive and other extended temperature applications, please contact TAOS for information.
Functional Block Diagram
Light
Current-to-Frequency
Converter
Photodiode
Output
Available Options
DEVICE
TSL238
T
A
PACKAGE
LEADS
8-lead Plastic Small Outline IC
PACKAGE DESIGNATOR
D
ORDERING NUMBER
TSL238D
25
°
C to 70
°
C
Texas Advanced Optoelectronic Solutions Inc.
1001 Klein Road Suite 300 Plano, TX 75074 (972) 673-0759
8 OUT
7 V
DD
6 GND
5 OE
PACKAGE D
8-LEAD SOIC
(TOP VIEW)
NC
1
NC 2
NC 3
NC 4
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TSL238D-TR | 功能描述:光頻率和光電壓 Light to Frequency High Sensitivity RoHS:否 制造商:ams 峰值波長:1000 nm 工作電源電壓:5 V 最大工作溫度:+ 85 C 最小工作溫度:- 25 C 安裝風(fēng)格: 封裝 / 箱體: |
| TSL238T | 功能描述:光頻率和光電壓 LIGHT TO FREQ CONV RoHS:否 制造商:ams 峰值波長:1000 nm 工作電源電壓:5 V 最大工作溫度:+ 85 C 最小工作溫度:- 25 C 安裝風(fēng)格: 封裝 / 箱體: |
| TSL240-124 | 制造商:Traco Power 功能描述:TSL univ input DIN rail SMPS,24-28V 240W |
| TSL240-124(P) | 制造商:TRACOPOWER 制造商全稱:TRACO Electronic AG 功能描述:Industrial Power Supplies |
| TSL240-124P | 制造商:TRACO ELECTRONICS AG 功能描述:POWER SUPPLY; INDUSTRIAL; DIN RAIL; 240WATT; 12VDC; 10AMP 制造商:Traco Power 功能描述:TSL univ input DIN rail SMPS,24-28V 240W |
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