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參數(shù)資料
| 型號(hào)： | TSL237T |
| 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(yè)數(shù)： | 1/12頁(yè) |
| 文件大?。?/td> | 194K |
| 代理商： | TSL237T |
TSL237T
HIGH-SENSITIVITY
LIGHT-TO-FREQUENCY CONVERTER
TAOS055G
JUNE 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 . . .
1.2 kHz/( W/cm
2
) at
λ
p
= 640 nm
Low Dark Frequency . . . < 2 Hz at 50 C
Single-Supply Operation . . . 2.7 V to 5.5 V
Stable 200 ppm/
°
C Temperature Coefficient
Communicates Directly with a
Microcontroller
RoHS Compliant
Description
The TSL237T 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. Output enable (OE) places the output in a high-impedance state for
multiple-unit sharing of a microcontroller input line. 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 TSL237T is characterized for operation over the temperature range of
40
°
C to 85
°
C and is supplied in
a compact 4-lead surface-mount package.
Functional Block Diagram
Light
Current-to-Frequency
Converter
Photodiode
Output
OE
Available Options
DEVICE
TSL237T
T
A
PACKAGE
LEADS
4-lead Low Profile Surface Mount
PACKAGE DESIGNATOR
T
ORDERING NUMBER
TSL237T
40
°
C to 85
°
Terminal Functions
TERMINAL
NAME
T PKG
NO.
TYPE
DESCRIPTION
GND
OE
OUT
V
DD
2
1
4
3
Power supply ground (substrate). All voltages are referenced to GND.
Enable for f
O
(active low).
Output frequency.
Supply voltage.
I
O
Texas Advanced Optoelectronic Solutions Inc.
1001 Klein Road Suite 300 Plano, TX 75074 (972) 673-0759
PACKAGE T
4-LEAD SMD
(TOP VIEW)
OE 1
GND 2
4 OUT
3 V
DD
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| TSL237 | HIGH-SENSITIVITY LIGHT-TO-FREQUENCY CONVERTER |
| TSL237S-LF | HIGH-SENSITIVITY LIGHT-TO-FREQUENCY CONVERTER |
| TSL237SM-LF | HIGH-SENSITIVITY LIGHT-TO-FREQUENCY CONVERTER |
| TSL238T | HIGH-SENSITIVITY LIGHT-TO-FREQUENCY CONVERTER |
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|---|---|
| TSL238 | 制造商:TAOS 制造商全稱:TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS 功能描述:HIGH-SENSITIVITY LIGHT-TO-FREQUENCY CONVERTER |
| TSL238D | 功能描述:光頻率和光電壓 Light to Frequency Converter RoHS:否 制造商:ams 峰值波長(zhǎng):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: |
| 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(zhǎng):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(zhǎng):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 |
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