Datasheet > TSL238D

TSL238D

更新时间： 2024-02-21 08:49:07

品牌	Logo	应用领域
TAOS		转换器
页数	文件大小	规格书
12页	182K
描述
HIGH-SENSITIVITY LIGHT-TO-FREQUENCY CONVERTER

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技术参数
数据手册

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TSL238D 技术参数

是否Rohs认证：	符合	生命周期：	Unknown
Reach Compliance Code：	unknown	风险等级：	8.31
Samacsys Confidence：	4	Samacsys Status：	Released
Samacsys PartID：	780335	Samacsys Pin Count：	4
Samacsys Part Category：	Undefined or Miscellaneous	Samacsys Package Category：	Other
Samacsys Footprint Name：	TSL238T-2	Samacsys Released Date：	2017-06-13 14:44:01
Is Samacsys：	N	Base Number Matches：	1

TSL238D 数据手册

TSL238

HIGH-SENSITIVITY

LIGHT-TO-FREQUENCY CONVERTER

TAOS073F − OCTOBER 2007

PACKAGE D

8-LEAD SOIC

(TOP VIEW)

D High-Resolution Conversion of Light

Intensity to Frequency With No External

Components

D High Irradiance Responsivity . . .

NC 1

NC 2

NC 3

NC 4

8 OUT

7 V_DD

6 GND

5 OE

2.3 kHz/(ꢀW/cm ) at λ = 524 nm

D Low Dark Frequency . . . < 2 Hz at 25ꢀ C

D Single-Supply Operation . . . 2.7 V to 5.5 V

D Stable 200 ppm/°C Temperature Coefficient

D Interfaces Directly to a Microcontroller

D Lead (Pb) Free Package

D 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

Current-to-Frequency

Light

Photodiode

Output

Converter

Available Options

DEVICE

PACKAGE − LEADS

8-lead Plastic Small Outline IC

PACKAGE DESIGNATOR ORDERING NUMBER

TSL238

−25°C to 70°C

TSL238D

The LUMENOLOGY r Company

Texas Adva^rnced Optoelectronic Solutions Inc.

1001 Klein Road S Suite 300 S Plano, TX 75074 S (972) 673-0759

www.taosinc.com

12 3 4 5 6 7...12

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