TSL245 datasheet(3/11 Pages) AMSCO

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TSL245R

INFRARED LIGHT-TO-FREQUENCY CONVERTER

TAOS060D − SEPTEMBER 2007

The LUMENOLOGY r Company

www.taosinc.com

Terminal Functions

TERMINAL

TYPE

DESCRIPTION

NAME

NO.

TYPE

DESCRIPTION

GND

Power supply ground (substrate). All voltages are referenced to GND.

OUT

Output voltage.

VDD

Supply voltage.

Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted)†

Supply voltage, VDD (see Note 1)

6 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range, TA

−25°C to 70°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, Tstg

−25°C to 85°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds (S Package)

260°C

. . . . . . . . . . . . . . . . . . . .

Reflow solder, in accordance with J-STD-020C or J-STD-020D (SM Package)

260°C

. . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: All voltage values are with respect to GND.

Recommended Operating Conditions

MIN

NOM

MAX

UNIT

Supply voltage, VDD

2.7

5.5

Operating free-air temperature range, TA

−25

°C

Electrical Characteristics at VDD = 5 V, TA = 25°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VOH

High-level output voltage

IOH = −4 mA

4.5

VOL

Low-level output voltage

IOL = 4 mA

0.25

0.4

IDD

Supply current

Full-scale frequency‡

500

kHz

kSVS

Supply-voltage sensitivity

VDD = 5 V ±10%

± 0.5

%/ V

‡ Full-scale frequency is the maximum operating frequency of the device without saturation.

Operating Characteristics at VDD = 5 V, TA = 25°C, λp = 940 nm

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Output frequency

Ee = 40 μW/cm2

kHz

Dark frequency

Ee = 0 μW/cm2

0.4

Irradiance responsivity

0.5

kHz/(μW/

cm2)

Nli

it §

fO = 0 kHz to 10 kHz

± 0.1%

%F.S.

Nonlinearity §

fO = 0 kHz to 100 kHz

± 0.2%

%F.S.

Step response to full-scale step input

1 pulse of new

frequency plus 1 μs

§ Nonlinearity is defined as the deviation of fO from a straight line between zero and full scale, expressed as a percent of full scale.

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