Datasheet TSL252R, TSL251R, TSL250R Datasheet (TAOS)



TSL250R, TSL251R, TSL252R

LIGHTTOVOLTAGE OPTICAL SENSORS



TAOS028A – MAY 2001

 Monolithic Silicon IC Containing

Photodiode, Operational Amplifier, and

PACKAGE

(FRONT VIEW)

Feedback Components

 Converts Light Intensity to a Voltage
 High Irradiance Responsivity, Typically 137

mV/(W/cm2) at p = 635 nm (TSL250R)

321

 Compact 3-Lead Clear Plastic Package
 Single Voltage Supply Operation

 Low Dark (Offset) Voltage....10mV Max

 Low Supply Current......1.1 mA Typical

 Wide Supply-Voltage Range.... 2.7 V to 5.5 V

 Replacements for TSL250, TSL251, and

TSL252

GND

Description

The TSL250R, TSL251R, and TSL252R are light-to-voltage optical sensors, each combining a photodiode and
a transimpedance amplifier (feedback resistor = 16 MΩ, 8 MΩ, and 2.8 MΩ respectively) on a single monolithic
IC. Output voltage is directly proportional to the light intensity (irradiance) on the photodiode. These devices
have improved amplifier offset-voltage stability and low power consumption and are supplied in a 3-lead clear
plastic sidelooker package with an integral lens

DD

OUTV

Functional Block Diagram

–
+

Terminal Functions

TERMINAL

NAME NO.

GND 1 Ground (substrate). All voltages are referenced to GND.
OUT 3 Output voltage
V

DD

2 Supply voltage

Voltage
Output

DESCRIPTION

www.taosinc.com

Texas Advanced Optoelectronic Solutions Inc.



800 Jupiter Road, Suite 205  Plano, TX 75074  [phone]



Copyright  2001, TAOS Inc.

1

TSL250R, TSL251R, TSL252R

TEST

VOOut ut voltage

V

E

e

µW/cm

T

coefficient of

E

e

µW/cm

g

E

e

196 µW/cm

Irradiance

DD

y

LIGHTTOVOLTAGE OPTICAL SENSORS

TAOS028A – MAY 2001

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

Supply voltage, VDD (see Note 1) 6 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output current, IO ±10 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Duration of short-circuit current at (or below) 25°C (see Note 2) 5 s. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range, TA –25°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, T

–25°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

stg

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 240°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.

NOTES: 1. All voltages are with respect to GND.

2. Output may be shorted to supply.

Recommended Operating Conditions

MIN NOM MAX UNIT

Supply voltage, V
Operating free-air temperature, T

DD

A

2.7 5.5 V
0 70 °C

Electrical Characteristics at VDD = 5 V , TA = 25°C, λp = 635 nm, RL = 10 kΩ (unless otherwise noted)
(see Notes 3, 4, and 5)

TEST

PARAMETER

VDDark voltage Ee = 0 0 4 10 0 4 10 0 4 10 mV

Maximum output

V

OM

voltage

VOOutput voltage

p

emperature

coefficient of

α

vo

output voltage
(VO)

Irradiance

N

e

responsivity

I

Supply current

DD

NOTES: 3. Measurements are made with RL = 10 kΩ between output and ground.

4. Optical measurements are made using small-angle incident radiation from an LED optical source.

5. The input irradiance Ee is supplied by an AlInGaP LED with peak wavelength λp = 635 nm

6. The input irradiance Ee is supplied by a GaAlAs LED with peak wavelength λp = 880 nm

7. Irradiance responsivity is characterized over the range VO = 0.05 to 2.9 V. The best-fit straight line of Output Voltage VO versus
irradiance Ee over this range will typically have a positive extrapolated VO value for Ee = 0.

CONDITIONS

VDD = 4.5 V 3.0 3.3 3.0 3.3 3.0 3.3 V
Ee = 14.6 µW/cm

Ee = 38.5 µW/cm
Ee = 196 µW/cm

Ee = 14.6 µW/cm2,

= 14.6

TA = 0°C to 70°C
Ee = 38.5 µW/cm2,

= 38.5

TA = 0°C to 70°C
Ee = 196 µW/cm2,

=

TA = 0°C to 70°C

λp = 635 nm,

See Notes 5 and 7

λp = 880 nm,

See Notes 6 and 7
Ee = 14.6 µW/cm
Ee = 38.5 µW/cm
Ee = 196 µW/cm

2
2

2

,

,

,

2
2

2

TSL250R TSL251R TSL252R

MIN TYP MAX MIN TYP MAX MIN TYP MAX

1.5 2 2.5

1.5 2 2.5

1.5 2 2.5

1.6 mV/°C

0.08 %/°C

1.6 mV/°C

0.08 %/°C

1.6 mV/°C

0.08 %/°C

137 52 10.2

127 48 9.4

1.1 1.7

1.1 1.7

1.1 1.7

UNIT

V

mV/(µW/cm2)

mA

†

Copyright  2001, TAOS Inc.

2





www.taosinc.com

TSL250R, TSL251R, TSL252R

LIGHTTOVOLTAGE OPTICAL SENSORS

TAOS028A – MAY 2001

Dynamic Characteristics at TA = 25°C (see Figure 1)

PARAMETER TEST CONDITIONS

trOutput pulse rise time VDD = 5 V, λp = 635 nm 260 70 7 µs
tfOutput pulse fall time VDD = 5 V, λp = 635 nm 260 70 7 µs

VnOutput noise voltage

VDD = 5 V,
f = 1000 Hz

Ee = 0,

PARAMETER MEASUREMENT INFORMATION

V

DD

Pulse

Generator

(see Note A)

NOTES: A. The input irradiance is supplied by a pulsed AlInGaP light-emitting diode with the following characteristics: λp = 635 nm,

LED

TSL25xR

TEST CIRCUIT

tr < 1 µs, tf < 1 µs.

B. The output waveform is monitored on an oscilloscope with the following characteristics: tr < 100 ns, Zi ≥ 1 MΩ, Ci ≤ 20 pF.

2

–
+

1

TSL250R TSL251R TSL252R

MIN TYP MAX MIN TYP MAX MIN TYP MAX

0.8 0.7 0.6 µV/√Hz

E

e

Input

90%

t

r

90%

10%

3

R

Output

L

Output

(see Note B)

10%

VOLTAGE WAVEFORM

UNIT

t

f

Figure 1. Switching Times

www.taosinc.com





Copyright  2001, TAOS Inc.

3

TSL250R, TSL251R, TSL252R
LIGHTTOVOLTAGE OPTICAL SENSORS

TAOS028A – MAY 2001

TYPICAL CHARACTERISTICS

OUTPUT VOLTAGE

vs

IRRADIANCE

10

VDD = 5 V

λp = 635 nm

RL = 10 k
TA = 25°C

TSL251R

PHOTODIODE SPECTRAL RESPONSIVITY

1.2
TA = 25°C

Normalized to

1

635 nm

1

– Output Voltage – V

O

V

0.01

TSL250R

0.1

0.1 1 10 100
E

– Irradiance – µW/cm

e

2

Figure 2

MAXIMUM OUTPUT VOLTAGE

vs

SUPPLY VOLTAGE

5

RL = 10 kΩ
TA = 25°C

4

TSL252R

0.8

0.6

0.4

Relative Responsivity

0.2

0

300 500 700 900

λ – Wavelength – nm

Figure 3

SUPPLY CURRENT

vs

OUTPUT VOLTAGE

1.6
VDD = 5 V

RL = 10 k
TA = 25°C

1.4

1100

3

2

– Maximum Output Voltage – V

1

OM

V

0

Copyright  2001, TAOS Inc.

4

4 4.5 5

VDD – Supply Voltage – V

Figure 4

1.2

1

– Supply Current – mA

DD

I

0.8

5.52.5 3 3.5

0.6

012 3

VO – Output Voltage – V

4

Figure 5





www.taosinc.com

TYPICAL CHARACTERISTICS

NORMALIZED OUTPUT VOLTAGE

vs

ANGULAR DISPLACEMENT

1

TSL250R, TSL251R, TSL252R

LIGHTTOVOLTAGE OPTICAL SENSORS

TAOS028A – MAY 2001

0.8

0.6

0.4

Normalized Output Voltage

0.2

O

V –

0

80° 60° 40° 20° 0° 80°60°40°20°

θ – Angular Displacement

TSL251R

Optical Axis

Figure 6

TSL252R

TSL250R

www.taosinc.com





Copyright  2001, TAOS Inc.

5

TSL250R, TSL251R, TSL252R
LIGHTTOVOLTAGE OPTICAL SENSORS

TAOS028A – MAY 2001

MECHANICAL INFORMATION

The device is supplied in a clear plastic three-lead package. The integrated photodiode active area is typically
1,0 mm2 (0.0016 in2) for TSL250R, 0,5 mm2 (0.00078 in2) for the TSL251R, and 0,26 mm2 (0.0004 in2) for the
TSL252R.

0.072 (1,84)

0.189 (4,80)

0.173 (4,40)

0.165 (4,20)

0.150 (3,80)

0.071 (1,80)

0.110 (2,80)

0.016 (0,40)

0.071 (1,8)

0.189 (4,80)

0.173 (4,40)

0.057 (1,44)

0.032 (0,80)

0.016 (0,40)

R 0.035 (0,90)

0.079 (2,00)

0.039 (1,00)

0.027 (0,70)

0.079 (2,00)

0.026 (0,65)

0.018 (0,45)

0.079 (2,00)

Figure 7. Package Configuration

NOTES: A. All linear dimensions are in inches (millimeters).

B. This drawing is subject to change without notice.
C. All dimensions apply before solder dip.
D. Package body is a clear nonfilled optically transparent material
E. Index of refraction of clear plastic is 1.55.

0.029 (0,75)

0.102 (2,6)

0.630 (16,00)

0.531 (13,50)

0.018 (0,45)

Copyright  2001, TAOS Inc.

6





www.taosinc.com

TSL250R, TSL251R, TSL252R

LIGHTTOVOLTAGE OPTICAL SENSORS

TAOS028A – MAY 2001

PRODUCTION DATA — information in this document is current at publication date. Products conform to
specifications in accordance with the terms of Texas Advanced Optoelectronic Solutions, Inc. standard
warranty. Production processing does not necessarily include testing of all parameters.

NOTICE

Texas Advanced Optoelectronic Solutions, Inc. (TAOS) reserves the right to make changes to the products contained in this
document to improve performance or for any other purpose, or to discontinue them without notice. Customers are advised
to contact TAOS to obtain the latest product information before placing orders or designing TAOS products into systems.

TAOS assumes no responsibility for the use of any products or circuits described in this document or customer product
design, conveys no license, either expressed or implied, under any patent or other right, and makes no representation that
the circuits are free of patent infringement. TAOS further makes no claim as to the suitability of its products for any particular
purpose, nor does TAOS assume any liability arising out of the use of any product or circuit, and specifically disclaims any
and all liability, including without limitation consequential or incidental damages.

TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS, INC. PRODUCTS ARE NOT DESIGNED OR INTENDED FOR
USE IN CRITICAL APPLICATIONS IN WHICH THE FAILURE OR MALFUNCTION OF THE TAOS PRODUCT MAY
RESUL T I N PERSONAL INJURY OR DEATH. USE OF T AOS PRODUCTS IN LIFE SUPPOR T SYSTEMS IS EXPRESSLY
UNAUTHORIZED AND ANY SUCH USE BY A CUSTOMER IS COMPLETELY AT THE CUSTOMER’S RISK.

TAOS, the TAOS logo, and Texas Advanced Optoelectronic Solutions are trademarks of Texas Advanced Optoelectronic Solutions
Incorporated.

www.taosinc.com





Copyright  2001, TAOS Inc.

7

TSL250R, TSL251R, TSL252R
LIGHTTOVOLTAGE OPTICAL SENSORS

TAOS028A – MAY 2001

Copyright  2001, TAOS Inc.

8





www.taosinc.com