TSL235R-LF TAOS, TSL235R-LF Datasheet

Light To Frequency & Light To Voltage Light to Frequency Converter

TSL235R-LF

Manufacturer Part Number
TSL235R-LF
Description
Light To Frequency & Light To Voltage Light to Frequency Converter
Manufacturer
TAOS
Datasheet

Specifications of TSL235R-LF

Peak Wavelength
700 nm
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
- 25 C
Mounting Style
Through Hole
Product
Light-to-Voltage Converters
Package / Case
Side Looker S
External Depth
2.6mm
External Width
4.6mm
Length/height, External
4.6mm
Operating Temperature Max
70°C
Operating Temperature Min
-25°C
Operating Temperature Range
-25°C To +70°C
Output Current
4mA
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TSL235R-LF
Manufacturer:
ON
Quantity:
320
Part Number:
TSL235R-LF
0
r
Description
Functional Block Diagram
Available Options
Terminal Functions
The LUMENOLOGY r Company
GND
OUT
V
TSL235R
TSL235R
TSL235R
DEVICE
DD
NAME
D
D
D
D
D
D
D
D
TERMINAL
The TSL235R 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 TSL235R is characterized for operation over the temperature range of −25°C to 70°C and is supplied in
a 3-lead clear plastic side-looker package with an integral lens. When supplied in the lead (Pb) free package,
the device is RoHS compliant.
High-Resolution Conversion of Light
Intensity to Frequency With No External
Components
Communicates Directly With a
Microcontroller
Compact Three-Leaded Clear-Plastic
Package
Single-Supply Operation Down to 2.7 V
Nonlinearity Error Typically 0.2% at 100 kHz
Stable 150 ppm/°C Temperature Coefficient
Single-Supply Operation
RoHS Compliant (−LF Package Only)
Light
−25°C to 70°C
−25°C to 70°C
−25°C to 70°C
NO.
1
3
2
T
A
TYPE
TYPE
O
Texas Advanced Optoelectronic Solutions Inc.
Photodiode
3-lead Sidelooker
3-lead Sidelooker—Lead (Pb) Free
3-lead Surface-Mount Sidelooker—Lead (Pb) Free
Power supply ground (substrate). All voltages are referenced to GND.
Output frequency.
Supply voltage.
1001 Klein Road S Suite 300 S Plano, TX 75074 S (972) 673-0759
r
PACKAGE − LEADS
r
www.taosinc.com
Current-to-Frequency
Converter
DESCRIPTION
DESCRIPTION
LIGHT-TO-FREQUENCY CONVERTER
GND
(FRONT VIEW)
SIDELOOKER
1
PACKAGE S
PACKAGE DESIGNATOR
V
Output
2
DD
r
SM
S
S
3
OUT
TAOS038E −SEPTEMBER 2007
GND
Copyright E 2007, TAOS Inc.
SURFACE MOUNT
ORDERING NUMBER
TSL235R
TSL235R−LF
TSL235RSM−LF
(FRONT VIEW)
PACKAGE SM
SIDELOOKER
1
V
2
DD
TSL235R
3
OUT
1

Related parts for TSL235R-LF

TSL235R-LF Summary of contents

Page 1

... The TSL235R is characterized for operation over the temperature range of −25°C to 70°C and is supplied in a 3-lead clear plastic side-looker package with an integral lens. When supplied in the lead (Pb) free package, the device is RoHS compliant ...

Page 2

... TSL235R LIGHT-TO-FREQUENCY CONVERTER TAOS038E −SEPTEMBER 2007 Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted) Supply voltage, V (see Note 1) DD Operating free-air temperature range, T Storage temperature range, T stg Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds (S Package) Reflow solder, in accordance with J-STD-020C or J-STD-020D (SM Package) † ...

Page 3

... WAVELENGTH OF INCIDENT LIGHT 7000 V DD 6000 5000 4000 3000 2000 1000 300 400 λ − Wavelength of Incident Light − www.taosinc.com TSL235R TAOS038E −SEPTEMBER 2007 500 600 700 800 900 1000 1100 λ − Wavelength − nm Figure 2 TEMPERATURE COEFFICIENT OF OUTPUT FREQUENCY 500 600 700 ...

Page 4

... TSL235R LIGHT-TO-FREQUENCY CONVERTER TAOS038E −SEPTEMBER 2007 1.010 1.005 1.000 0.995 0.990 0.985 0.980 2.5 Copyright E 2007, TAOS Inc. 4 TYPICAL CHARACTERISTICS OUTPUT FREQUENCY vs SUPPLY VOLTAGE T = 25° 250 kHz O 3 3 − Supply Voltage − Figure 5 r www.taosinc.com 5.5 The LUMENOLOGY r Company ...

Page 5

... Integration, the accumulation of pulses over a very long period of time, can be used to measure exposure — the amount of light present in an area over a given time period. 0.1 μF Figure 6. Typical TSL235R Interface to a Microcontroller The LUMENOLOGY r Company LIGHT-TO-FREQUENCY CONVERTER APPLICATION INFORMATION ...

Page 6

... TSL235R LIGHT-TO-FREQUENCY CONVERTER TAOS038E −SEPTEMBER 2007 PCB Pad Layout Suggested PCB pad layout guidelines for the SM surface mount package are shown in Figure 7. NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. Figure 7. Suggested SM Package PCB Layout Copyright E 2007, TAOS Inc. ...

Page 7

... C. The integrated photodiode active area is typically 0.92 mm top of the lens surface. D. Index of refraction of clear plastic is 1.55. E. Lead finish for TSL235R: solder dipped, 63% Sn/37% Pb. Lead finish for TSL235R−LF: solder dipped, 100% Sn. F. This drawing is subject to change without notice. Figure 8. Package S — Single-In-Line Side-Looker Package Configuration ...

Page 8

... C. The integrated photodiode active area is typically located in the center of the lens and 0.97 mm below the top of the lens surface. D. Index of refraction of clear plastic is 1.55. E. Lead finish for TSL235RSM−LF: solder dipped, 100% Sn. F. This drawing is subject to change without notice. Figure 9. Package SM — Surface Mount Side-Looker Package Configuration Copyright E 2007, TAOS Inc ...

Page 9

... UNAUTHORIZED AND ANY SUCH USE BY A CUSTOMER IS COMPLETELY AT THE CUSTOMER’S RISK. LUMENOLOGY, TAOS, the TAOS logo, and Texas Advanced Optoelectronic Solutions are registered trademarks of Texas Advanced Optoelectronic Solutions Incorporated. The LUMENOLOGY r Company LIGHT-TO-FREQUENCY CONVERTER NOTICE r www.taosinc.com TSL235R TAOS038E −SEPTEMBER 2007 Copyright E 2007, TAOS Inc ...

Page 10

... TSL235R LIGHT-TO-FREQUENCY CONVERTER TAOS038E −SEPTEMBER 2007 Copyright E 2007, TAOS Inc www.taosinc.com The LUMENOLOGY r Company r ...

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