TSL245RSM TAOS [TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS], TSL245RSM Datasheet

no-image

TSL245RSM

Manufacturer Part Number
TSL245RSM
Description
INFRARED LIGHT-TO-FREQUENCY CONVERTER
Manufacturer
TAOS [TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS]
Datasheet
r
Description
Functional Block Diagram
Available Options
The LUMENOLOGY r Company
TSL245R
TSL245R
TSL245R
TSL245R
DEVICE
D
D
D
D
D
D
D
D
D
D
The TSL245R 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 TSL245R is characterized for operation over the temperature range
of −25°C to 70°C and is supplied in a 3-lead plastic side-looker package with an integral visible-light cutoff filter
and lens. When supplied in the lead (Pb) free package, the devices are RoHS compliant.
High-Resolution Conversion of Light
Intensity to Frequency With No External
Components
Communicates Directly With a
Microcontroller
Compact Three-Leaded Plastic Package
Integral Visible-Light Cutoff Filter
Single-Supply Operation . . . 2.7 V to 5.5 V
High Irradiance Responsivity . . . Typically
500 Hz/(μW/cm
Nonlinearity Error Typically 0.2% at 100 kHz
Available in Through-Hole and Surface
Mount Three-Lead Sidelooker Packages
Replacement for TSL245
Lead (Pb) Free Package Option Available
Light
−25°C to 70°
−25°C to 70°
−25°C to 70°
−25°C to 70°
T
A
2
) at 940 nm
Texas Advanced Optoelectronic Solutions Inc.
Photodiode
3-lead Surface Mount Side-Looker — Lead (Pb)
1001 Klein Road S Suite 300 S Plano, TX 75074 S (972) 673-0759
3-lead Sidelooker — Lead (Pb) Free
3-lead Surface Mount Sidelooker
r
PACKAGE − LEADS
3-lead Sidelooker
r
Free
www.taosinc.com
Current-to-Frequency
INFRARED LIGHT-TO-FREQUENCY CONVERTER
Converter
GND
(FRONT VIEW)
SIDELOOKER
1
PACKAGE DESIGNATOR
PACKAGE S
V
Output
2
DD
r
SM
SM
S
S
3
OUT
TAOS060D − SEPTEMBER 2007
GND
Copyright E 2007, TAOS Inc.
SURFACE MOUNT
ORDERING NUMBER
(FRONT VIEW)
PACKAGE SM
SIDELOOKER
TSL245RSM−LF
1
TSL245R−LF
TSL245RSM
TSL245R
V
2
DD
TSL245R
3
OUT
1

Related parts for TSL245RSM

TSL245RSM Summary of contents

Page 1

... Current-to-Frequency Converter PACKAGE − LEADS PACKAGE DESIGNATOR 3-lead Sidelooker Free r www.taosinc.com TSL245R TAOS060D − SEPTEMBER 2007 PACKAGE SM SURFACE MOUNT SIDELOOKER (FRONT VIEW GND V OUT OUT DD Output ORDERING NUMBER S TSL245R S TSL245R−LF SM TSL245RSM SM TSL245RSM−LF Copyright E 2007, TAOS Inc ...

Page 2

TSL245R INFRARED LIGHT-TO-FREQUENCY CONVERTER TAOS060D − SEPTEMBER 2007 Terminal Functions TERMINAL TYPE TYPE NAME NO. GND 1 Power supply ground (substrate). All voltages are referenced to GND. OUT 3 O Output voltage Supply voltage. DD Absolute Maximum Ratings ...

Page 3

OUTPUT FREQUENCY vs IRRADIANCE 1000 940 nm λ p 100 T = 25° 0.1 0.01 0.001 0.001 0.01 0 − Irradiance − μW/cm e Figure 1 DARK FREQUENCY vs ...

Page 4

TSL245R INFRARED LIGHT-TO-FREQUENCY CONVERTER TAOS060D − SEPTEMBER 2007 Power-supply considerations Power-supply lines must be decoupled by a 0.01-μF to 0.1-μF capacitor with short leads placed close to the TSL245R (Figure 5). A low-noise power supply is required to minimize jitter ...

Page 5

PCB Pad Layout Suggested PCB pad layout guidelines for the SM surface mount package are shown in Figure 6. NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. Figure 6. Suggested SM ...

Page 6

TSL245R INFRARED LIGHT-TO-FREQUENCY CONVERTER TAOS060D − SEPTEMBER 2007 PACKAGE S TOP VIEW 4.60 2.60 R 0.90 1.64 FRONT VIEW 1.80 2. 0.47 TYP NOTES: A. All linear dimensions are in millimeters; tolerance is ± 0.25 ...

Page 7

... D. Lead finish for TSL245RSM: solder dipped, 63% Sn/37% Pb. Lead finish for TSL245xRSM−LF: solder dipped, 100% Sn. E. This drawing is subject to change without notice. Figure 8. Package SM — Surface Mount Side-Looker Package Configuration ...

Page 8

TSL245R INFRARED LIGHT-TO-FREQUENCY CONVERTER TAOS060D − SEPTEMBER 2007 TOP VIEW 1.75 11.50 j 1.50 + 0.25 DETAIL A 45 Max 11. NOTES: A. All linear dimensions are in millimeters, dimension tolerance is ± 0.10 mm unless otherwise noted. ...

Page 9

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. LEAD-FREE ...

Page 10

TSL245R INFRARED LIGHT-TO-FREQUENCY CONVERTER TAOS060D − SEPTEMBER 2007 Copyright E 2007, TAOS Inc www.taosinc.com The LUMENOLOGY r Company r ...

Related keywords