TCS3103 Datasheet, PDF (1/12 Pages) TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS – LIGHT-TO-VOLTAGE COLOR SENSOR

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D Three-Channel RGB Color Sensor
D Converts Light Intensity to Voltage
D Single-Voltage Supply Operation —
4.5 V to 5.5 V
D Rail-to-Rail Output
D Programmable gain settings:
− TCS3103 (2y, 4y)
− TCS3104 (4y, 1y)
D Low Supply Current — 270 mA Typical
D Fast Response Time —
Rise Time = 12 ms Typical
D Low Dark Offset
TCS3103, TCS3104
LIGHT-TO-VOLTAGE COLOR SENSOR
TAOS108B − JULY 2010
PACKAGE FN
DUAL FLAT NO-LEAD
(TOP VIEW)
V_DD 1
GND 2
MFP 3
6 V_OR
5 V_OG
4 V_OB
Description
The TCS3103 and TCS3104 RGB Light-to-Voltage Converters combine three photodiodes with optical filters,
amplifiers, and gain-switching circuitry on a single chip. The output of each channel is a voltage that is linearly
proportional to light intensity (irradiance) on the corresponding photodiode element. Gain is switchable via a
digital input pin from 1× to 4× on the TCS3104, and from 2× to 4× on the TCS3103 (as compared to 1× of
TCS3104).
Each channel on the device consists of a photodiode with a red, green, or blue optical filter, a current-to-voltage
converter, and gain control elements. The voltage from each of the red, green, and blue channels is output on
the V_OR, V_OG, and V_OB pins, respectively. The single MFP pin controls the gain for all three channels. Each of
the three photodiode channels is split into three elements, which are dispersed in a 3 × 3 array. This makes the
device less sensitive to non-uniform illumination across the sensing area. The overall photodiode active area
is 378 μm × 378 μm. Each channel is factory-trimmed for low dark offset voltage and uniform sensitivity from
device-to-device.
The TCS3103 and TCS3104 are intended for use in a variety of applications including color-point feedback
control in solid-state illumination and backlight systems, color adjustment in printers, process controls,
diagnostic systems, paper and product handling, toys, and games.
Functional Block Diagram
V_OR
Red
Channel
V_OG
Green
Channel
Blue
Current-to-Voltage
Converter
V_OB
V_DD = 4.5 V to 5.5 V
Channel
MFP
Control
The LUMENOLOGY r Company
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Texas Advanced Optoelectronic Solutions Inc.
1001 Klein Road S Suite 300 S Plano, TX 75074 S (972_r) 673-0759
www.taosinc.com
Copyright E 2010, TAOS Inc.
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