TCS3104 Datasheet | TAOS

r r 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 m A 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) VDD 1 GND 2 MFP 3 6 VOR 5 VOG 4 VOB Description The TCS3103 and TCS3104 RGB Light-to-Voltage Converters bine 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 pared 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 VOR, VOG, and VOB 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 VDD = 4.5 V to 5.5 V Red Channel Green Channel Blue Channel Current-to-Voltage...