Tech Today New Product Information Ambient Light Sensor GA1A1S203WP Features Sensitivity characteristics n Logarithmic output n Thinnest in the industry with a compact package (1.6 × 2.0 × 0.42 mm) n Stable output current over the specified temperature range n Adapted to human eye sensitivity n Integrated photo-diode and amplifier circuit n Reflow soldering/lead-free OPIC light detector Adapted to human eye sensitivity Relative Spectral Sensitivity (%) 100 80 GA1A1S203WP Photo transistor peak sensitivity wavelength: 600 nm 60 40 20 0 300 400 Main Specifications Items Human eye peak sensitivity wavelength: 555 nm 500 600 700 800 Wavelength (nm) 900 1000 1100 Applications Symbol Specifications Condition Supply voltage Vcc 2.3 to 3.2 V Dissipation current Icc TYP. 70 µA Vcc = 2.9 V, Ev = 1 000 lx Output current Io TYP. 20 µA Ev = 100 lx Specified temperature ― 0.25%/ °C -30 °C to +70 °C, Ev = 1 000 lx Output accuracy ― MAX. ±20% ― Peak sensitivity wavelength λ 555 nm ― Response time tr, tf Vcc = 2.9 V, Ev = 100 to 55 000 lx, MAX. 150 µs R = 27 kΩ Operating temperature Topr -40 to +85 °C ・ Mobile phones Outline Dimensions 0.42 0.4 1.0 0.4 ① Terminal layout ① GND ④ ② GND ③ Io ④ Vcc ② ③ 0.4 0.6 0.4 1.6 2.0 Unit: mm No mark n Under copyright laws, no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical for any purpose, in whole or in part, without the express written permission of SHARP. n SHARP reserves the right to make changes in the contents described herein at any time without notice. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device. 200802_6 SHARP CORPORATION Electronic Components & Devices Group May 2008