CPT-176 CPT-176 Series Application 1. Ambient light sensor. 2. Detection of ambient light for mobile telephones. 1. 2. 2.0 L x1.25 W x0.8 H mm /Electro-optical characteristics Item Symbol (Ta 25) Conditions 1 /Light current IC VCE=1.5V EV=100lx /Collector dark current ICEO VCE=5V VCE (Sat) IC=100A 1EV=100lx Saturated voltage between collector & emitter /Peak sensitive wave length p / /Rise time Tr VCE=5V IC=1mA Response Time /Fall time Tf RL=1000 /Spectral width of half value 1/2 - Min Typ Max Unit 20 - A nA - 35 50 5 100 0.1 0.4 V 580 50 50 70 - nm SEC SEC deg. 1 EV=CIEA/1 EV=Illuminance by CIE standard light source A. /Outline drawing Soldering terminal (0.4) Position of die C 2 1.2 (0.8) 1.25 E (0.25) 0.8 0.4 (0.625) Polarity Emitter mark /Unit : mm Characteristics 2 Ic-E Ic-E Characteristics Ta=25 Special Efficiency Characteristics 100 IRC-Ta IRC-Ta Characteristics Ic-VCE Ic-VCE Characteristics VCE=1.5V Ta=25C 175 400 Ta=25C VCE=5V 160 80 150 10 20 400 200 80 100 40 1 0 600 800 1000 1200 IRC (%) 40 120 Ic (A) Ic (A) 300 60 10 100 1000 0 E (mW/cm2) 2 4 6 8 10 12 120 100 75 50 -25 0 nm Wave length 14 0 25 50 75 100 T a(C) VCE (V) tr/rf-RL tr/tf-RL Characteristics 10000 Directive Characteristics Measuring circuit for response time tr tf (S) Relative efficiency 100 40 tf. tr 1000 VCC Input LED:CL-201IR 50 RL Output R 30 20 10 0 10 20 30 40 Ta=25C 50 60 60 70 70 100 90% tf 10 1 10 R(K) 100 Input pulse 10% tr Output pulse 80 80 90 90 100 0 100 115