KCR405T

SEMICONDUCTOR TECHNICAL DATA LED Drive Application. FEATURES Supplies stable bias current even at low battery voltage. Ideal for stabilizing bias current of LEDs. Negative temperature coefficient protects LEDs against thermal overload. G A F 1 K KCR405T Constant-Current LED Driver Transistor E B K 6 2 5 4 D DIM A B C D E F G H I 3 MILLIMETERS _ 2.9 + 0.2 1.6+0.2/-0.1 _ 0.70 + 0.05 _ 0.4 + 0.1 2.8+0.2/-0.3 _ 1.9 + 0.2 0.95 _ 0.16 + 0.05 0.00-0.10 0.25+0.25/-0.15 0.60 0.55 G EQUIVALENT CIRCUIT 6 5 4 MARKING C L J K L J J H I 6 5 4 Lot No. Type Name AB 1 2 3 1. GND 2. Output Current 3. Output Current 4. Source Voltage 5. Output Current 6. Rext 1 2 3 TS6 MAXIMUM RATING (Ta=25 ) SYMBOL VS IO VO VR PD* Tj Tstg RATING 40 65 38 0.5 900 150 -55 150 UNIT V mA V V mW CHARACTERISTIC Source Voltage Output Current Output Voltage Reverse Voltage Between All Terminals Power Dissipation Junction Temperature Storage Temperature Range *Package mounted on a ceramic board (600㎟×0.8㎜) 2009. 7. 7 Revision No : 0 1/3 KCR405T ELECTRICAL CHARACTERISTICS (Ta=25 ) CHARACTERISTIC Collector-Emitter Breakdown Voltage Supply Current DC Current Gain Internal Resistor Output Current Voltage Drop (VS-VE) Lowest Sufficient Battery Voltage Overhead Output Current Change Versus Ta Output Current Change Versus VS SYMBOL BVCEO IS hFE Rint IO VDrop VSmin ΔIO/IO ΔIO/IO TEST CONDITION IC=1mA, IB=0 VS=10V IC=50mA, VCE=1V IRint=50mA VS=10V IO=50mA IO>18mA VS=10V VS=10V MIN. 40 340 100 13 45 0.75 TYP. 420 220 17 50 0.8 1.4 -0.15 1 MAX. 500 470 22 55 0.85 UNIT V ㎂ Ω mA V V %/K %/V APPLICATION CIRCUIT +VS 4 Rext 6 1 2, 3, 5 LED LED 2009. 7. 7 Revision No : 0 2/3 KCR405T IO - VS 100 2.0 56 Ohm IS - VS 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 50 0 0 5 10 15 20 25 30 35 40 45 50 80 C 20 C -40 C Output Current IO (mA) 82 Ohm open 10 VS-VO=1.4V 0 5 10 15 20 25 30 35 40 45 Source Voltage VS (V) Supply Current IS (mA) Source Voltage VS (V) IO - VS 100 100 IO - V S Output Current IO (mA) Output Current IO (mA) VS-VO=1.2V,2V VS-VO=1V -40 C 20 C 80 C 10 Ta=25 C 0 5 10 15 20 25 30 35 40 45 50 10 VS-VO=1.4V 0 5 10 15 20 25 30 35 40 45 50 Source Voltage VS (V) Source Voltage VS (V) IO - Rext 100 80 C 20 C -40 C Output Current IO (mA) 10 10 VS=10V VS-VO=1.4V 100 External Resistor Rext (Ω) 2009. 7. 7 Revision No : 0 3/3