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| 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 KCR402T 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 AA 1 2 3 1. GND 2. Output Current 3. Output Current 4. Source Voltage 5. Output Current 6. Rext TS6 1 2 3 MAXIMUM RATING (Ta=25 ) SYMBOL VS IO VO VR PD* Tj Tstg 0.8(R) ) 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 2009. 7. 7 Revision No : 0 1/3 KCR402T 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 IO/IO IO/IO TEST CONDITION IC=1mA, IB=0 VS=10V IC=50mA, VCE=1V IRint=20mA VS=10V, VOUT=8.6V IO=20mA IO>18mA VS=10V VS=10V MIN. 40 340 100 37 18 0.8 TYP. 420 220 44 20 0.85 1.4 -0.2 1 MAX. 500 470 53 22 0.9 mA V V %/K %/V UNIT V APPLICATION CIRCUIT +VS 4 Rext 6 1 2, 3, 5 LED LED 2009. 7. 7 Revision No : 0 2/3 KCR402T IO - VS 100 2.0 18 Ohm IS - V S 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0 5 10 15 20 25 30 35 40 45 50 80 C 20 C -40 C Output Current IO (mA) 27 Ohm 36 Ohm 82 Ohm open 10 VS-VO=1.4V 0 5 10 15 20 25 30 35 40 45 50 Source Voltage VS (V) Supply Current IS (mA) Source Voltage VS (V) IO - VS 100 25 IO - V S -40 C 20 C 80 C Output Current IO (mA) Output Current IO (mA) 20 15 10 5 0 VS-VO=1.2V,2V VS-VO=1V 10 Ta=25 C VS-VO=1.4V 0 5 10 15 20 25 30 35 40 45 50 0 5 10 15 20 25 30 35 40 45 50 Source Voltage VS (V) Source Voltage VS (V) IO - Rext 100 Output Current IO (mA) 80 C -40 C 20 C 10 10 VS=10V VS-VO=1.4V 100 External Resistor Rext () 2009. 7. 7 Revision No : 0 3/3 |
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