STR2024

STR2000 Series Switching Type Features q q q q q Requires only 3 external components Small size and high efficiency Low switching noise Variable output voltage Use of SANKEN's semiconductor elements ensures high reliability Chopper • Self Oscillation Type Applications q For power supplies in office equipment such as electronic typewriters, printers, and copiers q For power supplies in VCRs and personal CB radios (fixed station) External View s Absolute Maximum Ratings (Ta=25°C) Parameter DC Input Voltage DC Output Current Power Dissipation Operating Temperature Storage Temperature Thermal Resistance ( junction-to-case) Symbol VIN IO PD Top Tstg Rth(j-c) 45 2.0 (pulse 3.0) 75 (TC=25°C) 15 (TC=100°C) –20 to +100 –20 to +125 1.25 Ratings STR2005 STR2012 STR2013 STR2015 STR2024 50 V A W °C °C °C/W Unit s Electrical Characteristics (Ta=25°C) Ratings Parameter Symbol STR2005 min DC Input Voltage Range VIN Condition Output Voltage VO 5.0 5.1 11 STR2012 STR2013 STR2015 STR2024 typ max 50 V Unit typ max min typ 40 18 max min 45 19 IO=1.0A 5.2 11.8 12.0 12.2 12.8 13.0 13.2 14.8 15.0 15.2 23.7 24.0 24.3 VIN=24V, IO=1.0A 85 85 VIN=27V, IO=1.0A 85 VIN=27V, IO=1.0A 60 60 VIN=35V, IO=1.0A 85 VIN=35V, IO=1.0A 60 mV % V typ max min 45 21 typ max min 45 30 Condition VIN=20V, IO=1.0A Efficiency η ∆VOLINE ∆VOLOAD RREJ Condition 72 Condition VIN=20V, IO=1.0A Line Regulation 50 VIN=24V, IO=1.0A 60 VIN=20 to 28V, IO=1.0A 100 VIN=24V, IO=0.5 to 1.5A 45 f=100 to 120Hz 45 100 Condition VIN=15 to 25V, IO=1.0A Load Regulation 100 VIN=23 to 31V, IO=1.0A VIN=30 to 40V, IO=1.0A 100 100 mV Condition VIN=20V, IO=0.5 to 1.5A Ripple Rejection 45 VIN=27V, IO=0.5 to 1.5A VIN=35V, IO=0.5 to 1.5A 45 45 dB Switching Frequency f 25 25 25 25 25 kHz Condition V IN=20V, I O=1.0A V IN =24V, I O=1.0A VIN=27V, IO=1.0A VIN=35V, IO =1.0A 9 STR2000 Series s Outline Drawing/Terminal Connections (unit:mm) 36.0±0.3 24.4±0.2 12.0±0.3 3 0° 6.0max. 2.0±0.2 Lot Number Type 21.2±0.3 φ 3.2±0.1 Plastic Mold Package Type Flammability: UL94V-0 Terminal Connections 4.7max. 20.0min. 3.0 +0.2 0.6 –0.1 2.0 1.0 –0.1 3.5 +0.2 q w e r t 5.45×4 5.45 q w e r t Switching Output (backside of case) Output Voltage Adjustment Ground Output Voltage Detection Input Weight: Approx. 14.5g s Block Diagram 5 R1 Tr1 1 s Ta-PD Characteristics 24 Without Mica 150×150×2(3.3°C/W) With Silicone Grease Heatsink: Aluminum Unit: mm R2 R3 M1 Tr2 R4 R5 R6 2 C1 C2 R8 R7 4 Power Dissipation PD(W) Ref. Voltage Circuit D1 20 16 100×100×2(5.2°C/W) 12 75×75×2(7.6°C/W) 8 Without heatsink 4 3 0 –20 0 60 80 20 40 Ambient Temperature Ta(°C) 100 s Standard External Circuit VIN 5 DC Input + – GND 4 1000µF 3 1000µF + 1 DC Output L s Variable Output Voltage Circuit Vout VIN 5 DC Input + 4 1000 µF VR2 GND 3 2 1 L VOUT VR1 + 1000 µF – DC Output GND GND Type STR2005 STR2012 STR2013 STR2015 STR2024 Inductance L 200µH 300µH 300µH 350µH 400µH VR1 : VOUT down VR2 : VOUT up 10 STR2000 Series Typical Characteristics (Ta=25°C) s STR2005 Rise Characteristics 10 Efficiency Characteristics 100 90 8 Output Voltage VO (V) 80 Efficiency η (%) 6 VIN=11V 20V 70 60 50 40 30 30V 40V IO=0A 1A, 2A 4 2 0 0 2 4 6 8 10 12 14 16 18 20 0 0 0.5 1.0 1.5 2.0 2.5 Input Voltage VIN (V) Output Current IO (A) s STR2012 Rise Characteristics 20 100 90 Output Voltage VO (V) Efficiency Characteristics 15 Efficiency η (%) IO=0A, 1A 2A 10 80 70 60 50 40 VIN=18V 24V 30V 35V 45V 40V 5 0 0 5 10 15 20 25 30 35 40 45 0 0 0.5 1.0 1.5 2.0 2.5 Input Voltage VIN (V) Output Current IO (A) s STR2024 Rise Characteristics 30 25 IO=0A, 1A 2A Efficiency η (%) Efficiency Characteristics 100 90 80 70 60 50 VIN=30V 35V 40V 45V 50V Output Voltage VO (V) 20 15 10 5 0 40 0 5 10 15 20 25 30 35 40 45 0 0 0.5 1.0 1.5 2.0 2.5 Input Voltage VIN (V) Output Current IO (A) 11