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AS3606 Datasheet(PDF) 22 Page - ams AG |
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AS3606 Datasheet(HTML) 22 Page - ams AG |
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22 / 71 page  www.austriamicrosystems.com Revision 1.03 21 - 70 AS3606 AS3607 2v2 Data Sheet - D e t a i l e d D e s c r i p t i o n - P o w e r M anage ment F uncti ons 8.3.5 Parameter VSUPx=3.6V, TA= 25ºC, unless otherwise specified. Figure 11. 30V Step-Up Performance Characteristics Table 7. DCDC Parameter Symbol Parameter Condition Min Typ Max Unit VSW High Voltage Pin Pin FBSU 0 30 V IVDD Quiescent Current Pulse Skipping mode 140 µA VFB Feedback Voltage, Transientt Pin CURR1 or CURR2 0 30 V Pin FBSU 0 5 V VFBSU Feedback Voltage, for voltage regulation Pin FBSU 1.2 1.25 1.3 V VCURR Feedback Voltage, for current sink regulation Pin CURR1 or CURR2 0.4 0.5 0.6 V IDCDC_FB Additional Tuning Current at Pin DCDC_FB and over voltage protection Adjustable by software using Register DCDC control1 1µA step size (0-31µA) VPROTECT = 1.25V + IDCDC_FB * R1 031 µA Accuracy of Feedback Current at full scale -6 6 % RSW Switch Resistance 1 Ω ILOAD Load Current @ 30V output voltage 0 50 mA FSW Fixed Switching Frequency SU_FREQU = 0 1 MHz COUT Output Capacitor Ceramic, ±20%. Use nominal 4.7µF capacitors to obtain at least 0.7µF under all conditions (voltage dependence of capacitors) 0.7 4.7 µF L Inductor Use inductors with small CPARASITIC (<100pF) for high efficiency 710 13 µH tMIN_ON Minimum On-Time Guaranteed per design 100 190 ns MDC Maximum Duty Cycle Guaranteed per design 84 90 % DCDC Boost 6 LEDs 55,00 60,00 65,00 70,00 75,00 80,00 85,00 90,00 1 10 100 Output Current [mA] |
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