전자부품 데이터시트 검색엔진 |
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MB39A123 데이터시트(PDF) 6 Page - Fujitsu Component Limited. |
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MB39A123 데이터시트(HTML) 6 Page - Fujitsu Component Limited. |
6 / 44 page MB39A123 6 ■ BLOCK DIAGRAM −INE2 OUT2 VIN (5 V-11 V) OSC 0.9 V 0.4 V Power ON/OFF CTL VR 1.0 V/1.23 V VREF VCC bias 2.0 V CTL GND CS2 FB2 DTC2 −INE3 OUT3 CS3 FB3 DTC3 −INE5 OUT5 CS5 FB5 DTC5 1 V −INE6 CS6 FB6 DTC6 GNDO OUT6 VREF SCP Comp. −INS CSCP RT CT VREF Drive3 Error Amp3 1.23 V PWM Comp.3 <<ch.3>> VREF UVLO2 Drive6 Error Amp6 PWM Comp.6 <<ch.6>> N-ch VREF −INE1 VCCO OUT1-1 Vo1 (1.2 V) CS1 FB1 A Error Amp1 (1.0 V) PWM Comp.1 <<ch.1>> P-ch VREF 1.1 µA Drive2 Error Amp2 1.23 V PWM Comp.2 <<ch.2>> VREF Drive5 Error Amp5 1.23 V PWM Comp.5 <<ch.5>> VREF N-ch 1.23 V F Vo6-2 (5.0 V) Vo6-1 (15 V) SCP UVLO1 1.1 µA 1.1 µA 1.1 µA 1.1 µA N-ch OUT1-2 P-ch P-ch Vo2 (2.5 V) B Vo3 (3.3 V) C CHCTL CTL1 CTL2 CTL3 41 40 42 43 33 46 47 45 32 21 20 22 30 26 27 25 28 29 48 1 10 8 13 9 12 11 38 39 37 36 35 44 23 24 34 3 4 2 CTL4 5 CTL5 6 −INE4 OUT4 D CS4 FB4 DTC4 Drive4 Error Amp4 1.23 V PWM Comp.4 <<ch.4>> VREF 1.1 µA P-ch Vo4 ( −7.5 V) D 16 17 15 31 14 << 48 Pin >> PKG:BCC-48++ :LQFP-48P 7 CTL6 19 18 −INA OUTA INVAmp E Vo5 (15 V) A B C E F − + + − + + − + − + + − + + − + + − + + − + − + − + + − + + − + + − + + − + + Reference voltage 1.0 V ± 1 % Reference voltage 1.23 V ± 1 % Reference voltage 1.23 V ± 1 % Reference voltage 1.23 V ± 1 % Reference voltage 1.23 V ± 1 % Reference voltage 1.23 V ± 1 % Io = 300 mA at VCCO = 7 V Io = 300 mA at VCCO = 7 V Io = 300 mA at VCCO = 7 V Io = 300 mA at VCCO = 7 V Io = 300 mA at VCCO = 7 V H:ON (Power ON) L:OFF(Standby mode) VTH = 1.0 V Transformer Step-down (Synchronous Rectification) Step-down Step-up Inverting Step-down Precision ± 1 % Precision ± 0.8 % Precision ± 0.5 % (2.0 MHz) Max Duty 92 % ± 5 % Max Duty 92 % ± 5 % Max Duty 92 % ± 5 % H:UVLO release H:at SCP Dead Time (td = 50 ns) L priority VREF L priority VREF L priority VREF L priority VREF L priority VREF L priority L priority L priority L priority L priority L priority Charge current 1 µA H:ON L:OFF VTH = 1.0 V Io = 300 mA at VCCO = 7 V Io = 300 mA at VCCO = 7 V F Error Amp power supply SCP Comp. power supply Error Amp reference Short-circuit detection signal (L: at short-circuit) Drive1-1 Drive1-2 Max Duty 92 % ± 5 % Max Duty 92 % ± 5 % |
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