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MB3883 Datasheet(Fiches technique) 5 Page - Fujitsu Component Limited. |
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5 page 
MB3883 5 (Continued) Pin No. Symbol I/O Descriptions OSC 25 RT Triangular wave frequency setting resistor connection pin. 26 CT Triangular wave frequency setting capacitor connection pin. 27 VB O Triangular wave oscillator regulator output pin. Control 1 SWOUT O Output switch control circuit output pin. 2 SWIN I Output switch control circuit input pin. 20 CTL I Power supply, CH6 control pin. “H” level : Power supply CH6 operating mode “L” level : Standby mode 21 CTL1, 2 I CH1, CH2 control pin. When CTL1, 2 pin = “H” level “H” level : CH1, CH2 operating mode “L” level : CH1, CH2 OFF mode 22 CTL3 I CH3 control pin. When CTL3 pin = “H” level “H” level : CH3 operating mode “L” level : CH3 OFF mode 23 CTL4 I CH4 control pin. When CTL4 pin = “H” level “H” level : CH4 operating mode “L” level : CH4 OFF mode 24 CTL5 I CH5 control pin. When CTL5 pin = “H” level “H” level : CH5 operating mode “L” level : CH5 OFF mode 18 CSCP Short protection circuit capacitor connection pin. 15 CS CH1to CH5 soft start circuit capacitor connection pin. Power 19 VCC Reference voltage and control circuit power supply pin. 42 VCC (O) Output circuit power supply pin. 16 VREF O Reference voltage output pin. 17 GND Ground pin. 44 GND (O) Output circuit ground pin. |
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