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MC33680FTB bảng dữ liệu(PDF) 4 Page - ON Semiconductor |
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MC33680FTB bảng dữ liệu(HTML) 4 Page - ON Semiconductor |
4 / 16 page MC33680 http://onsemi.com 4 PIN FUNCTION DESCRIPTION Pin No. Function Type/Direction Description 1 VMAINFB Analog / Input Feedback pin for VMAIN 2 VBAT Power Main battery supply 3 VBAT Power Main battery supply 4 VDD Analog / Output Connect to decoupling capacitor for internal logic supply 5 PDELAY Analog / Input Capacitor connection for defining Power–On signal delay 6 VREF Analog / Output Bandgap Reference output voltage. Nominal voltage is 1.25V 7 AGND Analog Ground 8 IREF Analog / Input Resistor connection for defining internal current bias and PDELAY current 9 LOWBATSEN Analog / Input Resistive network connection for defining low battery detect threshold 10 DGND Digital Ground 11 PORB CMOS / Output Active LOW Power–On reset signal 12 LOWBATB CMOS / Output Active LOW low battery detect output 13 LIBATON CMOS / Input microprocessor control signal for Lithium battery backup switch, the switch is ON when LIBATON=HIGH and LIBATCL=HIGH 14 LIBATCL CMOS / Input microprocessor control signal for Lithium battery backup switch, if it is HIGH, the switch is controlled by LIBATON, otherwise, controlled by internal logic 15 DGND Digital Ground 16 NC no connection 17 VAUXEN CMOS / Input VAUX enable, Active high 18 VAUXFBP Analog / Input Feedback pin for VAUX 19 NC no connection 20 VAUXFBN Analog / Input Feedback pin for VAUX 21 VAUXBDV Power VAUX BJT base drive circuit power supply 22 VAUXCHG Analog / Output test pin 23 VAUXBASE Analog / Output test pin 24 NC no connection 25 VAUXSW Analog / Output Collector output of the VAUX power BJT 26 VAUXEMR Analog / Output Emitter output of the VAUX power BJT 27 LIBATIN Analog / Input Lithium battery input for backup purposes 28 LIBATOUT Analog / Output Lithium battery output 29 NC no connection 30 VMAINGND Power Ground Ground for VMAIN low side switch 31 VMAINSW Analog / Input VMAIN inductor connection 32 VMAIN Analog / Output VMAIN output |
Số phần tương tự - MC33680FTB |
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Mô tả tương tự - MC33680FTB |
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