[AP4405AEN] 5. Pin Configuration and Function5.1 Pin Configuration ・16-pin HWQFN TOP View 5.2 Function Pin # Name I/O Function 1 NC - Not Connected 2 OUT Output Logic output 3 NC - Not Connected 4 VDD Power Power supply 5 PMOSD Input/Output PMOS drain pin 6 NC - Not Connected 7 NMOSD Input/Output NMOS drain pin 8 VSS Ground Ground 9 POL Input Polarity cotrol pin. Do not set this pin in the floating state. 10 TEST1 - For test purposes. This pin should be connected to VSS. 11 NC - Not Connected 12 TEST2 - For test purposes. This pin should be connected to VSS. 13 TEST3 - For test purposes. This pin should be connected to VSS. 14 TEST4 - For test purposes. This pin should be connected to VSS. 15 TEST5 - For test purposes. This pin should be connected to VSS. 16 VIN Power Detection voltage input pin Connecting the exposed pad that is located on the - TAB - bottom of the package(EPAD) to VSS is recommended. The pad can be left floating if needed. 019001973-E-00 2019/3 - 4 -