Datasheet APR348 (Diodes) - 2

APR348 Typical Applications Circuit VOUT VOUT Q2 APR348 C2 C2 VDET VCC APR348 Rx VDD DRISR VDET R1 DRISR GND GND VDD C1 VCC Rx R1 T C1 Q1 C Q1 Q2 U D O R
High-Side Application Low-Side Application
P W Pin Descriptions E N Pin Number Pin Name Function
1 VCC Internal Linear Regulator Input 2 GND Ground, also used as FET source sense reference for VDET 3 Rx Programming for Turn-On Signal by Sensing VDS Slew Rate Linear Regulator Output. It provides bias voltage for the internal logic circuit and the MOSFET driver. 4 VDD Connect this pin to a capacitor. 5 DRISR Synchronous Rectification MOSFET Gate Drive 6 VDET Synchronous Rectification MOSFET Drain Voltage Sense Input
Functional Block Diagram
VCC 1 VDET VCC Power Power Management Management VDET 6 4 VDD Power VREF/ ON/OFF IBIAS VDET Sensing 5 Control DRISR SR 3 Core Driver Rx 2 GND APR348 2 of 9 December 2019 Document number: DS42016 Rev. 3 - 2
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