Various RT9619 free download

File name RT9619.PDF

RT9619/A Synchronous-Rectified Buck MOSFET Drivers General Description Features The RT9619/A is a high frequency, dual MOSFET driver Drives Two N-Channel MOSFETs specifically designed to drive two power N-Channel Adaptive Shoot-Through Protection MOSFETs in a synchronous-rectified buck converter Embedded Boot Strapped Diode topology. This driver combined with Richtek's series of Supports High Switching Frequency Multi-Phase Buck PWM controller form a complete core- Fast Output Rise Time voltage regulator solution for advanced micro-processors. Small SOP-8 Package Tri-State Input for Bridge Shutdown The RT9619/A drives both the lower/upper gate in a Supply Under Voltage Protection synchronous-rectifier bridge with 12V. This drive-voltage Upper MOSFET Direct Shorted Protection flexibility provides the advantage of optimizing applications RoHS Compliant and 100% Lead (Pb)-Free involving trade-offs between switching losses and conduction losses. Applications RT9619A has longer UGATE/LGATE deadtime which can Core Voltage Supplies for Desktop, Motherboard CPU drive the MOSFETs with large gate RC value, avoiding the High Frequency Low Profile DC-DC Converters shoot-through phenomenon. RT9619 is targeted to drive High Current Low Voltage DC-DC Converters low gate RC MOSFETs and performs better efficiency. The output drivers in the RT9619/A can efficiently switch Ordering Information power MOSFETs at frequency up to 500kHz. Switching RT9619/A frequency above 500kHz has to take into account the Package Type thermal dissipation of SOP-8 package. RT9619/A is S : SOP-8 capable to drive a 3nF load with a 30ns rise time. Operating Temperature Range RT9619/A implements bootstrapping on the upper gate with P : Pb Free with Commercial Standard G : Green (Halogen Free with Commer- an external capacitor and an embedded diode. This reduces cial Standard) implementation complexity and allows the use of higher Long Dead Time performance, cost effective N-Channel MOSFETs. Adapt