RT9605B Datasheet | Richtek

Description The RT9605B is a high frequency, triple-channel synchronous-rectified buck MOSFET driver specifically designed to drive six power N-MOSFETs. The part is promoted to pair with Richtek's multiphase buck PWM controller family for high-density power supply implementation. The output drivers of RT9605B can efficiently switch power MOSFETs at frequency 300k Hz typically. Operating in higher frequency should consider the thermal dissipation carefully. Each driver of RT9605B is capable to drive a 3n F load in 30/40ns rising/falling time with little propagation delay from input transition to the gate of the power MOSFET. The device implements bootstrapping on the upper gate with only an external capacitor and a diode required. This reduces circuit plexity and allows the use of higher performance, cost effective N-MOSFETs. All drivers incorporate adaptive shoot-through protection to prevent upper and lower MOSFETs from conducting simultaneously and shorting the input supply. The RT9605B also detects the fault condition during initial start-up prior to the multi-phase PWM controller takes control. As a result, the input supply will latch into the shutdown state. The RT9605B es to a small footprint package with VQFN-24L 4x4 package. Ordering Information Package Type QV : VQFN-24L 4x4 (V-Type) (Exposed Pad-Option 1) Note : Lead Plating System P : Pb Free G : Green (Halogen Free and Pb Free) Z : ECO (Ecological Element with Halogen Free and Pb free) Richtek products are :  Ro HS pliant and patible with the current require- ments of IPC/JEDEC J-STD-020.  Suitable for use in Sn Pb or Pb-free soldering processes. Features - Drive Six N-MOSFETs for 3-Phase Buck PWM Control - Adaptive Shoot-Through Protection - Support High Switching Frequency - Fast Output Rising/Falling Time - Propagation Delay 40ns - Tri-State Input for Bridge Shutdown - Upper MOSFET Direct Short Protection - Small 24-Lead VQFN Package - Ro HS pliant and 100% Lead (Pb)-Free Applications -...