Richtek RT9629AZQW

Полумост64,5 В ~ 13,2 В

Overview

The RT9629AZQW 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 RT9629AZQW can efficiently switch power MOSFETs at frequency 300kHz typically. Operating in higher frequency should consider the thermal dissipation carefully. The device implements bootstrapping on the upper gate with only an external capacitor and a diode required. This reduces circuit complexity 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 RT9629AZQW has also detected the fault condition during initial start-up before the multi-phase PWM controller takes control. As a result, the input supply will latch into the shutdown state. The RT9629AZQW comes in a small footprint package with WQFN-24L 5x5 package.

Features

Applications

• Broadcast equipment
• Active filtering
• Head-up and Head mounted displays
• High current laser/LED systems
• LCD/LCoS/DLP portable and embedded pico projectors
• Multicolor LED/laser displays
• Smart Phones
• Portable Navigation Devices
• Portable Media Players
• Motor Controls