The IR21834S is a high voltage, high speed power MOSFET and IGBT driver featuring independent high and low side referenced output channels. Utilizing proprietary HVIC and latch immune CMOS technologies, this driver offers a robust and reliable solution for driving power devices in demanding applications. The 'S' designation indicates that it is a surface mount device.

Applications:

• Synchronous rectification
• DC-DC converters
• Half-bridge and full-bridge power supplies
• Motor control
• Class D amplifiers

Features:

• Floating channel designed for bootstrap operation up to 600V
• Tolerant to negative transient voltage dV/dt immune
• Gate drive supply range from 10V to 20V
• Logic input compatible with 3.3V and 5V logic
• Matched propagation delay for both channels
• Output in phase with input

Benefits:

• Simplified gate drive circuitry reduces component count and board space
• Improved system reliability with robust operation and negative voltage tolerance
• Optimized switching characteristics for enhanced efficiency
• Easy integration with digital control systems
• Reduced dead-time requirements due to matched propagation delay

Additional Details:

The IR21834S boasts a typical propagation delay of 120ns, enabling precise control over switching transitions. The floating channel allows for driving a high-side N-channel MOSFET or IGBT in bootstrap configuration. Its high dV/dt immunity prevents false triggering and ensures reliable operation in noisy environments. The device's wide operating temperature range, typically -40°C to +125°C, makes it suitable for harsh environments. The surface mount package is ideal for automated assembly and space-constrained applications. The device offers short deadtime, which improves efficiency by minimizing conduction losses.