The IR2104 is a high voltage, high-speed power MOSFET and IGBT driver with dependent high and low side referenced output channels. Proprietary HVIC and latch-immune CMOS technologies enable ruggedized monolithic construction. The logic input is compatible with standard CMOS or LSTTL output, down to 3.3V logic. The output drivers feature a high pulse current buffer stage designed for minimum driver cross-conduction. The floating channel can be used to drive an N-channel power MOSFET or IGBT in the high-side configuration which operates from 10 to 600 volts.

Features of IR2104

• High-Voltage Muscle: Handles voltages up to 600V, making it suitable for driving powerful MOSFETs in demanding circuits.
• Built-in Resilience: Tolerates negative voltage spikes and rapid voltage changes (dV/dt) for robust operation in harsh environments.
• Simplified High-Side Drive: Employs a floating channel designed for bootstrap operation, simplifying the control of the high-side MOSFET.
• Flexible Power Design: Accepts a wide gate drive supply range (10V-20V) to accommodate various power supply configurations.
• Safeguards and Protection: Features Undervoltage lockout (UVLO) to prevent malfunctions at low voltages and cross-conduction prevention logic to eliminate unwanted current flow.
• Optimized Switching: Internally set dead-time minimizes shoot-through current during MOSFET switching, improving efficiency.
• User-Friendly Control: Compatible with low-voltage control signals (3.3V, 5V, and 15V) and offers a shutdown input for safe system power down.
• Matched Propagation Delay: Ensures both MOSFETs switch simultaneously for optimal performance.
• Lead-Free Option Available: Caters to environmentally conscious designs.

Specifications of IR2104

• Supply Voltage Range: 10V to 20V (Gate Drive)
• Operational Voltage: Up to +600V
• Input Logic Compatibility: 3.3V, 5V, 15V
• Dead-Time: Internally Set
• For detailed specifications and pin configurations, refer to the IR2104 datasheet.

Benefits of  using IR2104

• Simplified Design: Reduces external components needed compared to discrete driver circuits, streamlining circuit design.
• Enhanced Efficiency: Optimizes gate drive for efficient MOSFET switching, minimizing power losses.
• Improved Reliability: Built-in protection features safeguard your circuit from potential damage caused by voltage fluctuations and improper switching.
• Versatile Applications: Suitable for various switching power supply topologies (Boost, Buck, Buck-Boost, Flyback, Forward) and motor control circuits.

Applications of IR2104

• DC-to-DC Converters: Step up (Boost), step down (Buck), or invert (Buck-Boost) DC voltage levels efficiently.
• AC-to-DC Converters (Offline SMPS): Convert AC mains voltage into regulated DC voltage for powering electronic devices.
• Motor Control Circuits: Drive motors like BLDC motors by controlling the switching sequence of MOSFETs.
• Solar Inverters: Convert DC voltage from solar panels into AC voltage for grid connection.

Additional Information

• While the IR2104 itself requires minimal settings, external components like bootstrap diodes, snubber circuits, and gate resistors are necessary for a complete power converter design.
• Basic knowledge of power electronics and switching power supply principles is recommended for successful implementation.

Conclusion:

The IR2104 is a powerful and user-friendly solution for driving high-power MOSFETs in various switching applications. It offers a comprehensive set of features to simplify design, ensure reliable operation, and optimize performance. By incorporating the IR2104 into your project, you can achieve efficient power conversion and control with greater confidence.