IR2104 Half Bridge Gate Driver

The IR2104 is a high-performance half-bridge gate driver IC designed to drive both high-side and low-side N-channel MOSFETs or IGBTs in applications such as motor control, switching power supplies, and inverter circuits. This integrated driver eliminates the complexity of discrete bootstrap circuits by incorporating internal level-shifting and timing protection. The IC provides independent high and low side referenced output channels with fast switching capabilities and high dV/dt immunity.

Featuring bootstrap operation for the high-side driver, the IR2104 enables efficient N-channel MOSFET control in half-bridge configurations without requiring isolated power supplies. The matched propagation delays minimize cross-conduction risks, while integrated shoot-through protection prevents simultaneous conduction of both switches. With supply voltage range up to 600V and gate drive capability of 10-20V, this driver is ideal for DC motor controllers, brushless motor drives, Class-D amplifiers, buck/boost converters, and H-bridge applications. Compatible with logic-level and standard gate threshold MOSFETs for versatile power switching solutions.

Specification :

• Part Number: IR2104
• Driver Type: Half-Bridge Gate Driver
• Package: 8-Pin DIP (Dual In-line Package)
• High-Side Voltage Range: Up to 600V
• Logic Supply Voltage (Vcc): 10V – 20V
• Logic Input Voltage: 5V – 20V (TTL/CMOS compatible)
• Gate Drive Supply Voltage (Vbs): 10V – 20V
• Output Source Current: 130mA / 270mA (typ/max)
• Output Sink Current: 270mA / 520mA (typ/max)
• Propagation Delay: 120ns typical (HIN/LIN to output)
• Matching Delay: 10ns typical (high-side to low-side)
• Rise Time: 20ns typical
• Fall Time: 15ns typical
• Shoot-Through Protection: Built-in deadtime