IR21531S SOP8

The IR21531S is a high-voltage, high-speed power MOSFET and IGBT driver with a self-oscillating feature, designed for half-bridge configurations. This IC integrates a high-side and low-side driver, a bootstrap diode, and a self-oscillating circuit to drive N-channel MOSFETs or IGBTs efficiently. The IR21531S is ideal for applications such as electronic ballasts, switch-mode power supplies, and DC-DC converters. The device features protection functions including undervoltage lockout and deadtime control, enhancing its reliability. The IR21531S is available in an SOP8 package for easy integration.

Key Features:

• High-voltage half-bridge driver
• Self-oscillating circuit with frequency range up to 150kHz
• Integrated bootstrap diode
• High-side floating supply voltage up to 600V
• Low side and high side undervoltage lockout
• Deadtime control
• Matched propagation delay for high and low side
• Output source/sink current capability: 290mA/600mA
• Standard SOP8 package

Technical Specifications:

• High Side Floating Supply Voltage (Vb): 600V max
• High Side Output Voltage (Vs): Vb – 20V to Vb + 0.3V
• Low Side Output Voltage (Vcc): 10V to 15V
• High Side Output Voltage (Vho): 10V to Vcc
• Low Side Output Voltage (Vlo): 0V to Vcc
• Peak Output Current (Iout): 290mA source, 600mA sink
• Oscillator Frequency Range: Up to 150kHz
• Deadtime: 1.2µs typical
• Operating Temperature Range: -40°C to +125°C
• Package: SOP8

Applications:

• Electronic ballasts
• Switch-mode power supplies
• DC-DC converters
• Motor drives

Datasheet:
For detailed technical information, please refer to the IR21531S Datasheet.