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INFINEON IR21531DPBF Half-Bridge Gate Driver

The IR21531DPBF is a self-oscillating half-bridge gate driver integrated circuit (IC) that combines a high-voltage half-bridge gate driver with a front-end oscillator similar to the standard CMOS 555 timer. It offers enhanced functionality and ease of use, featuring a shutdown capability via the CT pin to disable both outputs through a low-voltage control signal. The device maintains consistent pulse widths once the rising under-voltage lockout threshold on VCC is reached, with improvements including reduced peak DI/DT and increased hysteresis of 1V. Additional features include true micro-power start-up, tighter dead-time control with low temperature coefficient, latch immunity, and phase synchronization with RT. It is suitable for applications such as lighting and power management.

Authorized Distributors
Source:Newark
Part No:IR21531DPBF
Stock:2990
Inv Date:05-29-2026
Price: Unit price: $2.3
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Source:DigiKey
Part No:IR21531DPBF
Stock:12813
Inv Date:05-29-2026
Price: Unit price: $4.02
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Source:DigiKey
Part No:IR21531DPBF
Stock:6377
Inv Date:05-29-2026
Price: Unit price: $2.14
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Part No:IR21531DPBF
Stock:0
Inv Date:05-30-2026
Price: Unit price: $1.74
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Part No:IR21531DPBF
Stock:1090
Inv Date:05-29-2026
Price: Unit price: $0.81
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INFINEON IR21531DPBF Half-Bridge Gate Driver Specifications:

  • Voltage Range: 0 - 600V
  • High side floating supply voltage: -0.3 to 625V
  • Output deadtime: 0.35 to 0.85 µs
  • Shutdown feature via CT pin, pulse widths stable after VCC lockout
  • Key features include low peak di/dt, increased hysteresis (1V), latch immunity, ESD protection on all leads
  • Oscillator frequency: 19.4 to 20 MHz, duty cycle: 48-52%
  • Maximum power dissipation: 1.0 W (DIP), 0.625 W (SOIC)
  • Junction temperature: -55°C to 150°C
  • Thermal resistance: 125°C/W (DIP), 200°C/W (SOIC)
  • Recommended Cr capacitor: 330 pF
  • Operating temperature: -40°C to 125°C
  • Lead temperature during soldering: 300°C
  • Suitable for industrial power applications, lighting, and motor control.

Buy the IR21531 DPBF – Reliable High-Voltage Half-Bridge Driver for Industrial Applications

Purchase the IR21531DPBF online today—engineered for high performance in power management, lighting, and industrial applications. This advanced self-oscillating gate driver offers micro-power start-up, precise deadtime control, and excellent noise immunity. Its robust design includes built-in shutdown, latch immunity, and comprehensive ESD protection, ensuring reliable operation in demanding environments. Perfect for switching power supplies, motor drives, and lighting control—order now to benefit from its superior efficiency, durability, and ease of integration in your industrial projects.

Get IR21531DPBF today—built for precision, high voltage handling, and long-lasting durability in power control solutions.

Frequently Asked Questions

Where can I buy INFINEON IR21531DPBF?

You can click on the BUY or RFQ button to purchase IR21531DPBF from an authorized INFINEON distributor.

How do I troubleshoot issues or seek technical support for part IR21531DPBF?

You can download the IR21531DPBF datasheet or visit the INFINEON website for support.

Who is the manufacturer of IR21531DPBF?

INFINEON

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