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IR21591 from IOR,International Rectifier

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IR21591

Manufacturer: IOR

Dimming Ballast Control, Brown-out Protection, Programmable Preheat Time, 1.8us Deadtime in a 16-pin DIP package

Partnumber Manufacturer Quantity Availability
IR21591 IOR 1560 In Stock

Description and Introduction

Dimming Ballast Control, Brown-out Protection, Programmable Preheat Time, 1.8us Deadtime in a 16-pin DIP package The **IR21591** from International Rectifier is a high-performance, self-oscillating half-bridge driver designed for efficient power management in resonant converter applications. This integrated circuit (IC) combines a high-voltage level shifter with a robust gate driver, making it suitable for driving MOSFETs or IGBTs in half-bridge configurations.  

Key features of the IR21591 include adjustable dead-time control, which enhances efficiency by minimizing switching losses, and a built-in oscillator with programmable frequency settings for flexible design adaptation. Its high-side floating channel allows operation with bootstrap or external bias supply, ensuring reliable performance in various topologies.  

The device also incorporates protective functions such as under-voltage lockout (UVLO) for both high- and low-side drivers, safeguarding against unstable power conditions. With a wide operating voltage range and robust noise immunity, the IR21591 is well-suited for applications like switch-mode power supplies (SMPS), induction heating, and electronic ballasts.  

Engineers value the IR21591 for its integration of critical functions, reducing external component count and simplifying circuit design. Its reliability and performance make it a preferred choice for demanding power conversion systems requiring precise control and efficiency.

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