International Rectifier (El Segundo, CA) introduced its integrated IRS29831 LEDrivIR control IC optimized for single stage flyback and buck-boost topologies used in LED drivers including LED bulb replacement, LED tube lighting and down lights. Employing accurate primary side power regulation, the IRS29831 integrates an LED driver control IC and power MOSFET using 700-V technology, and features high-voltage start up while maintaining a high power factor and low Total Harmonic Distortion (THD) for efficiency. IRS29831-based LED driver circuits also offer:
- Smooth, flicker-free dimming with triac based dimmers.
- Operation over a wide input voltage range.
- Protection features such as hiccup mode open-load/over-voltage protection, cycle-by-cycle primary over-current limiting, and output short circuit protection.
- Critical-conduction mode operation with discontinuous and burst modes at light load.
For more information, visit www.irf.com