آی سی MP24833

آی سی MP24833

کاتالوگ محصول : دیتاشیت آی سی MP24833

55V, 3A, White LED Driver

The MP24833-A is a 55V, 3A, white LED driver suitable for step-down, inverting step‑up/step-down, and step-up applications. The MP24833-A achieves 3A of output current with excellent load and line regulation over a wide input supply range. Current mode operation provides a fast transient response and eases loop stabilization. Full protection features include thermal shutdown, cycle­by­cycle peak current limiting, open-string protection, and output short-circuit protection (SCP). The MP24833-A incorporates both DC and PWM dimming into a single control pin. The separate input reference ground pin allows for direct enable and/or dimming control for a positive-to-negative power conversion.

Features:

• 3A Maximum Output Current 
• Unique Step-Up/Step-Down Operation (Buck-Boost Mode)
• Wide 4.5V-to-55V Operating Input Range for Step-Down Applications (Buck Mode) 
• 0.15Ω Internal Power MOSFET Switch 
• Fixed 210kHz Switching Frequency
• Analog and PWM Dimming
• 0.2V Reference Voltage
• 6μA Shutdown Mode
• No Minimum Number of LEDs Required
• Stable with Low ESR Output Ceramic Capacitors
• Cycle-by-Cycle Over-Current Protection (OCP)
• Thermal Shutdown Protection 
• Open-String Protection
• Output Short-Circuit Protection (SCP) 
• Available in a SOIC-8 EP Package