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MP24881

60V, 1.1A, Synchronous Step-Down LED Driver with PWM and Analog Dimming Function; ? Wide 10V to 60V Operating Input Voltage (VIN) Range\n? Up to 1.1A of LED Current (ILED)\n? Synchronous Step-Down Converter\n? Internal 100mΩ High-Side MOSFET (HS-FET)\n? Internal 110mΩ Synchronous Rectifier (SR)\n? Hysteretic Control\n? Up to 2MHz Switching Frequency (fSW)\n? 100mV Reference Voltage (VREF)\n? LED Common Cathode Connection\n? Excellent Pulse-Width Modulation (PWM) Dimming Performance:? Up to 25kHz PWM Dimming Frequency\n? 20000:1 Wide Dimming Range\n\n? Down to 0.1% Dimming Depth\n? All PWM Signal-Controlled Hybrid Dimming\n? High-Side (HS) Over-Current Protection (OCP)\n? Current-Sense (CS) Short Protection\n? Low-Side (LS) Reverse OCP\n? Thermal Shutdown\n? Available in an SOIC-8EP Package\n;

The MP24881 is a 60V, monolithic, synchronous step-down LED driver with an integrated N-channel MOSFET and rectifier. It delivers up to 1.1A of continuous LED current (ILED) to high-power LEDs. The wide 10V to 60V input voltage (VIN) range accommodates a variety of step-down lighting applications. Hysteretic current mode minimizes the loop compensation design and achieves fast transient response, which makes the 25kHz pulse-width modulation (PWM) dimming frequency possible.\n\n The MP24881 supports analog dimming with a PWM or analog signal input, which helps remove the flicker caused by the PWM frequency (fPWM). The separated PWM and analog dimming input port enables all PWM signal-controlled hybrid dimming. The hybrid dimming depth can reach as low as 0.1%.\n\n Full protections include current-sense (CS) short protection, low-side (LS) reverse over-current protection (OCP), high-side (HS) OCP, and thermal shutdown.\n\n The MP24881 is available in an SOIC-8EP package.\n\n