RT8496

® RT8496 High Voltage High Current LED Driver Controller for Buck, Boost or Buck-Boost Topology General Description The RT8496 is a current-mode PWM controller designed to drive an external MOSFET for high current LED applications. With a current sense amplifier threshold of 315mV, the LED current is adjustable with one external current sense resistor. With the maximum operating input voltage of 36V and output voltage up to 150V, the RT8496 is ideal for Buck, Boost or Buck-Boost operation. With the switching frequency programmable over 100kHz to 1MHz, the external inductor and capacitors can be small while maintaining high efficiency. Dimming can be done by either analog or digital. The builtin clamping comparator and filter allow easy low noise analog dimming conversion from digital signal with only one external capacitor. The RT8496 is available in the SOP-14 package. Applications  General Industrial High Power LED Lighting  Desk Lights and Room Lighting  Building and Street Lighting  Industrial Display Backlight Features  High Voltage Capability : VIN Up to 36V, LED Sensing Threshold Common Mode Voltage Up to 150V  Buck, Boost or Buck-Boost Operation  Adjustable Switching Frequency  Easy Dimming Control : Analog or Digital Converting to Analog with One External Capacitor  Adjustable Soft-Start to Avoid Inrush Current  Adjustable Over-Voltage Protection  VIN Under-Voltage Lockout and Thermal Shutdown Ordering Information RT8496 Package Type S : SOP-14 Lead Pla...