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RT8450 pdf datasheet (High Vol

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  • 上传时间:2021-08-30
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  • 标      签: driver LED

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The RT8450 is a current mode PWM regulator for LEDdriving applicaTIons. With an 1.5A switch on board and wideinput (4.5V to 40V) and/or output (up to 60V)ranges theRT8450 can operate in any of the three common topologies: Buck, Boost or Buck-Boost.With a 1MHz operaTIng frequency, the external PWMinductor and input/output capacitors can all be small. Highefficiency is achieved with a 190mV current sensing.Dimming can be either analog or PWM digital, an uniquebuilt-in clampping comparator and filtering resistor alloweasy low noise analog dimming conversion from PWMsignal with only one external capacitor.The RT8450 is available in a TSSOP-16 (Exposed Pad)and WDFN-12L 3x3 power packages.
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