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RT9300/RT9300A/RT9300B pdf dat
消耗积分:3 |
格式:rar |
大小:333 |
2008-12-11
王刚
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The RT9300A/B low-dropout bias supply for white LEDs
is a high-performance alternative to the simple ballast
resistors used in conventional white LED designs. The
RT9300A/B uses a internal resistor to set the bias
current for four LEDs, which are matched to 3%. The
RT9300A/B's advantages over ballast resistors include
much lower bias variation with supply voltage variation,
significantly lower dropout voltage, and in some applications,
significantly improved efficiency. The RT9300A/B requires
a 60/45mV dropout at a 20/15mA load on each output to
match the LED brightness.
is a high-performance alternative to the simple ballast
resistors used in conventional white LED designs. The
RT9300A/B uses a internal resistor to set the bias
current for four LEDs, which are matched to 3%. The
RT9300A/B's advantages over ballast resistors include
much lower bias variation with supply voltage variation,
significantly lower dropout voltage, and in some applications,
significantly improved efficiency. The RT9300A/B requires
a 60/45mV dropout at a 20/15mA load on each output to
match the LED brightness.
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