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SN3350,pdf datasheet (40V LED
消耗积分:10 |
格式:rar |
大小:333 |
2010-01-07
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The SN3350 is a continuous mode inductive step-down
converter, designed for driving a single LED or multiple
series connected LEDs efficiently from a voltage source
higher than the LED voltage. The chip operates from an
input supply between 6V and 40V and provides an
externally adjustable output current of up to 750mA.
Depending upon supply voltage and external components,
this can provide up to 30 watts of output power.
The SN3350 includes an integrated output switch and a
high-side output current sensing circuit, which uses an
external resistor to set the nominal average output current.
Output current can be adjusted linearly by applying an
external control signal to the ADJ pin. The ADJ pin will
accept either a DC voltage or a PWM waveform. This will
provide either a continuous or a gated output current.
converter, designed for driving a single LED or multiple
series connected LEDs efficiently from a voltage source
higher than the LED voltage. The chip operates from an
input supply between 6V and 40V and provides an
externally adjustable output current of up to 750mA.
Depending upon supply voltage and external components,
this can provide up to 30 watts of output power.
The SN3350 includes an integrated output switch and a
high-side output current sensing circuit, which uses an
external resistor to set the nominal average output current.
Output current can be adjusted linearly by applying an
external control signal to the ADJ pin. The ADJ pin will
accept either a DC voltage or a PWM waveform. This will
provide either a continuous or a gated output current.
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