qx6103 is a high-precision step-down high-power led constant current driver chip. it is suitable for high-power led constant current driving power supply with input voltage within 100v.
patented high-end current detection, fixed frequency, current mode pwm control, with excellent linear regulation rate and load regulation rate.
the unique constant current control method adopted by the chip makes the led output current accuracy within ± 3%.
the frequency-shaking function integrated in the chip can reduce emi costs.
built-in loop compensation and slope compensation, no external compensation is required, and the application design is simple.
the typical working frequency of the chip is about 200khz.
qx6103 is available in sot23-5 package.
ø high-end current detection
ø output current: less than 3a
ø input voltage: 6 ~ 100v
ø led mean current control: good constant current effect
ø led output current accuracy: ± 3%
ø high efficiency: up to 95%
ø current mode pwm control
ø fixed working frequency
ø frequency jitter function
ø built-in loop compensation and slope compensation
ø undervoltage / overvoltage protection of chip power supply
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