ø led灯杯


ø 电池供电的led灯串


ø 平板显示led背光


ø 恒流充电器控制


ø 大功率led照明

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qx5306是一款高效率、高精度的升压型大功率led灯恒流驱动控制芯片。

qx5306内置高精度误差放大器,固定关断时间控制电路,恒流驱动电路等,特别适合大功率、多个高亮度led灯串的恒流驱动。

qx5306通过调节外置的电流采样电阻,能控制高亮度led灯的驱动电流,使led灯亮度达到预期恒定亮度。在dim端加pwm信号,还可以进行led灯调光。

qx5306采用固定关断时间的控制方式,其关断时间可通过外部电阻设定,采用内置补偿技术,无需外部补偿电容,且内置输出过压保护功能,其过压保护点可通过外部电阻设定。

qx5306采用sop8封装。

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qx5306 升压型大功率led恒流驱动器-凯发网址登录

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your location:home » product » qx5306 boost high-power led constant current driver
qx5306 boost high-power led constant current driver

qx5306 is a high-efficiency, high-precision boost type high-power led lamp constant current drive control chip.

qx5306 has a built-in high-precision error amplifier, fixed off-time control circuit, constant current drive circuit, etc. it is especially suitable for constant current drive of high-power, multiple high-brightness led light strings.

qx5306 can control the drive current of high-brightness led lamp by adjusting the external current sampling resistor, so that the brightness of led lamp can reach the expected constant brightness. adding a pwm signal to the dim terminal can also perform dimming of the led light.

qx5306 adopts a fixed off-time control method. its off-time can be set by external resistors. it uses built-in compensation technology, no external compensation capacitors are needed, and it has built-in output overvoltage protection function. .

qx5306 is available in sop8 package.

ø wide input voltage range: 7v ~ 24v

ø high efficiency: up to 95%

ø cs current limiting protection voltage: 500mv

ø fb current sampling voltage: 250mv

ø chip power supply undervoltage protection: 5.8v

ø adjustable off time

ø built-in compensation technology

ø built-in output ovp function


typical application circuit diagram

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stay tuned for updates!

ø led light cup


ø battery-powered led light string


ø flat panel display led backlight


ø constant current charger control


ø high-power led lighting