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.
? Wide input voltage range: 7V ~ 24V
? High efficiency: up to 95%
? CS current limiting protection voltage: 500mV
? FB current sampling voltage: 250mV
? Chip power supply undervoltage protection: 5.8V
? Adjustable off time
? Built-in compensation technology
? Built-in output OVP function
Typical application circuit diagram
Stay tuned for updates!
? LED light cup
? Battery-powered LED light string
? Flat panel display LED backlight
? Constant current charger control
? High-power LED lighting