ø 汽车尾灯、雾灯、指示灯、应急灯、mr16及led 灯
qx5246f is a buck, constant current, high efficiency and high brightness led driver.
the qx5246f is particularly suitable for applications with a wide input voltage range. the input voltage range is from 5.5v to 36v, and the qx5246f has a high rejection ratio to the input voltage.
the qx5246f uses a built-in low on-resistance power switch tube, which simplifies the peripheral circuit of the chip. only a few external components are needed to achieve the step-down, constant current drive function, and the brightness control function can be realized through the dim pin.
qx5246f sets the output current through an external resistor. its built-in power mos tube, high-end current detection achieves a current accuracy of ± 4%.
due to the hysteresis control method, the qx5246f has a very fast response speed to load transients, and the maximum operating frequency can reach 1mhz.
qx5246f is available in esop8 package.
ø built-in 40v, 5a power mos
ø current accuracy: ± 4%
ø high efficiency: 95%
ø high-end current detection, constant current output
ø brightness control, maximum brightness control frequency: 5khz
ø hysteresis control: no compensation
ø maximum working frequency: 1mhz
ø 5v, 2ma on-chip voltage regulator
ø esop8 package
typical application circuit diagram
stay tuned for updates!
ø architectural, industrial and environmental lighting
ø car taillights, fog lights, indicator lights, emergency lights, mr16 and led lights