概述 特点
QX4115是一款、恒流、高效率 >最大输出电流: 1.2A
的高亮度LED驱动器。QX4115特别适合 >宽输入电压范围: 8V~30V宽输入电压和宽负载范围的应用，输入电
压范围从8V到30V,负载输出电压可从 >高电流精度:士3%3V到30V。通过外接电阻可以设定输出电 >高效率: 97%流，输出电流可达1.2A，且恒流精度高。
>负载开路和短路保护QX4115只需很少的外接元件就可实
> PWM和线性调光现、恒流驱动功能，并可以通过DIM
引脚实现PWM和线性调光功能，且当 >滞环控制:无需补偿VoM=0V时，整个芯片关断进入低功耗待 >最高工作频率: 1MHz机模式。另外，当DIM脚接NTC电阻到
地可实现输出LED过温电流补偿功能。 >内置过温电流补偿控制
由于采用滞环控制方式，QX4115对 >DIM脚接NTC电阻到地实现过温电流负载瞬变具有非常快的响应速度，最高工 补偿
作频率可达1MHz。 》DIM 脚接电阻到地实现亮度调节
QX4115内置负载开路和负载短路保 应用领域护功能，有效地保护恒流控制系统。
QX4115采用SOT89-5封装。 >建筑、工业、环境照明
>汽车尾灯、雾灯、指示灯、应急灯、
MR16及LED灯
联系电话邱R
13682379002
13823525974
QQ3002513032
An overview of the characteristics of
QX4115 is A step-down maximum output current, constant current, high efficiency > : 1.2 A
The high brightness LED drive. QX4115 is especially suitable for > wide input voltage range: 8 v ~ 30 v wide input voltage and load wide range of applications, the input power
Pressure range from 8 v to 30 v, output voltage load from > high current precision: 3 v and 3% to 30 v. Through the external resistors can set the output electricity > high efficiency, flow, 97% output current of 1.2 A, and high precision of constant current.
> load open circuit and short circuit protection QX4115 little external components can be real
> PWM and linear dimming step-down, constant current drive function, and can be DIM
Pin function of PWM and linear dimming and when > hysteresis control: without compensation VoM = 0 v, the whole chip off into the highest working frequency low power stay > : 1 MHZ machine model. In addition, when receive the NTC resistance to DIM feet
To output LED current temperature compensation function can be realized. > the built-in thermal current compensation control
With hysteresis control mode, QX4115 > DIM the feet after NTC resistance to achieve thermal load transient current has very fast response speed, high compensation
As a frequency of 1 MHZ. " DIM foot after resistance to achieve brightness control
QX4115 built-in open load and load short circuit application field protection function, effectively protect the constant current control system.
QX4115 the SOT89-5 encapsulation. > construction, industrial, lighting environment
> car tail lights, fog lights, lights, emergency lights,
MR16 and LED lights
Contact the high R
13682379002
13823525974
QQ3002513032
