ø 线性led照明驱动 


ø 低功耗便携式照明设备

" /> qx7137是一种极低静态电流、低压差的 led恒流驱动器。 
qx7137只需要外接一个电阻和一个nmos 管,就可构成一个完整的 led恒流驱动电路,调节该外接电阻就可以调节输出电流,输出电流可调范围为100ma
到3.0a。 
qx7137 具有极低的静态功耗,特别适合手持 led照明驱动的应用。 
qx7137 内置了使能控制电路,可通过在en引脚加外部使能信号来控制led的开关。当 en接高电平时,drv引脚输出为高电平;当 en为低电平时,drv输出为低电平;en引脚不允许悬空。 
qx7137 采用 sot-23-5的封装形式。" />

qx7137-凯发网址登录

service hotline0755-88852177
your location:home » product » qx7137
qx7137

qx7137 is an led constant current driver with extremely low quiescent current and low dropout voltage.

qx7137 only needs an external resistor and an nmos tube to form a complete led constant current drive circuit. the output current can be adjusted by adjusting the external resistor. the adjustable range of the output current is 100ma

to 3.0a.

the qx7137 has extremely low static power consumption and is particularly suitable for handheld led lighting driver applications.

qx7137 has a built-in enable control circuit, which can control the led switch by adding an external enable signal to the en pin. when en is connected to a high level, the drv pin output is high; when en is low, the drv output is low; the en pin is not allowed to float.

qx7137 adopts sot-23-5 package.


ø power supply voltage: 2.7v ~ 5.5v

ø very low quiescent current: 26ua

ø output current: 100ma- 3.0a

ø output current accuracy: better than ± 5%

ø only need to connect a resistor and a mos tube

ø the voltage can be expanded to more than 400v, and the current can be expanded to 3.0a


stay tuned for updates!

ø linear led lighting driver


ø low-power portable lighting equipment