CXLE8192采用40V额定集成开关FET,是一个串联驱动LED的升压转换器。boost转换器以600kHz的固定开关频率运行,以减少输出纹波,提高转换效率,并允许使用小型外部组件。
默认的白色LED电流由外部传感器电阻RSET设置,反馈电压调节为200mV,如典型应用所示。在工作过程中,LED电流可以通过控制引脚利用PWM信号进行控制。脉冲宽度调制(PWM)信号的占空比决定反馈参考电压。在脉宽调制模式下,CXLE8192不会使LED电流爆裂;因此,它不会在输出电容器上产生可听的噪音。为了最大限度地保护,该器件具有集成的开放式LED保护,禁用CXEL8192,以防止输出电压超过IC在开放的LED条件下绝对最大额定电压。
[ CXLE8192 ]
产品技术资料帮助
查看全部>
7.相关产品
产品概述 返回TOP
产品特点 返回TOP
• Input Voltage Range: 2.7V to 20V
• 38V Open LED Protection
• 200mV Reference Voltage
• 500kΩ Pull-Low Resistor on CTRL Pin
• PWM Brightness Control
• 1kHz to 100kHz PWM Dimming Frequency Range
• Soft-Start Function
• Up to 90% Efficiency
• -40℃ to +85℃ Operating Temperature Range
• Available in Green TDFN-2×2-6L and TSOT-23-6
Packages
应用范围 返回TOP
Cellular Phones
Portable Media Players
Ultra Mobile Devices
GPS Receivers
White LED Backlighting for Media Form Factor Display
技术规格书(产品PDF) 返回TOP
需要详细的PDF规格书请扫一扫微信联系我们,还可以获得免费样品以及技术支持!
产品封装图 返回TOP
电路原理图 返回TOP
a
白光LED驱动器 |
||||||
Product |
LED Connection |
CH |
Iq(μA) |
SHDN Iq(μA) |
Dimming |
Package |
CXLE8196 |
Common Anode |
1 |
60 |
1 |
PWM |
SOT-23-6 |
Common Anode |
4 |
100 |
1 |
PWM |
TQFN-3x3-16L |
|
Common Anode |
3 |
100 |
1 |
PWM |
TQFN-3x3-16L |
|
Common Anode |
4 |
240 |
1 |
PWM |
SOT-23-6 |
|
Common Anode |
4 |
100 |
1 |
One-Wire |
TQFN-3x3-16L |
|
Common Anode |
4 |
550 |
5 |
One-Wire |
TQFN-3x3-16L TDFN-2x2-8L MSOP-8 |
|
Common Cathode |
4 |
300 |
10 |
One-Wire |
TQFN-3x3-16L |
|
Common Anode |
6 |
210 |
1 |
One-Wire |
TQFN-3x3-16L |
|
Common Cathode |
6 |
300 |
10 |
One-Wire |
TQFN-4x4-16L |
|
Common Anode |
6 |
155 |
2.5@VIN =4.2V |
PWM |
TQFN-3x3-16L |
|
Common Anode |
8 |
155 |
2.5@VIN = 4.2V |
PWM |
TQFN-3x3-20L |
|
Common Anode |
8 |
155 |
2.5@VIN =4.2V |
One-Wire |
TQFN-3x3-20L |
|
Common Anode |
1 |
200 |
1 |
PWM |
TSOT-23-6 |
|
Common Anode |
1 |
200 |
1 |
One-Wire |
TSOT-23-6 |
|
Common Anode |
1 |
400 |
1 |
PWM |
TDFN-2x2-6L TSOT-23-6 |
|
Common Anode |
1 |
45 |
1 |
One-Wire |
TDFN-2x2-8L |
|
Common Anode |
1 |
200 |
1 |
PWM |
TSOT-23-6 |
|
Common Anode |
1 |
400 |
1 |
PWM |
TDFN-2x2-6L TSOT-23-6 |
|
Common Anode |
1 |
200 |
1 |
One-Wire |
TDFN-2x2-8L |
|
Common Anode |
1 |
200 |
1 |
PWM |
TDFN-2x2-8L |
|
Common Anode |
1 |
220 |
1 |
PWM |
TDFN-2x2-6L |
◀ 上一篇:CXLE8191多功能恒流LED驱动器高效的升压转换器结构驱动高达38V的输出10个LED串联2.7V至5.5V输入电压260毫安的总电流每串3个系列LED
下一篇▶:CXLE8193多功能恒流LED驱动器高效的升压转换器结构高效的PWM转换器低200毫伏反馈电压单线调光接口38V开放式LED保护宽输出范围最多10个串联LED
|