产品信息查询
产品 新闻
首页 > 产品中心 > LED驱动电路 > LED背光 > 升压型LED背光 >串联驱动10个LED的38V开放式LED保护升压boost转换器以1.2MHz固定开关频率开关电流限制1.1A脉宽调制亮度控制CXLE8189
串联驱动10个LED的38V开放式LED保护升压boost转换器以1.2MHz固定开关频率开关电流限制1.1A脉宽调制亮度控制CXLE8189
0

CXLE8189采用40V额定集成开关FET,是一个升压转换器,可串联驱动多达10个LED。boost转换器以1.2MHz固定开关频率运行,开关电流限制为1.1A,允许在普通照明中使用高亮度LED。
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的电流可以通过控制管脚的PWM信号来控制,脉冲宽度调制(PWM)信号决定反馈的参考电压。在脉宽调制模式下,CXLE8189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CXL8189,以防止输出电压超过IC的绝对最大额定电压在开放的LED条件

串联驱动10个LED的38V开放式LED保护升压boost转换器以1.2MHz固定开关频率开关电流限制1.1A脉宽调制亮度控制CXLE8189
产品手册
产品订购

产品订购

产品简介

目录

1.产品概述       2.产品特点     m8i嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)m8i嘉泰姆

5.产品封装       6.电路原理图  m8i嘉泰姆

7.相关产品m8i嘉泰姆

   产品概述 返回TOPm8i嘉泰姆


With a 40V rated integrated switch FET, the CXLE8189 is a boost converter that drives up to 10 LEDs in series. The boost converter runs at a 1.2MHz fixed switching frequency with 1.1A switch current limit, and allows for the use of a high brightness LED in general lighting.The default white LED current is set with the external sensor resistor RSET, and the feedback voltage is regulated to 200mV, as shown in the typical application. During the operation, the LED current can be controlled using PWM signal through the CTRL pin, the pulse width modulation (PWM) signal determines the feedback reference voltage. In PWM mode, the CXLE8189 does not burst the LED current; therefore, it does not generate audible noises on the output capacitor. For maximum protection, the device features integrated open LED protection that disables the CXLE8189 to prevent the output voltage from exceeding the IC’s absolute maximum voltage ratings during open LED conditions.The CXLE8189 is available in Green TDFN-2×2-6L and TSOT-23-6 packages. It operates over an ambient temperature range of -40℃ to +85℃.

   产品特点 返回TOPm8i嘉泰姆


• Input Voltage Range: 3V to 20Vm8i嘉泰姆
• 38V Open LED Protection for 10 LEDsm8i嘉泰姆
• 200mV Reference Voltagem8i嘉泰姆
• 500kΩ Pull-Low Resistor on CTRL Pinm8i嘉泰姆
• 1.1A Switch FET with 1.2MHz Switching Frequencym8i嘉泰姆
• PWM Brightness Controlm8i嘉泰姆
• 1kHz to 100kHz PWM Dimming Frequency Rangem8i嘉泰姆
• Soft-Start Functionm8i嘉泰姆
• Up to 90% Efficiencym8i嘉泰姆
• -40℃ to +85℃ Operating Temperature Rangem8i嘉泰姆
• Available in Green TDFN-2×2-6L and TSOT-23-6m8i嘉泰姆
   Packagesm8i嘉泰姆

   应用范围 返回TOPm8i嘉泰姆


High Brightness LED Lightingm8i嘉泰姆
White LED Backlighting for Media Form Factor Displaym8i嘉泰姆

   技术规格书(产品PDF) 返回TOP m8i嘉泰姆


     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m8i嘉泰姆

 QQ截图20160419174301.jpgm8i嘉泰姆

产品封装图 返回TOPm8i嘉泰姆


blob.pngm8i嘉泰姆

电路原理图 返回TOPm8i嘉泰姆


 m8i嘉泰姆

a

相关芯片选择指南 返回TOP                                     更多同类产品......


白光LED驱动器m8i嘉泰姆

Productm8i嘉泰姆

LED Connectionm8i嘉泰姆

CHm8i嘉泰姆

Iq(μA)m8i嘉泰姆

SHDN Iq(μA)m8i嘉泰姆

Dimmingm8i嘉泰姆

 Packagem8i嘉泰姆

CXLE8196m8i嘉泰姆

Common Anodem8i嘉泰姆

1m8i嘉泰姆

60m8i嘉泰姆

1m8i嘉泰姆

PWMm8i嘉泰姆

SOT-23-6m8i嘉泰姆

CXLE8176m8i嘉泰姆

Common Anodem8i嘉泰姆

4m8i嘉泰姆

100m8i嘉泰姆

1m8i嘉泰姆

PWMm8i嘉泰姆

TQFN-3x3-16Lm8i嘉泰姆

CXLE8177m8i嘉泰姆

Common Anodem8i嘉泰姆

3m8i嘉泰姆

100m8i嘉泰姆

1m8i嘉泰姆

PWMm8i嘉泰姆

TQFN-3x3-16Lm8i嘉泰姆

CXLE8178m8i嘉泰姆

Common Anodem8i嘉泰姆

4m8i嘉泰姆

240m8i嘉泰姆

1m8i嘉泰姆

PWMm8i嘉泰姆

SOT-23-6m8i嘉泰姆

CXLE8179m8i嘉泰姆

Common Anodem8i嘉泰姆

4m8i嘉泰姆

100m8i嘉泰姆

1m8i嘉泰姆

One-Wirem8i嘉泰姆

TQFN-3x3-16Lm8i嘉泰姆

CXLE8180m8i嘉泰姆

Common Anodem8i嘉泰姆

4m8i嘉泰姆

550m8i嘉泰姆

5m8i嘉泰姆

One-Wirem8i嘉泰姆

TQFN-3x3-16L TDFN-2x2-8L MSOP-8m8i嘉泰姆

CXLE8181m8i嘉泰姆

Common Cathodem8i嘉泰姆

4m8i嘉泰姆

300m8i嘉泰姆

10m8i嘉泰姆

One-Wirem8i嘉泰姆

TQFN-3x3-16Lm8i嘉泰姆

CXLE8182m8i嘉泰姆

Common Anodem8i嘉泰姆

6m8i嘉泰姆

210m8i嘉泰姆

1m8i嘉泰姆

One-Wirem8i嘉泰姆

TQFN-3x3-16Lm8i嘉泰姆

CXLE8183m8i嘉泰姆

Common Cathodem8i嘉泰姆

6m8i嘉泰姆

300m8i嘉泰姆

10m8i嘉泰姆

One-Wirem8i嘉泰姆

TQFN-4x4-16Lm8i嘉泰姆

CXLE8184m8i嘉泰姆

Common Anodem8i嘉泰姆

6m8i嘉泰姆

155m8i嘉泰姆

2.5@VIN =4.2Vm8i嘉泰姆

PWMm8i嘉泰姆

TQFN-3x3-16Lm8i嘉泰姆

CXLE8185m8i嘉泰姆

Common Anodem8i嘉泰姆

8m8i嘉泰姆

155m8i嘉泰姆

2.5@VIN = 4.2Vm8i嘉泰姆

PWMm8i嘉泰姆

TQFN-3x3-20Lm8i嘉泰姆

CXLE8186m8i嘉泰姆

Common Anodem8i嘉泰姆

8m8i嘉泰姆

155m8i嘉泰姆

2.5@VIN =4.2Vm8i嘉泰姆

One-Wirem8i嘉泰姆

TQFN-3x3-20Lm8i嘉泰姆

CXLE8187m8i嘉泰姆

Common Anodem8i嘉泰姆

1m8i嘉泰姆

200m8i嘉泰姆

1m8i嘉泰姆

PWMm8i嘉泰姆

TSOT-23-6m8i嘉泰姆

CXLE8188m8i嘉泰姆

Common Anodem8i嘉泰姆

1m8i嘉泰姆

200m8i嘉泰姆

1m8i嘉泰姆

One-Wirem8i嘉泰姆

TSOT-23-6m8i嘉泰姆

CXLE8189m8i嘉泰姆

Common Anodem8i嘉泰姆

1m8i嘉泰姆

400m8i嘉泰姆

1m8i嘉泰姆

PWMm8i嘉泰姆

TDFN-2x2-6L TSOT-23-6m8i嘉泰姆

CXLE8190m8i嘉泰姆

Common Anodem8i嘉泰姆

1m8i嘉泰姆

45m8i嘉泰姆

1m8i嘉泰姆

One-Wirem8i嘉泰姆

TDFN-2x2-8Lm8i嘉泰姆

CXLE8191m8i嘉泰姆

Common Anodem8i嘉泰姆

1m8i嘉泰姆

200m8i嘉泰姆

1m8i嘉泰姆

PWMm8i嘉泰姆

TSOT-23-6m8i嘉泰姆

CXLE8192m8i嘉泰姆

Common Anodem8i嘉泰姆

1m8i嘉泰姆

400m8i嘉泰姆

1m8i嘉泰姆

PWMm8i嘉泰姆

TDFN-2x2-6L TSOT-23-6m8i嘉泰姆

CXLE8193m8i嘉泰姆

Common Anodem8i嘉泰姆

1m8i嘉泰姆

200m8i嘉泰姆

1m8i嘉泰姆

One-Wirem8i嘉泰姆

TDFN-2x2-8Lm8i嘉泰姆

CXLE8194m8i嘉泰姆

Common Anodem8i嘉泰姆

1m8i嘉泰姆

200m8i嘉泰姆

1m8i嘉泰姆

PWMm8i嘉泰姆

TDFN-2x2-8Lm8i嘉泰姆

CXLE8195m8i嘉泰姆

Common Anodem8i嘉泰姆

1m8i嘉泰姆

220m8i嘉泰姆

1m8i嘉泰姆

PWMm8i嘉泰姆

TDFN-2x2-6Lm8i嘉泰姆