Cxle8698 is a continuous current mode buck constant current driver chip. When the input voltage is higher than the LED voltage, it can be effectively used to drive one or more LEDs in series. The input voltage range is 6V to 55v, and the maximum output current is 1.2A.
Cxle8698 has built-in power switch and high-end current detection circuit, and uses external resistance to set LED current. It can receive analog dimming and PWM dimming through adj pin. When adj is less than 0.2V, it will enter low-power standby mode.
Cxle8698 has built-in over temperature automatic regulation function. When overheat of driving power is detected, the output current is automatically reduced gradually, so as to control the output power and temperature rise, so as to keep the temperature of driving power within the set value range, so as to improve the reliability of the system. The threshold value of temperature regulation inside the chip is set to 150 ℃

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[ CXLE8698 ]"
目录
1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载(PDF文档)
一.产品概述
CXLE8698是一款连续电流模式的降压恒流驱动芯片。在输入电压高于 LED电压时,可以有效地用于驱动一颗或多颗串联LED。输入电压范围从6V到 55V,输出电流最大可达 1.2A。
CXLE8698内置功率开关和高端电流检测电路,使用外部电阻设置LED电流,可通过ADJ引脚接收模拟调光和 PWM 调光,当 ADJ小于 0.2V后将进入低功耗待机模式。
CXLE8698内置过温自动调节功能。当检测到驱动电源过热时,即自动逐渐减小输出电流,从而控制输出功率和温升,使驱动电源温度保持在设定值范围内,从而提高系统的可靠性。芯片内部过温调节阈值设定为 150℃。
二.产品特点
Ø外围简单,元器件少
Ø宽的电压输入范围:从6V到55V
Ø高达1.2A的恒流输出
Ø单一管脚实现开/关、模拟调光和PWM调光
ر2%的电流输出精度
Ø内置VIN电压线性补偿
Ø效率高达97%
Ø最大1MHz开关频率
Ø固有的LED开路/短路保护
Ø过温自动调节功能
ØSOT89-5封装形式,绿色环保封装
三.应用范围
Ø车载 LED灯
Ø低压LED射灯代替卤素灯
Ø低压LED工业用灯
ØLED备用灯
ØLED信号灯
ØLED舞台灯
四.技术规格书(产品PDF)
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!
五.产品封装图
六.电路原理图
七.相关芯片选择指南 更多同类产品......
降压恒流驱动系列 |
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型号 |
输入电压 |
输出电压 |
开关频率 |
最大输出电流 |
功能介绍 |
封装 |
2.5V~100V |
2.5V~80V |
300K |
5A |
外置稳压,外置MOS,调光 |
SOT23-6 |
|
6V~60V |
55V |
300K |
1.2A |
内置MOS,PWN调光,线性调光,过温保护短路保护开路保护 |
SOT89-5 |
|
8V~100V |
2.5V~80V |
300K |
0.8A |
外置稳压,内置MOS,PWM 调光 |
ESOP-8 |
|
8V~100V |
2.5V~80V |
300K |
0.8A |
外置稳压,内置MOS,PWM 调光 |
ESOP-8 |
|
8V~100V |
2.5V~80V |
300K |
1.5A |
外置稳压,内置MOS,PWM 调光 |
ESOP-8 |
|
8V~100V |
2.5V~80V |
300K |
1.5A |
外置稳压,内置MOS,PWM 调光 |
ESOP-8 |
|
3V~100V |
2.5V~80V |
300K |
5A |
内置稳压,外置MOS,带二功能(全亮,1/4亮 |
SOT23-6 |
|
3V~100V |
2.5V~80V |
300K |
5A |
内置稳压,外置MOS,带三功能(全亮, 半亮, 爆闪), |
SOT23-6 |
|
3V~100V |
2.5V~80V |
300K |
5A |
内置稳压,外置MOS,三功能(全亮, 暗亮 1/4, 爆闪) |
SOT23-6 |
|
3V~100V |
2.5V~50V |
300K |
4.2A |
外置稳压,内置MOS |
SOP-16 |
|
8V~100V |
2.5V~80V |
300K |
10W |
内置MOS,PWM 调光,线性调光,内置稳压 |
ESOP-8 |
|
8V~100V |
2.5V~80V |
300K |
22W |
内置MOS,PWM 调光,线性调光,内置稳压 |
ESOP-8 |
|
8V~100V |
2.5V~80V |
300K |
30W |
内置MOS,PWM 调光,线性调光,内置稳压 |
ESOP-8 |
|
3V~20V |
3~10.5V |
300K |
15W |
内置30VMOS 管, 内置 18mΩ带五功能模块 |
ESOP-8 |
|
3V~20V |
3~10.5V |
300K |
15W |
内置30VMOS 管, 内置 18mΩ带三功能模块 |
ESOP-8 |