The cxle8694 has a built-in high-precision error amplifier. It is a high efficiency, stable and reliable high brightness LED lamp driving control IC, with built-in high-precision comparator, off-time control circuit, constant current drive control circuit, etc., especially suitable for high-power, multiple high brightness LED lamp series constant current drive. The fixed off time control mode can work at a frequency of up to 1MHz, which can reduce the external inductance and filter capacitance, reduce the volume and improve the efficiency. Add PWM signal at the en foot to adjust the brightness of LED lamp. By adjusting the external resistance, the driving current of the high brightness LED lamp can be controlled, so that the brightness of the LED lamp can reach the expected constant brightness, and the current flowing through the high brightness LED lamp can change from a few Ma to a ampere.
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[ CXLE8694 ]"
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
CXLE8694内置高精度误差放大器。是一款高效率，稳定可靠的高亮度LED灯驱动控制IC，内置高精度比较器，off-time控制电路，恒流驱动控制电路等，特别适合大功率，多个高亮度LED灯串恒流驱动。采用固定 off-time控制工作方式，其工作频率可高达1MHz，可使外部电感和滤波电容、体积减少，效率提高。在EN脚加PWM信号，可调节LED灯的亮度。通过调节外置的电阻，能控制高亮度LED灯的驱动电流，使LED灯亮度达到预期恒定亮度，流过高亮度LED灯的电流可从几毫安到1安培变化。
CXLE8694采用ESOP-8/PP封装。散热片内置接SW脚。有利于芯片散热。
二.产品特点
Ø 内置 100V 功率管
Ø 宽输入电压范围：8V~32V
Ø 高效率：可高达 95%
Ø 最大工作频率：1MHz
Ø 峰值电流采样电压：250Mv
Ø FB 端采样电压：1V
Ø 亮度可调：EN 端加 PWM 信号
Ø 关断时间可调
Ø 内置电流采样前沿消隐电路
三.应用范围
Ø 平板显示器 LED 背光灯
Ø 电动自行车灯
Ø LED 射灯
Ø 应急灯
Ø 通用恒流源
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......
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电压升压恒流驱动系列 |
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型号 |
输入电压 |
输出电压 |
开关频率 |
最大输出 |
电压 |
封装 |
|
0.9V~5V |
2.7V~5V |
300K |
0.5A |
2.7V/3V/3.3V/3.6V/5V, |
SOT89-3, SOT23-3/5 |
|
|
0.9V~4V |
2.2V~5V |
300K |
0.3A |
2.2V/2.8V/3V/3.3V/3.6V |
SOT89-3,SOT23-3/5 |
|
|
0.9V~4V |
0.9V~4.2V |
1M |
0.85A |
升压恒流 |
SOT23-6 |
|
|
0.9V~4V |
0.9V~4.2V |
1M |
0.75A |
升压恒流3功能 |
SOT23-6 |
|
|
0.9V~4V |
0.9V~4.2V |
1M |
0.75A |
升压恒流5功能 |
SOT23-6 |
|
|
0.9V~4V |
5V |
300K |
2A |
升压恒压 |
SOT23-6 |
|
|
9V~32V |
36~85V |
300K |
30W |
内置稳压,外置MOS |
ESOP-8 |
|
|
9V~32V |
36~85V |
300K |
12W |
内置100VMOS管内置稳压 |
ESOP-8 |
|
|
9V~32V |
36~48V |
300K |
24W |
内置60VMOS管内置稳压 |
ESOP-14 |
|
|
9V~32V |
36~48V |
300K |
36W |
外置稳压,外置MOS |
ESOP-8 |
|
