CXLE87159是一个电流模式单片降压LED驱动器。CXLE87159在4.5-20V的输入范围内工作，通过两个集成的N通道mosfet提供2A的连续输出电流。内部同步功率开关无需使用外部肖特基二极管即可提供高效率。在轻负载下，LED驱动器以低频工作，以保持高效率和低输出纹波。CXLE87159通过LED短路保护、热保护、启动电流失控保护、输入欠压锁定，确保了稳健性
4.5V至20V工作输入范围2A输出电流
效率高达94%
轻载高效（>85%）
固定1MHz开关频率
输入欠压锁定
启动电流失控保护
LED短路保护
热保护
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[ CXLE87159 ]
目录
7.相关产品
产品概述 返回TOP
The CXLE87159 is a current mode monolithic buck LED driver. Operating with an input range of 4.5-20V, CXLE87159 delivers 2A of continuous output current with two integrated N-Channel MOSFETs. The internal synchronous power switches provide high efficiency without the use of an external Schottky diode. At light loads, the LED driver operates in low frequency to maintain high efficiency and low output ripple. The CXLE87159 guarantees robustness with LED short protection, thermal protection, start-up current run-away protection, input under voltage lockout. The CXLE87159 is available in 6-pin and 8-pin TSOT packages, which provide a compact solution with minimal external components.
产品特点 返回TOP
4.5V to 20V operating input range 2A output current
Up to 94% efficiency
High efficiency (>85%) at light load
Fixed 1MHz Switching frequency
Input under voltage lockout
Start-up current run-away protection
LED short protection
Thermal protection
Available in TSOT23-6 and TSOT23-8 packages
应用范围 返回TOP
LED Driver
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
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电路原理图 返回TOP
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产品型号 |
封装 |
拓扑 |
频率 |
输入 |
调光 |
过流保护 |
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Vin(V) |
Iout(A) |
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ESOP8 SOT23-6 |
Buck, Boost |
Constant 2us toff |
4.6~44 |
2A peak |
PWM/Analog |
Y |
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SOT23-6 |
Buck |
1MHz |
3.8~24 |
2A |
PWM/Analog |
Y |
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SOT23-6 |
Buck |
Constant 2us toff |
4.6~30 |
2A peak |
PWM/Analog |
Y |
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SOT23-6 |
Buck |
1MHz |
4.5~28 |
1.2A |
PWM/Analog |
Y |
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◀ 上一篇:CXLE87158模拟调光和脉宽调制调光电流模式单片LED驱动器LED电流通过模拟输入电压控制通过高侧LED电流感应降压升压或降压升压拓扑4.6V至44V工作输入范围2A峰值开关电流
下一篇▶:CXLE87160模拟调光和脉宽调制调光电流模式单片降压LED驱动器LED电流通过模拟输入电压控制集成的30V/2A N沟道MOSFET高效率4.6V至30V输入2A峰值开关电流
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