LED升压方案征集

输入是固定36V吗?如果不是太阳能供电,输入是固定的,我有个建议.阁下可以留下你的联系方式一起交流一下:
Isaac.0755@163.com
13928493548

LM3423 LED驱动器的技术规格
这款最新推出的美国国家半导体LM3423芯片适用于高达75V的输入电压,可升降压应用,
可出高达18个1W串接 LED,
       VIN range from 4.5V to 75V
2% 1.25V Internal reference voltage
Current sense voltage adjustable from 50mV to 1.25V
High side current sensing
750mA peak MOSFET gate driver
Dimming MOSFET gate driver
Input under-voltage protection
Output over-voltage protection
LED ready flag
Low shutdown current, Iq < 1?A
Fast (50 KHz) PWM dimming input  
Cycle-by-cycle current limit
Programmable running frequency
Fault timer pin
TSSOP-20 package
        Applications
LED Drivers
Constant Current Buck-Boost Regulator
Constant Current Boost Regulator
Constant Current Flyback Regulator
Constant Current SEPIC Converter
Thermo-Electric Cooler (Peltier) Driver
TEL:(0)13760313075;
Email:ZHEB8110@163.COM;
MSN:ZHEB8110@hotmail.com;500) {this.resized=true; this.width=500; this.alt='这是一张缩略图，点击可放大。\n按住CTRL，滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/79/1367671248876451.jpg');}" onmousewheel="return imgzoom(this);">

你好 我们的CC6003能满足你的要求
CC6003----大功率LED升压DC/DC 恒流驱动IC 主要特点如下:
(1)宽输入电压:3.6V~36V
(2)输出电压高:最高可升到42V,可串联12颗1W LED
(3)低至0.2V参考电压,可以有效提高系统效率
(4)大电流1050mA持续电流输出,
可驱动1W LED12串3并或3W LED12串
(5)EN脚可实现PWM调光,
且输入自带软启动功能
(6)应用电路简单

深圳中行科技 罗骥 13670179359 QQ:565830764 email:luoji1121@163.com

多少钱一片呢?