用在双节上可以驱动3串9并,单节只能到3串7并
DESCRJPTION
The TP3984 is a constant current step-up converter specifically designed to drive white LEDs. The Step-up converter topology allows series connection of the white LEDs so the LED currents are identical for uniform brightness. The TP3984 switches at 1.1MHz, allowing the use of tiny external components. The input and output capacitor can be as small as 1µF, saving space and cost versus alternative solutions. A low 0.25V feedback voltage minimizes power loss in the current setting resistor for better efficiency. TP3984 is enhanced with Soft-Start function and that could significantly reduce noise induced by capacitor.
The TP3984 is available in low profile SOT23-6 package.
FEATURES
·2.6V to 5.5V Input Range
·27V Output with Over Voltage Protection
·High Efficiency :85 % Typical
·Internal Soft-Start
·PWM Dimming Control
·Internal High Power 30V MOSFET Switch
·Fast 1.1MHz Switching Frequency
·Small, Low-Profile Inductors and Capacitors
·SOT23-6 Package
·RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
·Mobile Phone
·Digital Still Camera
·PDAs, Handheld Computers
·MP3 Players
·GPS Receivers
相关文章:
LED背光驱动器手持设备解决方案
3串7并,7寸液晶屏LED背光驱动器TP3984
LED驱动电源的设计要注意什么?
可驱动32个LED的BL8532
相机低压闪光灯驱动电路及器件选择指南
手持式消费类电子产品常用LED驱动器
LED背光驱动需求迅速增长,仍存在技术瓶颈
LED开关电源概念及组成部分
KB4317高效率恒流2瓦升压白光LED驱动器
TP3984配合MST717C驱动TFT液晶显示屏
LED背光驱动中出现斜波和纹波的处理方法
DC/DC升压电路中电感的选取
TPmicro:LED背光驱动电路设计分析
LED灯基础:如何判断LED灯阻值
LED战场寸土必争 芯片厂商助力跑步前进
LED价格降幅大 中小封装企业处境尴尬
LED Lighting DC/DC Driver
09
09
2021
7"在双节可驱动3串9并,单节3串7并 TP3894 背光驱动
来源:[深圳市利盛达科技有限公司]
联系人:谭女士
手机:
电话:0755-86250810
传真:0755-86250810
QQ:584341952
Email:sales@lsdtek.com
地址:广东省深圳市深圳市深圳市福田区滨河大道上沙创新科技园5栋4楼
品牌:TPMICRO
价格:面议
元/
供应地:广东省深圳市
产品型号:TP3894

