General DeSCRJPTion
The TP3919 is a 1.2MHz PWM boost switching regulator designed for constant-current white LED driver applications. The TP3919 can drive a string of up to 8 white LEDs from a 3.3V in series, ensuring uniform brightness and eliminating several ballast resistors. The TP3919 implements a constant frequency 1.2MHz PWM control scheme.The high frequency PWM operational so saves board space by reducing external component sizes.To improve efficiency, the feedback voltage is set to 200mV, which reduces the power dissipation in the current setting resistor.
Highly integration and internal compensation network minimizes as 3 external component counts. Optimized operation frequency can meet the requirement of small LC filters value and low operation current with high efficiency.
Features
* Built-in Schottky Diode
* High Efficiency: 86%
* 1.2MHz Fixed-Frequency PWM Operation
* Maximum Output Voltage up to 28V
* Operating Range : 2.7V to 16V
* Shutdown Supply Current:<1uA .
* Available in SOT23-6 Package .
* Built-in Over Voltage Protec. tion
* Minimize the External Component
* RoHS Compliant and 100% Lead (Pb)-Free
Applications
* WLED Backlight driver
* OLED Backlight driver
* PDA / DSC
* Camera Flash WLED driver
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09
09
2021
8颗LED高效恒流驱动 TP3919 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:TP3919

