TP3915裕鼎祥咨询电话：139 2843 4054
DESCRIPTION：LCD偏压电路
The TP3915 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 TP3915 switches at 1.5MHz, allowing the use of tiny external components. A low 1.25V feedback voltage minimizes power loss in the current setting resist or for better efficiency.
TP3915 is enhanced with Soft-Start function and that could significantly reduce noise induced by capacitor.Highly integration and internal compensation network minimizes as 5 external component counts. Optimized operation frequency can meet the requirement of small LC filters value and low operation current with high efficiency.
The TP3915 is available in low profile SOT23-5 Package.
FEATURES
* High Efficiency :83 % Typical
* Fast 1.5MHz Switching Frequency
* Shutdow Supply Current : <1μA
* Minimize the External Component
* 36V 500mA Integrated Switch
* On-chip Overvoltage Protection
* Available in SOT23-5 Package
* RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
* LCD Bias Supply
* OLED Driver
* PDAs, GPS
