AAT15071数据手册AAT中文资料规格书

描述 Description

\tThe AAT15071 is a boost DC-DC converter for white LEDs. Series connection of the LEDs allows consistent LED currents, which is essential for uniform brightness, and eliminates the need for ballast resistors. The 20V over voltage comparator can also be used to prevent output open-circuit, caused by bond wire breakages.


\tThe AAT15071 switches at 1.4MHz. Optional external components may also be added if required. The optimized input/output capacitor and a low feedback voltage to minimize power loss in current-setting resistor make AAT15071 a power-smart solution.  


\tThe AAT15071 is available in a space-saving TSOT23-6 (TSOT26), SOT23-6 (SOT26) and VSON8


\tpackage, which are ideal for portable applications.

特性 Features

• Boost PWM with Internal NMOS
• Wide PWM Dimming Range:100Hz to 200kHz
• 2.7V to 5.5V Input Voltage Range
• Under-Voltage Lockout (UVLO) Protection
• Internal Over Voltage and Thermal Protection
• Internal Soft-Start
• Fixed Switching Frequency: 1.3MHz
• 0.1μA Shutdown Current
• TSOT-23-6, SOT-23-6 and VSON8-3 x 3package

应用 Application

• Cell PhonesDSCSmall LCD Displays