MP1528DQ集成电路（IC）的LED驱动器规格书PDF中文资料

MP1528DQ属于集成电路（IC）的LED驱动器。由美国芯源系统有限公司制造生产的MP1528DQLED 驱动器器件属于 LED 驱动器电源管理集成电路 (PMIC) 系列，可通过标称固定电压的电源为负载（通常为发光二极管）提供电流，并且电流可控。它与用于电压调节的类似产品的主要区别在于，这类器件提供较低的反馈电压（以提高系统能效），而且通常可对器件工作点进行外部控制，可在照明应用中用于实现调光功能。

DESCRIPTION

The MP1528 is a step-up converter designed for driving up to nine (9) series White LEDs (LED) from a single cell Lithium-Ion battery. It regulates the LED current and includes an analog input for varying the LED brightness.

The MP1528 uses current limited, variable frequency architecture to regulate the LED current while maintaining high efficiency. The BIAS pin measures the output voltage and turns off the converter if an over voltage condition is present to prevent damage due to an open circuit condition. The LED current is measured with an external current sense resistor. The low 0.4V full-scale regulation threshold and 0.63Ω power switch minimize power loss.

The MP1528 is available in an 8 pin MSOP and a tiny 6 pin 3mm x 3mm QFN packages.

FEATURES

• Drives up to 9 Series White LEDs

• Integrated 0.63Ω Power MOSFET

• Low 0.4V Full-Scale Current Sense Threshold

• Over 20mA Output Current Capacity

• Analog and Digital PWM Brightness Control

• Open Load Shutdown

• Soft-Start

• Internal Current Limit

• Under Voltage Lockout

• Thermal Shutdown

• Available in 8-Pin MSOP and Tiny 3mm x 3mm 6-Pin QFN Packages

APPLICATIONS

• Handheld Computers

• PDAs

• PDA Phones

• Digital and Video Cameras

• Small LCD Displays