MP4603

Power-Leverage Buck-Boost WLED Driver with Separate ADIM and PDIM; ● Novel Power-Leverage-Control Technology \n● Unique Step-Up/Down Operation \n● Up to 99.5% Efficiency \n● 0.5O Internal Power MOSFET \n● Switching Frequency Synchronization \n● Over 1:1000 Dimming Ratio \n● Separate Analog and PWM Dimming \n● ?% 200mV Reference Voltage \n● 10? Shutdown Mode \n● Cycle-by-Cycle Over-Current Protection \n● Thermal Shutdown Protection \n● LED String Open and Short Protection \n● FAULT Output at LED Protection \n● Output Short-Circuit Protection \n● Available in SOIC16 Package\n;

The MP4603 is an integrated white LED driver. It uses MPS? patent-pending technology to drive the backlights for LCD TVs measuring 60-inches or larger, for LED string voltages up to 350V. This novel technology can leverage the LED drive power by regulating only a small portion of the LED drive voltage?ogether with a fixed high-voltage source, a low-voltage LED driver can drive high voltage LED strings. This method allows for a super-high power density, higher efficiency and lower cost due to the low voltage stress, higher switching frequencies, and smaller passive components.?The MP4603 is a current-mode?ontrolled buck-boost regulator. With a 12V input VINL and a high voltage source VINH, it can deliver a regulated voltage (VINH to VINH+68V) to drive a LED string with up to 100 LEDs. It can drive an external switch in series with the LED string to achieve over 1:1000 dimming ratio. Analog dimming can be applied at the same time to further improve the dimming ratio. Fault protections include LED open-string protection, output short-circuit protection, cycle?y?ycle peak current limiting, and thermal shutdown.?The MP4603 is available in SOIC16 package.

MP4603

White LED Driver for Large LCD TV Backlights

MP4603EF

White LED Driver for Large LCD TV Backlights

MP4603ES

Buck-Boost White LED Driver For TV Backlighting Applications

MP4603ES

White LED Driver for Large LCD TV Backlights

MP4603EF-LF-Z

Package：16-SOIC（0.154"，3.90mm 宽）；包装：管件 类别：集成电路（IC） LED 驱动器 描述：IC LED DRV RGLTR PWM 2.5A 16SOIC

MP4603ES-LF

Package：16-SOIC（0.154"，3.90mm 宽）；包装：管件 类别：集成电路（IC） LED 驱动器 描述：IC LED DRV RGLTR PWM 2.5A 16SOIC

MP4603ES-LF-Z

Package：16-SOIC（0.154"，3.90mm 宽）；包装：管件 类别：集成电路（IC） LED 驱动器 描述：IC LED DRV RGLTR PWM 2.5A 16SOIC