Marvell launched the industry's first single-chip dual channel adjustable light LED lighting driver chip

Global integrated chip solutions leader Marvell Technology (MarvELl) recently announced the world's first intelligent dual channel LED driver chip 88EM8801. This chip adopts the Marvell company's unique power technology, and with the help of deep strength in high integrated and mixed signal technology advanced, will originally need multiple drive chip, micro controller and many discrete components to achieve high-end lighting function is integrated into a single chip. Marvell new 88EM8801 driver chip compact, with intelligent digital control function, can help customers to high-end lighting and control functions are easily applied to professional and consumer mainstream lighting products, such as lamp, compatible with the Zhaga LED module, PAR lamp, AR lamp, A19 lamp and MR.

88EM8801 is the new Marvell 8800 Series LED lighting driver in the first product. The product line has intelligent digital control function, can greatly reduce the complexity of system design and reduce the need for high-end lighting engineering input. By adjusting the current unique features, the new 8800 series can be used in classifying the lower level of LED so as to reduce the cost of the system, but in the LED lamp manufacturing process and the entire life cycle can be maintained constant flux and temperature. In addition, the 8800 series can also be achieved by intelligent pulse width modulation (PWM) dimming control circuit and other digital dimming control mechanism to achieve the minimum depth of 0.1% dimming.

In addition can reduce LED driver circuit size, reduce the design complexity and cost, intelligent 88EM8801 reduces the overhead in the LED element also bring high-quality light output, this part of the cost of the total cost of the LED lamp generally occupies 60%. With Marvell's dual channel drive technology, the 88EM8801 provides an excellent solution for mixing and controlling different color LED to achieve high color rendering index (CRI) and lumen per watt. Moreover, the 8801 solution can provide up to 95% efficiency, but also provides an on-chip wireless lighting control communication interface.

Marvell company has begun to provide 88EM8801 samples and evaluation boards to major OEM manufacturers.

Introduction

"New Marvell 8800 LED driver chip series will significantly reduce the realization of high-quality professional and consumer LED lighting technology application cost, accelerate sustainable mass market LED solutions. "Marvell green technology products division vice president Kishore Manghnani said," 88EM8801 is a similar product in the first processing of dual channel LED driver, has differences in the characteristics of a variety of unique, more high-end lighting products can be used for the development of the general consumer market is still more expensive. "

Product overview:

88EM8801 four built-in high power MOSFET, Marvell a I2C interface and a one-time programmable (OTP) memory block, current control can be accurately and efficiently for each LED string. This is achieved by pre writing and compensating data in the OTP memory or by dimming control signals via the PWM and the I2C interface to achieve the target optical specifications. Due to the high degree of integration, the 88EM8801 eliminates the need for external components such as MOSFET and rectifier diodes, greatly saving the material list (BOM) cost and board space. In addition, the 88EM8801 features a dual channel synchronous rectification buck topology that provides up to 95% efficiency.

Product details include:

Independent control of the two LED string, allowing the red LED and cold white or blue green LED mix to achieve warm mild high color rendering index

Up to 40V DC input

A LED channel current can be as high as 1000mA, another LED channel is 500mA

Dual channel DC / DC synchronous buck, built in MOSFET

Up to 800 kHz high switching frequency can reduce component size

The on-chip OTP memory block can be pre stored for compensation and calibration data

Resolution of up to 10 bits of PWM control can achieve 0.1% depth dimming

The I2C interface supports OTP memory programming and communication protocols such as ZigBee, WiFi and power line communication (PLC)

PWM dimming input control

Input ripple cancellation

Soft start

Over current and over temperature protection

Undervoltage lockout

Related links:

Product information: http://www.marvell.com/green-technology/led/led-driver.html? Marvell media: http://www.marvell.com/company/press_kit/

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About happy Electronic Technology (Marvell)

Marvell Technology (Marvell) is a new semiconductor company. By providing a complete set of low-power, high-performance chip solutions for the consumer electronics world to bring about change. The Marvell product provides a powerful impetus for the most popular consumer electronic products, such as electronic reader, this smart, intelligent mobile phone and mobile Internet devices (MID), tablet computer and emerging personal information equipment etc.. Founded in 1995, Marvell is one of the world's leading semiconductor companies in the semiconductor industry, offering more than one billion chips per year to the market. Marvell in the leading position in the ARM ecosystem, is the world offering running ARM instruction set up of company integrated CPU. For more information, please visit: www.marvell.com.

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