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Solid-State LED Lighting


Datasheet

PDF

ソフトウェア

説明

MSL2160/2161

MSL2160/2161 Complete

(ファイルサイズ: 1829057, 28 ページ, 改訂 A, 更新日: 06/2011)
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The Atmel mSilica MSL2160 compact, high-power LED string driver uses external current control MOSFETs to sink up to 350mA per string, with current accuracy and matching better than 1.5%. The MSL2160 drive 16 parallel strings of LEDs, and offer fault detection and management of open and short circuit LEDs.

The MSL2160 features a 20MHz SPI bus interface supporting video frame-by-frame LED string intensity control for up to eight interconnected devices, allowing active area dimming and phase shifted PWM dimming for improved performance. The device include an advanced PWM engine that synchronizes PWM dimming to the video signal for reduced motion blur and waterfall noise.

The MSL2160 adaptively controls the DC-DC converters that power the LED strings using mSilica Adaptive SourcePower™ technology. This scheme optimizes power consumption without sacrificing LED current accuracy. Peak LED string currents are set using current sense resistors, and global string current is adjustable with 8-bit control. Global string drive pulse width is adjusted with an 8-bit global intensity register, and individual string pulse width is modulated with 12-bit control.

主なパラメータ

パラメータ

Interface Type:

SPI (PWM)

Number of Strings:

16

Max Current per String:

DENR

LEDs per String:

DENR

Max String Match:

1.5%

String Current Global:

8 bits

String Current per String:

R

String PWM Global:

8 bits

String PWM per String:

12 bits

String Phasing:

12 bits