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T8332 60V Buck/Boost/Buck-Boost/SEPIC AEC-Q100 LED Driver with External MOSFET

T8332 60V Buck/Boost/Buck-Boost/SEPIC AEC-Q100 LED Driver with External MOSFET

發表 2017/10/16

車用LED是少數具市場規模且仍快速成長的應用之一,LEDinside預估全球車用LED市場(前裝與後裝市場總和)產值於2018年達到25億美金,2014-2018年複合成長率約為9%。

我們最新推出T8332 60V車用LED Driver,可支援Buck/Boost/Buck-Boost/SEPIC四種架構,並可調整頻率(80KHz~1MHz),以滿足不同應用之轉換需求,同時具有高電流精準度(±3%)、完整保護功能以及簡化EMI問題的抖頻設計,並已通過AEC-Q100車規認證,共有QFN-16/TSSOP-16/SOP-8三種包裝可供選擇,適合前裝與後裝市場之各類型車燈應用例如頭燈、車內吸頂燈與方向燈等。

FEATURES

• 5 - 60V input voltage range

• Single resistor programmable constant current driver

• Excellent constant current accuracy ±3% typically

• 0.1V feedback reference voltage tailor-made for LED application

• Support Boost/Buck/Buck-Boost/SEPIC configuration

• DC and PWM dimming

• On-chip thermal shutdown at 170 oC

• Thermal derating by using external NTC

• Programmable soft start

• Programmable switching frequency 80kHz to 1MHz (by default 430kHz)

• Dithering in oscillator frequency to simplify the EMI design

• Cycle-by-cycle current limit

• Over-current protection

• Open LED overvoltage indication and protection

• 15μA shutdown current

• TSSOP-16/QFN-16/SOP-8 package