參數(shù)資料
型號(hào)： CAT4137
元件分類： LED驅(qū)動(dòng)器
英文描述： CMOS Boost Converter- White LED Driver
中文描述： 的CMOS升壓轉(zhuǎn)換器，白光LED驅(qū)動(dòng)器
文件頁(yè)數(shù)： 11/14頁(yè)
文件大?。?/td> 504K
代理商： CAT4137
CAT4137
2005 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
11 of 14
Doc. 5012 , Rev. A
Open LED Protection
In the event of an “Open LED” fault condition,
the CAT4137 will continue to boost the output
voltage with maximum power until the output
voltage reaches approximately 24V. Once the
output exceeds this level, internal circuitry
immediately places the device into a very low
power mode where the total input power
consumed is less than 10mW.
Open LED Protection
In low power mode, the input supply current
will typically drop to 2mA. An internal clamping
circuit will limit the subsequent output voltage to
approximately 29V. This operating mode
eliminates the need for any external protection
zener diode. This protection scheme also fully
protects the device against any malfunction in
the external Schottky diode (open-circuit).
Open LED Power-up Waveforms
Open LED Supply Current vs. VIN
1.0
1.5
2.0
2.5
2.5
3.0
3.5
4.0
4.5
5.0
INPUT VOLTAGE [V]
S
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CAT4137AEVB 功能描述:BOARD EVALUATION DPP CAT4137A RoHS:是 類別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - LED 驅(qū)動(dòng)器 系列:* 標(biāo)準(zhǔn)包裝:1 系列:PowerWise® 電流 - 輸出 / 通道:20mA 輸出及類型:1，非隔離 輸出電壓:17V 特點(diǎn):可調(diào)光 輸入電壓:2.7 ~ 5.5 V 已供物品:板 已用 IC / 零件:LM3508 相關(guān)產(chǎn)品:LM3508TLX-ND - IC LED DRVR WHT BCKLGT 9USMDLM3508TLDKR-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLCT-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLTR-ND - IC LED DRVR WHT BCKLGT 9MICROSMD
CAT4137TD 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:CMOS Boost Converter - White LED Driver
CAT4137TD-GT3 功能描述:LED照明驅(qū)動(dòng)器 LED Driver,Boost 5 LED,series RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
CAT4137TD-T3 功能描述:LED照明驅(qū)動(dòng)器 Boost Converter White LED RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
CAT4137TS 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:CMOS Boost Converter - White LED Driver
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