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參數(shù)資料
| 型號： | LP3958 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Lighting Management Unit with High Voltage Boost Converter |
| 中文描述： | 照明管理股高電壓升壓轉換器 |
| 文件頁數(shù)： | 15/28頁 |
| 文件大小： | 1091K |
| 代理商： | LP3958 |
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Backlight Drivers
LP3958 has 2 independent backlight drivers. Both drivers are regulated constant current sinks. LED current for both LED strings
are controlled by the 8-bit current mode DACs with 0.1 mA step. MAIN and SUB LEDs can be also controlled with one DAC
(MAIN) for better matching allowing the use of larger displays having up to 8 white LEDs by setting DISPL bit to 1.
20175589
MAIN output for 4 LEDs (DISPL = 0)
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SUB output for 2 LEDs (DISPL = 0)
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MAIN and SUB outputs for 8 LEDs (DISPL = 1)
PWM CONTROL
External PWM control is enabled by writing 1 to EN_MAIN_PWM and/or EN_SUB_PWM bits in register address 2BH. GPIO[0]
pin is used as external PWM input when EN_PWM_PIN is set high. PWM input is active high, i.e. LED is activated when in high
state.
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www.national.com
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| LP3958TLX | Lighting Management Unit with High Voltage Boost Converter |
| LP3971 | POWER MANAGEMENT UNIT FOR ADVANCED APPLICATION PROCESSORS |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LP3958TL | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Lighting Management Unit with High Voltage Boost Converter |
| LP3958TL/NOPB | 功能描述:LED照明驅動器 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: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| LP3958TLX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Lighting Management Unit with High Voltage Boost Converter |
| LP3958TLX/NOPB | 功能描述:LED照明驅動器 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: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| LP395Z | 功能描述:兩極晶體管 - BJT RoHS:否 制造商:STMicroelectronics 配置: 晶體管極性:PNP 集電極—基極電壓 VCBO: 集電極—發(fā)射極最大電壓 VCEO:- 40 V 發(fā)射極 - 基極電壓 VEBO:- 6 V 集電極—射極飽和電壓: 最大直流電集電極電流: 增益帶寬產品fT: 直流集電極/Base Gain hfe Min:100 A 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PowerFLAT 2 x 2 |
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