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  • LED 背光驱动器  
  • 发布时间：2009/2/28 10:33:34   修改时间：2009/2/28 10:33:34 浏览次数：3379

  • 首页＞NS国半＞方案应用＞LED照明

    LED照明

    Inductive-Boost Backlight LED Drivers（22）
    Base Part Number 数据手册DataSheet下载 Regulated LEDs Total LED Current Boost Type Switching Frequency Efficiency (peak) Current Matching Input Min Voltage Input Max Voltage OutputMax Voltage Boost Voltage LED Configuration Supply Current Switching Type Special Features PWM BrightCtrl Analog-V BrightCtrl Ambient Light Compensation RGB-LED Temperature Min Temperature Max RegType AEC Q-100 Automotive Grade Automotive Selection Guide PowerWise 数据手册DataSheet下载
    LM3224 LM3224 1 2450   1250 90   2.7 7 20         Pin-selected switching frequency, External compensation, Ceramic cap stable, Flat panel display power, High current LED driver No No No No -40 125 Switching Regulator     No LM3224
    LM2705 LM2705 3 40 Inductive Undefined 80 Perfect 2.2 7 20 Unregulated Series 0.235 PFM   Yes No No No -40 85 Switching Regulator     No LM2705
    LM3590 LM3590 3 20 - Undefined - Perfect 6 12.6 - Regulated Series 0.05 Fixed Freq Current Source Yes No No No -40 85 WhiteLED Driver     Yes LM3590
    LM2703 LM2703 4 60 Inductive Undefined 80 Perfect 2.2 7 20 Unregulated Series 0.235 PFM   Yes No No No -40 85 Switching Regulator     No LM2703
    LM2704 LM2704 4 120 Inductive Undefined 80 Perfect 2.2 7 20 Unregulated Series 0.235 PFM   Yes No No No -40 85 Switching Regulator     No LM2704
    LM3500 LM3500 4 70 Inductive 1000 85 Perfect 2.7 7 21| 16 Regulated Series 1 PWM   Yes No No No -40 85 WhiteLED Driver     No LM3500
    LM3508 LM3508 4 30 Inductive 850 85 Perfect 2.7 5.5 17.5 Regulated Series 0.825 Fixed Freq True shutdown isolation of LEDs, Internal soft start, Output short-circuit protection Yes No No No -30 85 WhiteLED Driver     Yes LM3508
    LM3519 LM3519 4   Inductive 2000 80   2.7 5.5 18.9         Up to 30kHz PWM dimming output No No No No -40 85 Switching Regulator     Yes LM3519
    LM3595 LM3595 4 100 Inductive Undefined - 0.50% 3 5.5 5.5 Regulated Parallel 0.2 Fixed Freq Current Source Yes Yes No No -40 85 WhiteLED Driver     Yes LM3595
    LM3501 LM3501 5 70 Inductive 1000 85 Perfect 2.7 7 21| 16 Regulated Series 1 PWM Analog input dimming Yes Yes No No -40 85 WhiteLED Driver     No LM3501
    LM3557 LM3557 5     1250 -   2.7 7.5 22   Parallel       No No No No -40 85 Switching Regulator     Yes LM3557
    LM2623 LM2623 10   Inductive 2000 90   0.8 14 14         Ratio-adaptive gated oscillator No No No No -40 85 Switching Regulator     No LM2623
    LM2731 LM2731 10     600 90   2.7 14 20         Undefined No No No No -40 125 Switching Regulator   Yes No LM2731
    LM2733 LM2733 10     1600 Undefined   2.7 14 40           No No No No -40 125 Switching Regulator   Yes No LM2733
    LM3502 LM3502 10   Inductive 1000 80   2.5 5.5 35| 16| 44| 25         Dual display control No No No No -40 125 Switching Regulator     Yes LM3502
    LM3503 LM3503 10 20 Inductive 1000   Perfect 2.7 5.5 44 Regulated Series   Fixed Freq   Yes Yes     -40 85 WhiteLED Driver     Yes LM3503
    LM3509 LM3509 10 30 Inductive 1250 90 0.20% 2.7 5.5 21 Regulated Parallel 0.44 PFM I2C Compatible Control No No No No -40 85 Switching Regulator     Yes LM3509
    LM3528 LM3528 12 60 Inductive 1250 90 0.20% 2.5 5.5 20.6 Regulated Series 0.9 PWM 128 Exponential Brightness Levels, Programmable Indicator LED Undefined       -40 85 Switching Regulator Undefined     LM3528
    LM3431 LM3431 Undefined Undefined Inductive 1000 88 3% 5 37 40 Regulated Parallel Undefined PWM 3-channel current controller, LED fault protection Yes Yes No No -40 125 Switching Controller Undefined Yes Yes LM3431
    LM3430 LM3430       2000 94   6 40           Dynamic Headroom Control (with LM3432)         -40 125 Switching Controller   Yes Yes LM3430
    LM3432 LM3432       Undefined     6 40           6-Channel regulator, dynamic headroom control (with LM3430), current matching between channels, digital and analog dimming         -40 125 Linear Regulator   Yes No LM3432
    LM4510 LM4510         85   2.7 5.5           True shutdown         -40 85 Switching Regulator     Yes LM4510

     

    Switched-Capacitor Boost Backlight LED Drivers（18）
    Base Part Number 数据手册DataSheet下载 Regulated LEDs LED Configuration Total LED Current Current Matching Boost Type Switching Frequency Efficiency (peak) Input Min Voltage Input Max Voltage OutputMax Voltage Boost Voltage Supply Current Switching Type Special Features PWM BrightCtrl Analog-V BrightCtrl Ambient Light Compensation RGB-LED Temperature Min Temperature Max RegType PowerWise 数据手册DataSheet下载
    LM2750 LM2750 -| 6 Parallel 120 Perfect Switched Capacitor 2x 1700 62 2.7 5.6 5| 5.2 -| Regulated 5 Fixed Freq Inductorless regulated boost converter, Low noise, constant voltage source for multi-LEDs in parallel Yes No No No -40 85 Switched Cap Regulator No LM2750
    LM2753 LM2753 - Parallel 200 Perfect Switched Capacitor 2x 725 68 3 5.5 5 Regulated 0.06 PFM Flash-LED driver, 250mA continuous load and 400mA pulsed load Yes No No No -40 85 Switched Cap Regulator No LM2753
    LM2791 LM2791 2 Parallel 36 0.30% Switched Capacitor 2x 450 64 3 5.8 - Unregulated 0.7 Fixed Freq   Yes Yes No No -30 85 WhiteLED Driver No LM2791
    LM2755 LM2755 3 Parallel 90 1% Switched Capacitor Multi-Gain 1250 90 2.7 5.5 Undefined Unregulated 1 Fixed Freq Configurable Diode Current Waveform Generator Yes No No Yes -30 85 WhiteLED Driver Yes LM2755
    LM3570 LM3570 3 Parallel 80 0.30% Switched Capacitor 1.5x 500 83 2.7 5.5 4.35 Regulated 1.5 Fixed Freq 3 constant current outputs plus regulated 3.45V output for driving additional LEDs Yes No No No -40 85 WhiteLED Driver Yes LM3570
    LM2794 LM2794 4 Parallel 80 0.50% Switched Capacitor 1.5x 515 80 2.7 5.5 - Unregulated 5.5 Fixed Freq Active low shutdown Yes Yes No No -30 85 WhiteLED Driver No LM2794
    LM2795 LM2795 4 Parallel 80 0.50% Switched Capacitor 1.5x 515 80 2.7 5.5 - Unregulated 5.5 Fixed Freq Active high shutdown Yes Yes No No -30 85 WhiteLED Driver No LM2795
    LM27951 LM27951 4 Parallel 120 0.20% Switched Capacitor Multi-Gain 750 85 3 5.5 - Regulated 1.5 Fixed Freq Common cathode current source topology Yes No No No -40 85 WhiteLED Driver Yes LM27951
    LM27952 LM27952 4 Parallel 120 0.20% Switched Capacitor Multi-Gain 750 85 3 5.5 - - 1.3 Fixed Freq Common anode current sink topology Yes No No No -40 85 WhiteLED Driver Yes LM27952
    LM27953 LM27953 4 Parallel 80 0.60% Switched Capacitor 1.5x 500 80 2.7 5.5 - Unregulated 4.4 Fixed Freq Common anode current sink topology Yes No No No -30 85 WhiteLED Driver   LM27953
    LM27966 LM27966 6 Parallel 180 0.30% Switched Capacitor Multi-Gain 1270 91 2.7 5.5 Undefined Regulated 2.9 Fixed Freq Current regulated outputs, Common anode current sink topology, I2C compatible interface Yes Yes No No -30 85 WhiteLED Driver Yes LM27966
    LM2796 LM2796 7 Parallel 140 1% Switched Capacitor 1.5x 500 80 2.7 5.5 - Unregulated 3.5 Fixed Freq LEDs controlled in 2 groups: 3 and 4 LEDs; softstart Yes No No No -30 85 WhiteLED Driver Yes LM2796
    LM27961 LM27961 7 Parallel 140 0.60% Switched Capacitor 1.5x 500 80 2.7 5.5 - Unregulated 4.4 Fixed Freq 4 outputs are common cathode current sink topology, 3 outputs are common anode current source topology, 2 sets of enables and current setting resistors with 0.6% LED current matching Yes No No No -30 85 WhiteLED Driver No LM27961
    LM27964 LM27964 7 Parallel 180 0.30% Switched Capacitor Multi-Gain 700 87 2.7 5.5 Undefined Regulated 1.3 Fixed Freq Current regulated output, 3 sets of outputs are common cathode using current sink topology, control by an I2C compatible interface Yes No No No -30 85 WhiteLED Driver No LM27964
    LM2756 LM2756 8 Parallel 180 0.50% Switched Capacitor Multi-Gain 1300 92 2.7 5.5 Undefined Regulated 2.1 Fixed Freq Programmable Auto Dimming No Yes No No -30 85 WhiteLED Driver Yes LM2756
    LM27965 LM27965 9 Parallel 180 0.30% Switched Capacitor Multi-Gain 1270 91 2.7 5.5 Undefined Regulated 2.9 Fixed Freq Current regulated outputs, Common anode current sink topology, I2C compatible interface Yes Yes No No -30 85 WhiteLED Driver Yes LM27965
    LM2751 LM2751           725 92 2.8 5.5         LED Driver, Inductorless regulated boost converter, 1.5x and 2x gains No No No No -40 85 Switched Cap Regulator No LM2751
    LM2757 LM2757             90 2.7 5.5         Inductorless regulated boost converter, Low noise, constant voltage source with high impedance output during shutdown for USB-OTG applications         -30 85 Switched Cap Regulator Yes LM2757
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