升压型 LED 驱动器
Analog Devices 的升压型稳压器 LED 驱动器可产生驱动多个串联 LED 所需的高电压，并确保 LED 之间的电流 (因而包括亮度) 匹配。ADI 的升压型稳压器 LED 驱动器能提供最高的效率、最低的噪声和最小的占板面积。其他特点包括集成化肖特基二极管、准确的 LED 电流匹配、以及多输出能力。
产品选型表
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设计笔记
- DN557 - 低 EMI LED 驱动器具有用于汽车照明的 2A、40V、集成型同步开关 PDF
- DN556 - 具集成型电压限制功能的 3A、1MHz 降压模式 LED 驱动器 PDF
- DN376 - Monolithic Converter Drives High Power LEDs PDF
- DN252 - Current-Limited DC/DC Converter Simplifies USB Power Supplies PDF
- DN461 - 100V 控制器几乎可从任何输入来驱动高功率 LED 串 PDF
技术文章
- 低 EMI LED 驱动器具有用于汽车照明的 2A、40V、集成型同步开关
- 具集成型电压限制功能的 3A、1MHz 降压模式 LED 驱动器
- 扩频频率调制以降低 EMI
- One LED Driver Is All You Need for Automotive LED Headlight Clusters (LT3795)
- 4mm × 7mm IC Produces Seven Regulated Outputs and a Dual-String LED Driver
非常见问题
升压型 LED 驱动器
| SortOrder | Part# | Number of Outputs | Vin (min) (V) | Vin (max) (V) | Switch Current (typ) (A) | Vout Max (typ) (V) | Topology | Monolithic | Price (1000+) ($ US) |
|---|---|---|---|---|---|---|---|---|---|
| 1 | LT3966 | 4 | 3 | 60 | 1.6 | 52 | Boost, Buck, Buck-Boost, LED Driver | Yes | $3.95 (LT3966EUJ#PBF) |
| 2 | LT3950 | 1 | 3 | 60 | 1.5 | 60 | Boost, Buck, Buck-Boost, LED Driver, Sepic | Yes | $1.95 (LT3950EMSE#PBF) |
| 3 | LT3952A | 1 | 3 | 42 | 4.5 | 60 | Boost, Buck, Buck-Boost, LED Driver | Yes | $2.95 (LT3952AEFE#PBF) |
| 4 | LT3762 | 1 | 2.5 | 38.5 | 10 | 60 | Boost, LED Driver | No | $2.71 (LT3762EUFD#PBF) |
| 5 | LT3922-1 | 1 | 2.8 | 36 | 2.3 | 40 | Boost, Buck, Buck-Boost | Yes | $2.71 (LT3922EUFD-1#PBF) |
| 6 | LT3922 | 1 | 2.8 | 36 | 2.3 | 40 | Boost, Buck, Buck-Boost | Yes | $2.71 (LT3922EUFD#PBF) |
| 7 | LT3761A | 1 | 4.5 | 60 | 25 | 100 | Boost, Buck, Buck-Boost, LED Driver, Sepic | No | $3.20 (LT3761AEMSE#PBF) |
| 8 | LT3909 | 2 | 2.9 | 40 | 1.1 | 36 | Boost, LED Driver | Yes | $2.50 (LT3909EDD#PBF) |
| 9 | LT3761 | 1 | 4.5 | 60 | 25 | 100 | Boost, Buck, Buck-Boost, LED Driver, Sepic | No | $3.20 (LT3761EMSE#PBF) |
| 10 | LT3795 | 1 | 4.5 | 110 | 25 | 110 | Boost, Buck, Buck-Boost, LED Driver, Sepic | No | $3.45 (LT3795EFE#PBF) |
| 11 | LT3955 | 1 | 4.5 | 60 | 4.2 | 80 | Boost, Buck, Buck-Boost, LED Driver, Sepic | Yes | $3.75 (LT3955EUHE#PBF) |
| 12 | LT3954 | 1 | 4.5 | 40 | 6.3 | 40 | Boost, Buck, Buck-Boost, LED Driver, Sepic | Yes | $3.60 (LT3954EUHE#PBF) |
| 13 | LT3797 | 3 | 2.5 | 40 | 20 | 100 | Boost, Buck, Buck-Boost, LED Driver, Sepic | No | $4.95 (LT3797ELXE#PBF) |
| 14 | LT3796 | 1 | 6 | 100 | 25 | 100 | Boost, Buck, Buck-Boost, LED Driver, Sepic | No | $3.45 (LT3796EFE#PBF) |
| 15 | LTM8042-1 | 1 | 3 | 30 | 350m | 32 | Boost, Buck, LED Driver | Yes | $8.76 (LTM8042EV-1#PBF) |
| 16 | LTM8042 | 1 | 3 | 30 | 1 | 32 | Boost, Buck, LED Driver | Yes | $8.76 (LTM8042EV#PBF) |
| 17 | LTC3675 | 7 | 2.7 | 5.5 | 2.8 | 5.5 | Buck, LED Driver | Yes | $5.05 (LTC3675EUFF#PBF) |
| 18 | ADP8863 | 7 | 2.5 | 5.5 | - | 5.5 | Boost, LED Driver | Yes | $0.99 (ADP8863ACBZ-R7) |
| 19 | ADP8861 | 7 | 2.5 | 5.5 | - | 5.5 | Boost, LED Driver | Yes | $0.99 (ADP8861ACBZ-R7) |
| 20 | LT3760 | 8 | 6 | 40 | 500m | 45 | Boost, LED Driver | No | $4.25 (LT3760EFE#PBF) |
| 21 | LT3754 | 16 | 6 | 40 | 600m | 45 | Boost, LED Driver | No | $4.25 (LT3754EUH#PBF) |
| 22 | LT3519 | 1 | 3 | 30 | 980m | 45 | Boost, Buck, Buck-Boost, LED Driver, Sepic | Yes | $2.50 (LT3519EMS#PBF) |
| 23 | ADP8860 | 7 | 2.5 | 5.5 | - | 5.5 | Boost, LED Driver | Yes | $1.02 (ADP8860ACBZ-R7) |
| 24 | LT3956 | 1 | 4.5 | 80 | 3.3 | 80 | Boost, Buck, Buck-Boost, Flyback, LED Driver, Sepic | Yes | $3.50 (LT3956EUHE#PBF) |
| 25 | LT3598 | 6 | 3.2 | 30 | 330m | 44 | Boost, LED Driver, Sepic | Yes | $2.95 (LT3598EUF#PBF) |
| 26 | LT3756 | 1 | 6 | 100 | 25 | 100 | Boost, Buck, Buck-Boost, LED Driver, Sepic | No | $2.90 (LT3756EUD#PBF) |
| 27 | LT3755 | 1 | 4.5 | 40 | 25 | 75 | Boost, Buck, Buck-Boost, LED Driver, Sepic | No | $2.75 (LT3755EUD#PBF) |
| 28 | LT3599 | 4 | 3 | 30 | 625m | 44 | Boost, LED Driver, Sepic | Yes | $3.25 (LT3599EUH#PBF) |
| 29 | LT3492 | 3 | 3 | 30 | 1 | 60 | Boost, Buck, Buck-Boost, LED Driver | Yes | $3.70 (LT3492EUFD#PBF) |
| 30 | LT3593 | 1 | 2.7 | 5.5 | 700m | 45 | Boost, LED Driver | Yes | $1.40 (LT3593EDC#TRPBF) |
| 31 | LT3517 | 1 | 3 | 30 | 1.9 | 40 | Boost, Buck, Buck-Boost, LED Driver | Yes | $2.70 (LT3517EUF#PBF) |
| 32 | LT3518 | 1 | 3 | 30 | 2.8 | 45 | Boost, Buck, Buck-Boost, LED Driver | Yes | $2.95 (LT3518EUF#PBF) |
| 33 | LT3498 | 2 | 2.5 | 12 | 425m | 32 | Boost, LED Driver | Yes | $1.95 (LT3498EDDB#TRPBF) |
| 34 | LT3496 | 3 | 3 | 30 | 1 | 45 | Boost, Buck, Buck-Boost, LED Driver | Yes | $3.50 (LT3496EUFD#PBF) |
| 35 | LT3476 | 4 | 2.8 | 16 | 2 | 36 | Boost, Buck, Buck-Boost, LED Driver | Yes | $4.64 (LT3476EUHF#PBF) |
| 36 | LT3591 | 1 | 2.5 | 12 | 800m | 42 | Boost, LED Driver | Yes | $1.40 (LT3591EDDB#TRPBF) |
| 37 | LT3497 | 2 | 2.5 | 10 | 400m | 35 | Boost, LED Driver | Yes | $1.70 (LT3497EDDB#TRPBF) |
| 38 | LT3478 | 1 | 2.8 | 36 | 6.3 | 42 | Boost, Buck, Buck-Boost, LED Driver | Yes | $3.60 (LT3478EFE#PBF) |
| 39 | LTC3783 | 1 | 3 | 36 | 25 | 100 | Boost, Flyback, LED Driver, Sepic | No | $2.85 (LTC3783EDHD#PBF) |
| 40 | LT3486 | 2 | 2.4 | 24 | 1.3 | 35.4 | Boost, LED Driver | Yes | $2.50 (LT3486EDHC#PBF) |
| 41 | LTC3490 | 1 | 1 | 3.2 | 2 | 4 | Boost, LED Driver | Yes | $2.10 (LTC3490EDD#PBF) |
| 42 | LT3477 | 1 | 2.3 | 25 | 4 | 40 | Boost, Buck, Buck-Boost, LED Driver | Yes | $3.15 (LT3477EUF#PBF) |
| 43 | LT3466-1 | 2 | 2.7 | 24 | 400m | 39.5 | Boost, LED Driver | Yes | $1.95 (LT3466EDD-1#PBF) |
| 44 | LT3491 | 1 | 2.5 | 12 | 350m | 24 | Boost, LED Driver | Yes | $1.30 (LT3491EDC#TRPBF) |
| 45 | LT1942 | 4 | 2.6 | 16 | 750m | 36 | Boost, Flyback, Inverting, LED Driver, Sepic | Yes | $2.75 (LT1942EUF#PBF) |
| 46 | LT3465A | 1 | 2.7 | 16 | 340m | 30 | Boost, LED Driver | Yes | $1.41 (LT3465AES6#TRPBF) |
| 47 | LT3465 | 1 | 2.7 | 16 | 340m | 30 | Boost, LED Driver | Yes | $1.41 (LT3465ES6#TRPBF) |
| 48 | LT3466 | 2 | 2.7 | 24 | 400m | 39.5 | Boost, LED Driver | Yes | $2.20 (LT3466EDD#PBF) |
| 49 | LT1937 | 1 | 2.5 | 10 | 320m | 36 | Boost, LED Driver | Yes | $1.36 (LT1937ES5#TRPBF) |
| 50 | LT1932 | 1 | 1 | 10 | 550m | 36 | Boost, LED Driver | Yes | $1.81 (LT1932ES6#TRPBF) |
| 51 | LT1618 | 1 | 1.6 | 18 | 2 | 36 | Boost, Flyback, Sepic | Yes | $1.75 (LT1618EDD#PBF) |
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