Typical Application for LT3743 High Current Synchronous Step-Down LED Driver with Three-State Control
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Description
- Typical Application for LT3743 is a fixed frequency synchronous step-down DC/DC controller designed to drive high current LEDs. The average current mode controller will maintain inductor current regulation over a wide output voltage range of 0V to (VIN - 2V). LED dimming is achieved through analog dimming on the CTRL_L, CTRL_H and CTRL_T pins and with PWM dimming on the PWM and CTRL_SEL pins. Through the use of externally switched load capacitors, the LT3743 is capable of changing regulated LED current levels within several us, providing accurate, high speed PWM dimming between two current levels. The switching frequency is programmable from 200kHz to 1MHz through an external resistor on the RT pin
Caractéristiques principales
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Input Voltage10 to 30 V
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Output Current20 A
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Number of Derived Elements1
Pièces en vedette (8)
| Pièce numéro | Fabricant | Type | Description | |||
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LT3743IUFD#PBF | Analog Devices | LED Drivers | LED Driver 10 Segment 1800uA Supply Current 28-Pin QFN EP Tube | Ajouter au panier | |
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LT3743EFE#PBF | Analog Devices | LED Drivers | LED Driver 10 Segment 1800uA Supply Current 28-Pin TSSOP EP Tube | Ajouter au panier | |
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LT3743EUFD#PBF | Analog Devices | LED Drivers | LED Driver 10 Segment 1800uA Supply Current 28-Pin QFN EP Tube | Ajouter au panier | |
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LT3743IUFD#TRPBF | Analog Devices | LED Drivers | LED Driver 10 Segment 1800uA Supply Current 28-Pin QFN EP T/R | Ajouter au panier | |
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LT3743EUFD#TRPBF | Analog Devices | LED Drivers | LED Driver 10 Segment 1800uA Supply Current 28-Pin QFN EP T/R | Ajouter au panier | |
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LT3743EFE#TRPBF | Analog Devices | LED Drivers | LED Driver 10 Segment 1800uA Supply Current 28-Pin TSSOP EP T/R | Ajouter au panier | |
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LT3743IFE#TRPBF | Analog Devices | LED Drivers | LED Driver 10 Segment 1800uA Supply Current 28-Pin TSSOP EP T/R | Ajouter au panier | |
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LT3743IFE#PBF | Analog Devices | LED Drivers | LED Driver 10 Segment 1800uA Supply Current 28-Pin TSSOP EP Tube | Ajouter au panier | |