| Part No.： | LT3591 |
| Page： | 16 Pages |
| Size： | 260 KB |
| Manufacturer： | Linear Technology |
| Logo： |  |
| Views： | 1 |
| Update Time： | 2024-12-05 10:05:47 |
| DataSheet： | Download |
| Part No. | Packing | SPQ | Marking | MSL | Pins | Temp Range | Package Description | Buy |
| LT3591EDDB#PBF | Tube | LCPG | 1 | 8 | -40°C ~125°C | 8-Lead DFN (3mm x 2mm) | ||
| LT3591EDDB#TRPBF | Reel | 2500 | LCPG | 1 | 8 | -40°C ~125°C | 8-Lead DFN (3mm x 2mm) | |
| LT3591EDDB#TRMPBF | Reel | 500 | LCPG | 1 | 8 | -40°C ~125°C | 8-Lead DFN (3mm x 2mm) |
The LT3591 is a fixed frequency step-up DC/DC converter specifically designed to drive up to ten white LEDs in series from a Li-Ion cell. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. The device features a unique high side LED current sense that enables the part to function as a “one wire current source;” one side of the LED string can be returned to ground anywhere, allowing a simpler one wire LED connection. Traditional LED drivers use a grounded resistor to sense LED current, requiring a 2-wire connection to the LED string.
The high switching frequency allows the use of tiny inductors and capacitors. A single pin performs both shutdown and accurate LED dimming control. Few external components are needed: open-LED protection and the Schottky diode are all contained inside a low profile 3mm × 2mm DFN package.
