Datasheet Linear Technology LT3475
| Manufacturer | Linear Technology |
| Series | LT3475 |
Dual Step-Down 1.5A LED Driver
Datasheets
Datasheet LT3475, LT3475-1
PDF, 249 Kb, Language: en, File uploaded: Oct 4, 2017, Pages: 20
Dual Step-Down 1.5A LED Driver
Dual Step-Down 1.5A LED Driver
Extract from the document
Prices
Packaging
| LT3475EFE#PBF | LT3475EFE#TRPBF | LT3475IFE#PBF | LT3475IFE#TRPBF | |
|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 |
| Package | TSSOP-20 Package Outline Drawing | TSSOP-20 Package Outline Drawing | TSSOP-20 Package Outline Drawing | TSSOP-20 Package Outline Drawing |
| Package Code | FE | FE | FE | FE |
| Package Index | 05-08-1663 (CB) | 05-08-1663 (CB) | 05-08-1663 (CB) | 05-08-1663 (CB) |
| Pin Count | 20 | 20 | 20 | 20 |
Parametrics
| Parameters / Models | LT3475EFE#PBF | LT3475EFE#TRPBF | LT3475IFE#PBF | LT3475IFE#TRPBF |
|---|---|---|---|---|
| Architecture | Improved Average Output Current Control | Improved Average Output Current Control | Improved Average Output Current Control | Improved Average Output Current Control |
| Demo Boards | DC1315A,DC923A | DC1315A,DC923A | DC1315A,DC923A | DC1315A,DC923A |
| Design Tools | LTspice File | LTspice File | LTspice File | LTspice File |
| Dimming | 3000:1 PWM, 10:1 Analog | 3000:1 PWM, 10:1 Analog | 3000:1 PWM, 10:1 Analog | 3000:1 PWM, 10:1 Analog |
| Export Control | no | no | no | no |
| Features | High Side Current Sense, Anti-Phase Switching, True Color PWM Dimming, Resistor Set Frequency | High Side Current Sense, Anti-Phase Switching, True Color PWM Dimming, Resistor Set Frequency | High Side Current Sense, Anti-Phase Switching, True Color PWM Dimming, Resistor Set Frequency | High Side Current Sense, Anti-Phase Switching, True Color PWM Dimming, Resistor Set Frequency |
| Frequency, kHz | 2000 | 2000 | 2000 | 2000 |
| Ishutdown, µA | 0.01 | 0.01 | 0.01 | 0.01 |
| Isupply, mA | 6 | 6 | 6 | 6 |
| Max Number of LEDs | 4 | 4 | 4 | 4 |
| Monolithic | yes | yes | yes | yes |
| Number of Outputs | 2 | 2 | 2 | 2 |
| Operating Temperature Range, °C | 0 to 85 | 0 to 85 | -40 to 85 | -40 to 85 |
| Output Current, A | 1.5 | 1.5 | 1.5 | 1.5 |
| Switch Current, A | 2.7 | 2.7 | 2.7 | 2.7 |
| Synchronous | no | no | no | no |
| Topology | Buck, LED Driver | Buck, LED Driver | Buck, LED Driver | Buck, LED Driver |
| Vin Max, V | 36 | 36 | 36 | 36 |
| Vin Min, V | 4 | 4 | 4 | 4 |
| Vout Max, V | 15 | 15 | 15 | 15 |
Eco Plan
| LT3475EFE#PBF | LT3475EFE#TRPBF | LT3475IFE#PBF | LT3475IFE#TRPBF | |
|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant |
Other Options
Design Notes
- High Voltage Buck Converters Drive High Power LEDs &mdash DN392PDF, 98 Kb, File published: Jun 1, 2006Extract from the document
Model Line
Series: LT3475 (4)
Manufacturer's Classification
- Power Management > LED Driver ICs > Step-Down (Buck) LED Drivers
