Datasheet Linear Technology LT3909
| Manufacturer | Linear Technology |
| Series | LT3909 |
2-String × 60mA, 2MHz Step-Up LED Driver with ±2% Current Matching
Datasheets
LT3909 - 2-String × 60mA, 2MHz Step-Up LED Driver with ±2% Current Matching
PDF, 1.4 Mb, Revision: B, File uploaded: Oct 4, 2017
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Prices
Packaging
| LT3909EDD#PBF | LT3909EDD#TRPBF | LT3909EMSE#PBF | LT3909EMSE#TRPBF | LT3909IDD#PBF | LT3909IDD#TRPBF | LT3909IMSE#PBF | LT3909IMSE#TRPBF | |
|---|---|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Package | 3x3 DFN-12 Package Outline Drawing | 3x3 DFN-12 Package Outline Drawing | MS-12E Package Outline Drawing | MS-12E Package Outline Drawing | 3x3 DFN-12 Package Outline Drawing | 3x3 DFN-12 Package Outline Drawing | MS-12E Package Outline Drawing | MS-12E Package Outline Drawing |
| Package Code | DD | DD | MSE | MSE | DD | DD | MSE | MSE |
| Package Index | 05-08-1725 | 05-08-1725 | 05-08-1666 | 05-08-1666 | 05-08-1725 | 05-08-1725 | 05-08-1666 | 05-08-1666 |
| Pin Count | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
Parametrics
| Parameters / Models | LT3909EDD#PBF | LT3909EDD#TRPBF | LT3909EMSE#PBF | LT3909EMSE#TRPBF | LT3909IDD#PBF | LT3909IDD#TRPBF | LT3909IMSE#PBF | LT3909IMSE#TRPBF |
|---|---|---|---|---|---|---|---|---|
| Architecture | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode |
| Demo Boards | DC2176A | DC2176A | DC2176A | DC2176A | DC2176A | DC2176A | DC2176A | DC2176A |
| Design Tools | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File |
| Dimming | 40,000:1 PWM, 10:1 Analog | 40,000:1 PWM, 10:1 Analog | 40,000:1 PWM, 10:1 Analog | 40,000:1 PWM, 10:1 Analog | 40,000:1 PWM, 10:1 Analog | 40,000:1 PWM, 10:1 Analog | 40,000:1 PWM, 10:1 Analog | 40,000:1 PWM, 10:1 Analog |
| Export Control | no | no | no | no | no | no | no | no |
| Features | Integrated Schottky | Integrated Schottky | Integrated Schottky | Integrated Schottky | Integrated Schottky | Integrated Schottky | Integrated Schottky | Integrated Schottky |
| Frequency, kHz | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 |
| Ishutdown, µA | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Isupply, mA | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 |
| Max Number of LEDs | 2 x 10 | 2 x 10 | 2 x 10 | 2 x 10 | 2 x 10 | 2 x 10 | 2 x 10 | 2 x 10 |
| Monolithic | yes | yes | yes | yes | yes | yes | yes | yes |
| Number of Outputs | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Operating Temperature Range, °C | 0 to 85 | 0 to 85 | 0 to 85 | 0 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
| Switch Current, A | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 |
| Synchronous | no | no | no | no | no | no | no | no |
| Topology | Boost, LED Driver | Boost, LED Driver | Boost, LED Driver | Boost, LED Driver | Boost, LED Driver | Boost, LED Driver | Boost, LED Driver | Boost, LED Driver |
| Vin Max, V | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
| Vin Min, V | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 |
| Vout Max, V | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 |
Eco Plan
| LT3909EDD#PBF | LT3909EDD#TRPBF | LT3909EMSE#PBF | LT3909EMSE#TRPBF | LT3909IDD#PBF | LT3909IDD#TRPBF | LT3909IMSE#PBF | LT3909IMSE#TRPBF | |
|---|---|---|---|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Model Line
Series: LT3909 (8)
Manufacturer's Classification
- Power Management > LED Driver ICs > Step-Up (Boost) LED Drivers
- Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) LED Drivers
