Datasheet Texas Instruments LM3450
| Manufacturer | Texas Instruments |
| Series | LM3450 |
LED Drivers with Active Power Factor Correction and Phase Dimming Decoder
Datasheets
LM3450/A LED Drivers with Active Power Factor Correction & Phase Dimming Decoder datasheet
PDF, 1.1 Mb, Revision: D, File published: May 1, 2013
Extract from the document
Status
| LM3450AMT/NOPB | LM3450AMTX/NOPB | LM3450MT/NOPB | LM3450MTX/NOPB | |
|---|---|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes | No | Yes | No |
Packaging
| LM3450AMT/NOPB | LM3450AMTX/NOPB | LM3450MT/NOPB | LM3450MTX/NOPB | |
|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 |
| Pin | 16 | 16 | 16 | 16 |
| Package Type | PW | PW | PW | PW |
| Industry STD Term | TSSOP | TSSOP | TSSOP | TSSOP |
| JEDEC Code | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G |
| Package QTY | 92 | 2500 | 92 | 2500 |
| Carrier | TUBE | LARGE T&R | TUBE | LARGE T&R |
| Device Marking | LM3450 | LM3450 | LM3450 | LM3450 |
| Width (mm) | 4.4 | 4.4 | 4.4 | 4.4 |
| Length (mm) | 5 | 5 | 5 | 5 |
| Thickness (mm) | 1 | 1 | 1 | 1 |
| Pitch (mm) | .65 | .65 | .65 | .65 |
| Max Height (mm) | 1.2 | 1.2 | 1.2 | 1.2 |
| Mechanical Data | Download | Download | Download | Download |
Parametrics
| Parameters / Models | LM3450AMT/NOPB | LM3450AMTX/NOPB | LM3450MT/NOPB | LM3450MTX/NOPB |
|---|---|---|---|---|
| Dimming Method | Forward Phase (Triac),Reverse Phase | Forward Phase (Triac),Reverse Phase | Forward Phase (Triac),Reverse Phase | Forward Phase (Triac),Reverse Phase |
| Input Voltage, Type | AC/DC | AC/DC | AC/DC | AC/DC |
| Iout(Max), A | 2 | 2 | 2 | 2 |
| Iq(Typ), mA | 1.6 | 1.6 | 1.6 | 1.6 |
| Operating Temperature Range, C | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
| Package Group | TSSOP | TSSOP | TSSOP | TSSOP |
| Package Size: mm2:W x L, PKG | 16TSSOP: 32 mm2: 6.4 x 5(TSSOP) | 16TSSOP: 32 mm2: 6.4 x 5(TSSOP) | 16TSSOP: 32 mm2: 6.4 x 5(TSSOP) | 16TSSOP: 32 mm2: 6.4 x 5(TSSOP) |
| Power Factor Correction, Min | Active | Active | Active | Active |
| Rating | Catalog | Catalog | Catalog | Catalog |
| Regulated Outputs | 1 | 1 | 1 | 1 |
| Special Features | Adjustable Switch Frequency,Enable/Shutdown,Thermal Shutdown | Adjustable Switch Frequency,Enable/Shutdown,Thermal Shutdown | Adjustable Switch Frequency,Enable/Shutdown,Thermal Shutdown | Adjustable Switch Frequency,Enable/Shutdown,Thermal Shutdown |
| Switching Frequency(Max), kHz | 120 | 120 | 120 | 120 |
| Switching Frequency(Min), kHz | 60 | 60 | 60 | 60 |
| Topology | Boost,Flyback | Boost,Flyback | Boost,Flyback | Boost,Flyback |
| Type | Inductive | Inductive | Inductive | Inductive |
| Vin(Max), V | 20 | 20 | 20 | 20 |
| Vin(Min), V | 85 | 85 | 85 | 85 |
| Vout(Max), V | 60 | 60 | 60 | 60 |
| Vout(Min), V | 9 | 9 | 9 | 9 |
| Vref, V | 0.2 | 0.2 | 0.2 | 0.2 |
Eco Plan
| LM3450AMT/NOPB | LM3450AMTX/NOPB | LM3450MT/NOPB | LM3450MTX/NOPB | |
|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant |
Application Notes
- LM3450_A Design Calculator InstructionsPDF, 534 Kb, File published: Apr 19, 2012
LM3450_50A Design Calculator Instructions - AN-1656 Design Challenges of Switching LED Drivers (Rev. A)PDF, 171 Kb, Revision: A, File published: May 3, 2013
Using a switching regulator as an LED driver requires the designer to convert a voltage regulator into acurrent regulator. Beyond the challenge of changing the feedback system to control current, the LEDsthemselves present a load characteristic that is much different than the digital devices and other loads thatrequire constant voltage. The LED WEBENCHВ® online design environment predicts and
Model Line
Series: LM3450 (4)
Manufacturer's Classification
- Semiconductors> Power Management> LED Driver> LED Lighting - Illumination