Datasheet Texas Instruments LM3405
| Manufacturer | Texas Instruments |
| Series | LM3405 |
1.6MHz 1A Constant Current Buck Regulator for Powering LEDs
Datasheets
LM3405 1.6-MHz, 1-A Constant Current Buck Regulator For Powering LEDS datasheet
PDF, 1.5 Mb, Revision: C, File published: Dec 23, 2016
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Status
| LM3405XMK/NOPB | LM3405XMKX/NOPB | |
|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes | No |
Packaging
| LM3405XMK/NOPB | LM3405XMKX/NOPB | |
|---|---|---|
| N | 1 | 2 |
| Pin | 6 | 6 |
| Package Type | DDC | DDC |
| Industry STD Term | SOT-23-THIN | SOT-23-THIN |
| JEDEC Code | R-PDSO-G | R-PDSO-G |
| Package QTY | 1000 | 3000 |
| Carrier | LARGE T&R | LARGE T&R |
| Device Marking | SPNB | SPNB |
| Width (mm) | 1.6 | 1.6 |
| Length (mm) | 2.9 | 2.9 |
| Thickness (mm) | .87 | .87 |
| Pitch (mm) | .95 | .95 |
| Max Height (mm) | 1.1 | 1.1 |
| Mechanical Data | Download | Download |
Parametrics
| Parameters / Models | LM3405XMK/NOPB | LM3405XMKX/NOPB |
|---|---|---|
| Dimming Method | PWM | PWM |
| Input Voltage, Type | DC/DC | DC/DC |
| Iout(Max), A | 1 | 1 |
| Iq(Typ), mA | 1.8 | 1.8 |
| Operating Temperature Range, C | -40 to 125 | -40 to 125 |
| Package Group | SOT-23-THIN | SOT-23-THIN |
| Package Size: mm2:W x L, PKG | 6SOT-23-THIN: 8 mm2: 2.8 x 2.9(SOT-23-THIN) | 6SOT-23-THIN: 8 mm2: 2.8 x 2.9(SOT-23-THIN) |
| Power Factor Correction, Min | N/A | N/A |
| Rating | Catalog | Catalog |
| Regulated Outputs | 1 | 1 |
| Special Features | Enable/Shutdown,Integrated Switch,Thermal Shutdown | Enable/Shutdown,Integrated Switch,Thermal Shutdown |
| Switching Frequency(Max), kHz | 1600 | 1600 |
| Switching Frequency(Min), kHz | 1600 | 1600 |
| Topology | Buck | Buck |
| Type | Converter,Inductive | Converter,Inductive |
| Vin(Max), V | 15 | 15 |
| Vin(Min), V | 3 | 3 |
| Vout(Max), V | 13.5 | 13.5 |
| Vout(Min), V | 0.2 | 0.2 |
| Vref, V | 0.205 | 0.205 |
Eco Plan
| LM3405XMK/NOPB | LM3405XMKX/NOPB | |
|---|---|---|
| RoHS | Compliant | Compliant |
Application Notes
- AN-1982 Small, Wide Input Voltage Range LM2842 Keeps LEDs Cool (Rev. A)PDF, 60 Kb, Revision: A, File published: Apr 23, 2013
The world seems to be poised to make the leap to LED lighting. Incandescent has been deemed tooinefficient, which it is, and fluorescent lighting often does not achieve the lifetime it claims. Fluorescentalso has another set of baggage, dangerous chemicals. So the logical choice that most people believe cantake the crown is high brightness (HB) LEDs. HBLEDs are becoming more attractive as th - 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 - Powering & Dimming High-Brightness LEDs w/ LM3405 Constant-Current Buck Reg (Rev. A)PDF, 158 Kb, Revision: A, File published: May 1, 2013
This application report describes a few of the many application solutions for the Texas InstrumentsLM3405 LED driver. The LM3405 device is offered in a 6-pin Thin-SOT (SOT) package and operates at aninternal switching frequency of 1.6 MHz, allowing the use of small-value inductors, thereby saving boardspace.
Model Line
Series: LM3405 (2)
Manufacturer's Classification
- Semiconductors> Power Management> LED Driver> LED Lighting - Illumination
