Description
LM3405AXMK/NOPB Texas Instruments - Yeehing Electronics
1.6-MHz, 1-A constant current buck LED driver with internal compensation
Pricing (USD)
| Quantity | Unit Price |
| 1 — 99 | 0.538 |
| 100 — 249 | 0.444 |
| 250 — 999 | 0.319 |
| 1,000 + | 0.17 |
The above prices are for reference only.
Specifications
| Manufacturer | Texas Instruments |
| Product Category | LED Lighting Drivers |
| RoHS | Y |
| Number of Channels | 1 Channel |
| Output Current | 1 A |
| Input Voltage | 3 V to 22 V |
| Operating Frequency | 1.2 MHz to 1.9 MHz |
| Supply Current - Max | 2.8 mA |
| Minimum Operating Temperature | - 40 C |
| Maximum Operating Temperature | + 125 C |
| Mounting Style | SMD/SMT |
| Package / Case | SOT-23-Thin-6 |
| Series | LM3405A |
| Packaging | Reel |
| Features | Enable/Shutdown, Integrated Switch, Thermal Shutdown |
| Height | 0.87 mm |
| Length | 2.97 mm |
| Operating Temperature Range | - 40 C to + 125 C |
| Output Type | Constant Current |
| Type | Inductive |
| Width | 1.65 mm |
| Brand | Texas Instruments |
| Topology | Buck |
| Dimming | PWM |
| Product Type | LED Lighting Drivers |
| Factory Pack Quantity | 1000 |
| Subcategory | Driver ICs |
| Unit Weight | 0.002963 oz |
For more information, please refer to datasheet
Documents
| LM3405AXMK/NOPB Datasheet |
More Information
The LM3405A is a 1-A constant current buck LED driver designed to provide a simple, high efficiency solution for driving high power LEDs. With a 0.205-V reference voltage feedback control to minimize power dissipation, an external resistor sets the current as needed for driving various types of LEDs. Switching frequency is internally set to 1.6 MHz, allowing small surface mount inductors and capacitors to be used. The LM3405A uses current-mode control and internal compensation offering ease of use and predictable, high performance regulation over a wide range of operating conditions. With a maximum input voltage of 22 V, the device can drive up to 5 High-Brightness LEDs in series at 1-A forward current, with the single LED forward voltage of approximately 3.7 V. Additional features include user accessible EN/DIM pin for enabling and PWM dimming of LEDs, thermal shutdown, cycle-by-cycle current limit and overcurrent protection.
