LM3410 is a high frequency, high performance LED driver from Texas Instruments, available in 5 pin SOT23, 6 pin LLP and 8 pin eMSOP packages. It features an internal 170 mΩ NMOS switch that can drive 2.8A typical peak currents. The switching frequency can be internally set to either 525 kHz or 1.60 MHz, allowing for the use of extremely small surface mount inductors and chip capacitors. Even though the operating frequency is high, efficiencies up to 88% are easy to achieve. The LM3410 also features an ultra-low standby current of 80 nA. It utilizes current-mode control and internal compensation to provide high-performance over a wide range of operating conditions. Additional features include dimming, cycle-by-cycle current limit, and thermal shutdown.
The LM3410 PowerWise® LED driver is a monolithic, high‑frequency PWM DC/DC converter available in SOT23‑5, LLP‑6, and eMSOP‑8 packages. It operates with an input voltage range of 2.7 V to 5.5 V and offers selectable switching frequencies of 525 kHz or 1.6 MHz, enabling the use of very small inductors and capacitors.
The datasheet includes absolute maximum ratings, electrical characteristics, pin descriptions for each package, typical performance graphs, and a theory of operation. It also provides application circuits for boost and SEPIC configurations, along with ordering information for the various package options.
| Input voltage range | 2.7 V to 5.5 V |
|---|---|
| Peak switch current | 2.1 A |
| Shutdown standby current | 80 nA |
| Feedback voltage | 190 mV |
The LM3410 operates with an input voltage from 2.7 V to 5.5 V.
In shutdown, the LM3410 draws an ultra‑low standby current of 80 nA.
The LM3410 can deliver a peak switch current of up to 2.1 A.