The LM3402/HV are monolithic switching regulators designed to deliver constant currents to high power LEDs. Ideal for automotive, industrial, and general lighting applications, they contain a high-side N-channel MOSFET switch with a current limit of 735 mA (typical) for step-down (Buck) regulators. Hysteretic control with controlled ON-time coupled with an external resistor allow the converter output voltage to adjust as needed to deliver a constant current to series and series - parallel connected arrays of LEDs of varying number and type, LED dimming by pulse width modulation (PWM), broken/open LED protection, low-power shutdown and thermal shutdown complete the feature set.
For all available packages, see the orderable addendum at the end of the data sheet.| Tipo | Título | Fecha | ||
|---|---|---|---|---|
| * | Data sheet | LM3402/HV 0.5-A Constant Current Buck Regulator for Driving High Power LEDs datasheet (Rev. F) | PDF | HTML | 29 oct 2015 |
| White paper | Common LED Functions and LED Driver Design Considerations | 21 sep 2020 | ||
| Application note | AN-1656 Design Challenges of Switching LED Drivers (Rev. A) | 03 may 2013 | ||
| EVM User's guide | AN-1585 LM3402 and LM3404 High Power PSOP-8 Evaluation Board (Rev. C) | 01 may 2013 | ||
| User guide | LM3402/LM3404 Fast Dimming and True Constant LED Current Evaluation Board (Rev. E) | 01 may 2013 | ||
| Application note | AN-1982 Small, Wide Input Voltage Range LM2842 Keeps LEDs Cool (Rev. A) | 23 abr 2013 |
Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.
The LM3404/04HV are buck regulator derived controlled current sources designed to drive a series string of high power, high brightness LEDs (HBLEDs) at forward currents of up to 1.0A (LM3404/04HV). This evaluation board demonstrates the enhanced thermal performance, fast dimming and true constant (...)
The LM3402/02HV and LM3404/04HV are buck regulator derived controlled current sources designed to drive a series string of high power, high brightness LEDs (HBLEDs) such as the Luxeon™ K2 Emitter at forward currents of up to 0.5A (LM3402/02HV) or 1.0A (LM3404/04HV). This evaluation board (...)
| Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
|---|---|---|
| HSOIC (DDA) | 8 | Ultra Librarian |
| VSSOP (DGK) | 8 | Ultra Librarian |
Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.
El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.
Si tiene preguntas sobre la calidad, el paquete o el pedido de productos de TI, consulte el soporte de TI.