Datasheet Texas Instruments LM5121 — Ficha de datos
| Fabricante | Texas Instruments |
| Serie | LM5121 |
3-65V Wide Vin, Boost sincrónico en modo actual con control de interruptor de desconexión
Hojas de datos
LM5121/-Q1 Wide Input Synchronous Boost Controller with Disconnection Switch Control datasheet
PDF, 3.0 Mb, Revisión: C, Archivo publicado: jun 14, 2016
Extracto del documento
Precios
Estado
| LM5121MH/NOPB | LM5121MHE/NOPB | LM5121MHX/NOPB | |
|---|---|---|---|
| Estado del ciclo de vida | Activo (Recomendado para nuevos diseños) | Activo (Recomendado para nuevos diseños) | Activo (Recomendado para nuevos diseños) |
| Disponibilidad de muestra del fabricante | Sí | No | No |
Embalaje
| LM5121MH/NOPB | LM5121MHE/NOPB | LM5121MHX/NOPB | |
|---|---|---|---|
| N | 1 | 2 | 3 |
| Pin | 20 | 20 | 20 |
| Package Type | PWP | PWP | PWP |
| Industry STD Term | HTSSOP | HTSSOP | HTSSOP |
| JEDEC Code | R-PDSO-G | R-PDSO-G | R-PDSO-G |
| Package QTY | 73 | 250 | 2500 |
| Carrier | TUBE | SMALL T&R | LARGE T&R |
| Device Marking | LM5121 | LM5121 | MH |
| Width (mm) | 4.4 | 4.4 | 4.4 |
| Length (mm) | 6.5 | 6.5 | 6.5 |
| Thickness (mm) | 1 | 1 | 1 |
| Pitch (mm) | .65 | .65 | .65 |
| Max Height (mm) | 1.2 | 1.2 | 1.2 |
| Mechanical Data | Descargar | Descargar | Descargar |
Paramétricos
| Parameters / Models | LM5121MH/NOPB | LM5121MHE/NOPB | LM5121MHX/NOPB |
|---|---|---|---|
| Duty Cycle(Max), % | 100 | 100 | 100 |
| Iout(Max), A | 20 | 20 | 20 |
| Iq(Typ), mA | 4 | 4 | 4 |
| Operating Temperature Range, C | -40 to 125 | -40 to 125 | -40 to 125 |
| Package Group | HTSSOP | HTSSOP | HTSSOP |
| Rating | Catalog | Catalog | Catalog |
| Regulated Outputs | 1 | 1 | 1 |
| Special Features | Adjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Synchronous Rectification,UVLO Adjustable | Adjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Synchronous Rectification,UVLO Adjustable | Adjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Synchronous Rectification,UVLO Adjustable |
| Switch Current Limit(Typ), A | 20 | 20 | 20 |
| Switching Frequency(Max), kHz | 1000 | 1000 | 1000 |
| Switching Frequency(Min), kHz | 50 | 50 | 50 |
| Type | Controller | Controller | Controller |
| Vin(Max), V | 65 | 65 | 65 |
| Vin(Min), V | 3 | 3 | 3 |
| Vout(Max), V | 100 | 100 | 100 |
| Vout(Min), V | 3 | 3 | 3 |
Plan ecológico
| LM5121MH/NOPB | LM5121MHE/NOPB | LM5121MHX/NOPB | |
|---|---|---|---|
| RoHS | Obediente | Obediente | Obediente |
Notas de aplicación
- Automated Frequency Response AnalyzerPDF, 939 Kb, Archivo publicado: oct 9, 2013
This application report discusses a new method of doing stability Analysis testing by using basic labequipment, while not requiring any specific instruments. - Designing the front-end DC/DC conversion stage to withstand automotive transientPDF, 336 Kb, Archivo publicado: enero 18, 2017
- Practical Feedback Loop Analysis for Current-Mode Boost ConverterPDF, 557 Kb, Archivo publicado: marzo 7, 2014
- Designing Fault Protection Circuits Using Wide VIN LM5121PDF, 186 Kb, Archivo publicado: enero 12, 2015
Battery powered systems or systems with low input voltage supplies may have loads that require higher voltage outputs. A boost converter is a usual choice for non-isolated applications; however, boost converters do not naturally provide system protection to downstream circuitry due to the pass path from input to output. Problems due to this pass path are now resolved with the LM5121 boost controll
Linea modelo
Serie: LM5121 (3)
Clasificación del fabricante
- Semiconductors> Power Management> Non-isolated DC/DC Switching Regulator> Step-Up (Boost)> Boost Controller (External Switch)