TPS40190
Controlador reductor síncrono de 4.5 V a 15 V y 20 A
Se encuentra disponible una versión más nueva de este producto
TPS40190
- Input Operating Voltage Range: 4.5 V to 15 V
- Reference 0.591 V ±1%
- Voltage Mode Control
- Internal 5-V Regulator For Internal Housekeeping, Driver Power and Light External Loads
- Selectable Short-Circuit Protection Thresholds
- Pre-Bias Ouput Safe
- Fixed Switching Frequency of 300 kHz
- Internal Soft Start
- Small 3 mm × 3 mm, 10-Pin SON Package
- Bootstrapped Drivers for N-Channel MOSFET
- Adaptive Anti-Cross Conduction
- Internal Bootstrap Diode
- 1.2-A Drivers for Decreased Switching Loss
The TPS40190 is a cost-optimized synchronous buck controller that operates from 4.5 V to 15 V nominally, and implements a fixed frequency voltage mode power supply. The controller uses an adaptive anti-cross conduction scheme to prevent both the high-side and the rectifier MOSFET to be turned on at the same time, preventing shoot through current in the two MOSFETs.
The controller also provides a short circuit protection threshold that is user selectable between one of three values. The protection level is set with a single external resistor connected from COMP to GND. During start-up, the impedance connected to COMP is sensed, and the information is decoded to select one of the three thresholds. When the controller senses an output short circuit, both MOSFETs are turned off and a timeout period is observed before attempting to restart. This provides limited power dissipation in the event of a sustained fault.
The TPS40190 provides strong drivers to minimize switching losses in the power stage, reducing heat build up in the MOSFETs and allowing larger MOSFETs to be used without undue switching time penalty.
Documentación técnica
Tipo | Título | Fecha | ||
---|---|---|---|---|
* | Data sheet | TPS40190 4.5-V to 15-V Input, Voltage-Mode, Synchronous Buck Controller datasheet (Rev. D) | PDF | HTML | 06 jun 2019 |
User guide | TPS40190 Buck Controller Evaluation Module User's Guide (Rev. A) | PDF | HTML | 10 ene 2022 | |
Selection guide | Power Management Guide 2018 (Rev. R) | 25 jun 2018 | ||
Application note | Enabling Multiple TPS4019x Devices | 29 mar 2012 | ||
More literature | Исходные проекты ll | 13 may 2011 | ||
More literature | TPS40190DRC Test Report | 15 feb 2008 |
Diseño y desarrollo
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.
TPS40190 TINA-TI Average Reference Design (Rev. C)
TPS40190 TINA-TI Average Spice Model (Rev. A)
TPS40190 TINA-TI Transient Reference Design (Rev. B)
TPS40190 TINA-TI Transient Spice Model (Rev. B)
TPS40190 Unencrypted PSpice Average Model Package (Rev. A)
TPS40190 Unencrypted PSpice Transient Model Package (Rev. D)
Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
---|---|---|
VSON (DRC) | 10 | Ultra Librarian |
Pedidos y calidad
- RoHS
- REACH
- Marcado del dispositivo
- Acabado de plomo/material de la bola
- Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
- Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
- Contenido del material
- Resumen de calificaciones
- Monitoreo continuo de confiabilidad
- Lugar de fabricación
- Lugar de ensamblaje
Soporte y capacitación
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