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DC/DC controllers

TPS40190

ACTIVO

Controlador reductor síncrono de 4.5 V a 15 V y 20 A

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TPS548B28 ACTIVO Convertidor reductor síncrono de 20 A con entrada de 2.7 V a 16 V, con detección remota y límite de Upgraded light-load efficiency, low IQ and extended positive operating temperature.

TPS40190

ACTIVO
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Detalles del producto

Rating Catalog Topology Buck Iout (max) (A) 20 Vin (max) (V) 15 Vin (min) (V) 4.5 Vout (max) (V) 12.75 Vout (min) (V) 0.6 Control mode Voltage mode Features Enable, Pre-Bias Start-Up, Synchronous Rectification Duty cycle (max) (%) 85 Iq (typ) (A) 0.0025 Number of phases 1 Operating temperature range (°C) -40 to 85
Rating Catalog Topology Buck Iout (max) (A) 20 Vin (max) (V) 15 Vin (min) (V) 4.5 Vout (max) (V) 12.75 Vout (min) (V) 0.6 Control mode Voltage mode Features Enable, Pre-Bias Start-Up, Synchronous Rectification Duty cycle (max) (%) 85 Iq (typ) (A) 0.0025 Number of phases 1 Operating temperature range (°C) -40 to 85
VSON (DRC) 10 9 mm² 3 x 3
  • 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
  • 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.

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.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato 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 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.

Modelo de simulación

TPS40190 TINA-TI Average Reference Design (Rev. C)

SLVC180C.TSC (383 KB) - TINA-TI Reference Design
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Modelo de simulación

TPS40190 TINA-TI Average Spice Model (Rev. A)

SLVM015A.ZIP (7 KB) - TINA-TI Spice Model
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Modelo de simulación

TPS40190 TINA-TI Transient Reference Design (Rev. B)

SLVM014B.TSC (610 KB) - TINA-TI Reference Design
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Modelo de simulación

TPS40190 TINA-TI Transient Spice Model (Rev. B)

SLVM016B.ZIP (37 KB) - TINA-TI Spice Model
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Modelo de simulación

TPS40190 Unencrypted PSpice Average Model Package (Rev. A)

SLUM371A.ZIP (17 KB) - PSpice Model
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Modelo de simulación

TPS40190 Unencrypted PSpice Transient Model Package (Rev. D)

SLVC179D.ZIP (40 KB) - PSpice Model
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Herramienta de cálculo

SLUC263 — Type III Compensation Calculation Tool

Productos y hardware compatibles

Productos y hardware compatibles
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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VSON (DRC) 10 Ultra Librarian
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Pedidos y calidad

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  • 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
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  • Lugar de fabricación
  • Lugar de ensamblaje

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