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TPS40170

ACTIVO

Controlador reductor PWM síncrono con entrada amplia de 4.5 V a 60 V

Se encuentra disponible una versión más nueva de este producto

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Detalles del producto

Rating Catalog Topology Buck Iout (max) (A) 20 Vin (max) (V) 60 Vin (min) (V) 4.5 Vout (max) (V) 57 Vout (min) (V) 0.6 Control mode Voltage mode Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking Duty cycle (max) (%) 95 Iq (typ) (A) 0.0045 Number of phases 1 Operating temperature range (°C) -40 to 125
Rating Catalog Topology Buck Iout (max) (A) 20 Vin (max) (V) 60 Vin (min) (V) 4.5 Vout (max) (V) 57 Vout (min) (V) 0.6 Control mode Voltage mode Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking Duty cycle (max) (%) 95 Iq (typ) (A) 0.0045 Number of phases 1 Operating temperature range (°C) -40 to 125
VQFN (RGY) 20 15.75 mm² 4.5 x 3.5
  • New, similar products available:
    • LM5145 75-V synchronous buck controller with wide input voltage and duty cycle ranges
    • LM5146 100-V synchronous buck DC/DC controller with wide duty-cycle range
  • Wide input voltage range from 4.5 V to 60 V
  • Reference voltage of 600 mV with 1% accuracy
  • Programmable UVLO and hysteresis
  • Voltage mode control with voltage feed forward
  • Programmable frequency between 100 kHz and 600 kHz
  • Bi-directional -frequency synchronization with primary and secondary option
  • Low-side FET sensing overcurrent protection and high-side FET sensing short-circuit protection with integrated thermal compensation
  • Programmable closed loop soft-start
  • Supports pre-biased outputs
  • Thermal shutdown at 165°C with hysteresis
  • Voltage tracking
  • Power good
  • ENABLE with 1-µA low current shutdown
  • LDO output of 8.0 V and 3.3 V
  • Integrated Bootstrap Diode
  • 20-Pin 3.5 mm × 4.5 mm VQFN (RGY) package
  • Create a Custom Design with WEBENCH Tools
  • New, similar products available:
    • LM5145 75-V synchronous buck controller with wide input voltage and duty cycle ranges
    • LM5146 100-V synchronous buck DC/DC controller with wide duty-cycle range
  • Wide input voltage range from 4.5 V to 60 V
  • Reference voltage of 600 mV with 1% accuracy
  • Programmable UVLO and hysteresis
  • Voltage mode control with voltage feed forward
  • Programmable frequency between 100 kHz and 600 kHz
  • Bi-directional -frequency synchronization with primary and secondary option
  • Low-side FET sensing overcurrent protection and high-side FET sensing short-circuit protection with integrated thermal compensation
  • Programmable closed loop soft-start
  • Supports pre-biased outputs
  • Thermal shutdown at 165°C with hysteresis
  • Voltage tracking
  • Power good
  • ENABLE with 1-µA low current shutdown
  • LDO output of 8.0 V and 3.3 V
  • Integrated Bootstrap Diode
  • 20-Pin 3.5 mm × 4.5 mm VQFN (RGY) package
  • Create a Custom Design with WEBENCH Tools

TPS40170 is a full-featured, synchronous PWM buck controller that operates at an input voltage between 4.5 V and 60  V and is optimized for high-power density, high-reliability DC-DC converter applications. The controller implements voltage-mode control with input voltage feed-forward compensation that enables instant response to input voltage change. The switching frequency is programmable from 100 kHz to 600 kHz.

The TPS40170 has a complete set of system protection and monitoring features such as programmable undervoltage lockout (UVLO), programmable overcurrent protection (OCP) by sensing the low-side FET, selectable short-circuit protection (SCP) by sensing the high-side FET and thermal shutdown. The ENABLE pin allows for system shutdown in a low-current (1 µA typical) mode. The controller supports pre-biased output, provides an open-drain PGOOD signal, and has closed-loop soft-start, output voltage tracking and adaptive dead-time control.

TPS40170 provides accurate output voltage regulation through 1% ensured accuracy. Additionally, the controller implements a novel scheme of bi-directional synchronization with one controller acting as the primary and other downstream controllers acting as secondaries synchronized to the primary in-phase or 180° out-of-phase. Secondary controllers can be synchronized to an external clock within ±30% of the free-running switching frequency.

New products (LM5145 and LM5146) offer reduced BOM cost, higher efficiency, and reduced design size among many other features.

TPS40170 is a full-featured, synchronous PWM buck controller that operates at an input voltage between 4.5 V and 60  V and is optimized for high-power density, high-reliability DC-DC converter applications. The controller implements voltage-mode control with input voltage feed-forward compensation that enables instant response to input voltage change. The switching frequency is programmable from 100 kHz to 600 kHz.

The TPS40170 has a complete set of system protection and monitoring features such as programmable undervoltage lockout (UVLO), programmable overcurrent protection (OCP) by sensing the low-side FET, selectable short-circuit protection (SCP) by sensing the high-side FET and thermal shutdown. The ENABLE pin allows for system shutdown in a low-current (1 µA typical) mode. The controller supports pre-biased output, provides an open-drain PGOOD signal, and has closed-loop soft-start, output voltage tracking and adaptive dead-time control.

TPS40170 provides accurate output voltage regulation through 1% ensured accuracy. Additionally, the controller implements a novel scheme of bi-directional synchronization with one controller acting as the primary and other downstream controllers acting as secondaries synchronized to the primary in-phase or 180° out-of-phase. Secondary controllers can be synchronized to an external clock within ±30% of the free-running switching frequency.

New products (LM5145 and LM5146) offer reduced BOM cost, higher efficiency, and reduced design size among many other features.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet TPS40170 4.5-V to 60-V, Wide-Input Synchronous PWM Buck Controller datasheet (Rev. C) PDF | HTML 03 nov 2023
Analog Design Journal Control-Mode Quick Reference Guide (Rev. B) PDF | HTML 29 ago 2023
Analog Design Journal Implementation of micro-processor controlled wide-input-voltage, smart battery 01 sep 2019
Application note Wide-Vin Battery-Charger Using SMBus MSP430 MCUs and bq Fuel Gauges (Rev. B) PDF | HTML 12 jul 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018
White paper An overview of radiated EMI specifications for power supplies 05 jun 2018
White paper An overview of conducted EMI specifications for power supplies 01 feb 2018
Application brief Improve DC/DC Regulator EMI for Free with Optimized Power Stage Layout 13 nov 2017
Technical article Optimizing layout for synchronous buck converters PDF | HTML 25 nov 2016
Analog Design Journal Reduce buck-converter EMI and voltage stress by minimizing inductive parasitics 21 jul 2016
Technical article Power Tips: Simple PSRR measurement with a frequency analyzer PDF | HTML 25 may 2016
Technical article GaN to the rescue! Part 2: Measurements PDF | HTML 07 ene 2016
Technical article GaN to the rescue! Part 1: Body-diode reverse recovery PDF | HTML 28 oct 2015
White paper Choosing the Right Fixed Frequency Buck Regulator Control Strategy 02 oct 2015
White paper Choosing the Right Fixed Frequency Buck Regulator Control Strategy (PPT) 02 oct 2015
Application note Creating a Dual USB Universal Car Charger From the TPS40170 and Two TPS2511 22 may 2012

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.

Placa de evaluación

TPS40170EVM-578 — Módulo de evaluación para controlador reductor PWM síncrono TPS40170

The TPS40170EVM-578 evaluation module is a fully assembled and tested circuit for evaluating the TPS40170 Wide Input Synchronous PWM Buck Controller. The TPS40170EVM-578 converts a 10V to 60V input to a 5V output at 6A. The minimum input voltage can be lowered to 6V with a simple UVLO resistor (...)
Guía del usuario: PDF
Placa de evaluación

TPS40170EVM-597 — Módulo de evaluación TPS40170 de controlador reductor PWM síncrono con NexFET™

The TPS40170EVM-597 is a fully assembled and tested circuit for evaluating the TPS40170 synchronous step-down controller with two NexFET devices CSD18537NQ5A and CSD18563Q5A. The TPS40170EVM-597 operates from a 10V to 36V input (24V nominal) and provides a 5V output up to 10A.

Guía del usuario: PDF
Modelo de simulación

TPS40170 IBIS Model

SLPM333.ZIP (37 KB) - IBIS Model
Modelo de simulación

TPS40170 PSpice Average Model (Rev. A)

SLUM208A.ZIP (152 KB) - PSpice Model
Modelo de simulación

TPS40170 PSpice Unencrypted Transient Model (Rev. C)

SLUM141C.ZIP (90 KB) - PSpice Model
Modelo de simulación

TPS40170 TINA-TI Average Reference Design

SLUM236.TSC (80 KB) - TINA-TI Reference Design
Modelo de simulación

TPS40170 TINA-TI Average Spice Model

SLUM237.ZIP (6 KB) - TINA-TI Spice Model
Modelo de simulación

TPS40170 TINA-TI Transient Reference Design

SLUM184.TSC (883 KB) - TINA-TI Reference Design
Modelo de simulación

TPS40170 TINA-TI Transient Spice Model

SLUM185.ZIP (76 KB) - TINA-TI Spice Model
Herramienta de cálculo

SLUC263 Type III Compensation Calculation Tool

Productos y hardware compatibles

Productos y hardware compatibles

Diseños de referencia

PMP15025 — Diseño de referencia de 24 V a 5 V A 4 A para robots industriales y accionamientos de motores

El PMP15025 consta de un convertidor buck sincrónico monofásico que suministra una solución estable de 5 V a 4 A a partir de una entrada de 24 V. El diseño presenta una alta eficiencia y densidad de potencia, que son adecuadas para aplicaciones de automatización industrial, como la robótica y los (...)
Test report: PDF
Esquema: PDF
Diseños de referencia

PMP10799 — Diseño de referencia de convertidor buck sincrónico de 24 V de entrada a 12 V a 8 A

Este convertidor buck sincrónico funciona en un rango de entrada de 19 V a 32 V y suministra 12 V a 8 A continuos. Alcanza una eficiencia superior al 97 % entre 4.5 A y 8 A a 24 Vin. Otras características son su baja tensión de ondulación de salida, su excelente respuesta transitoria y su tamaño (...)
Test report: PDF
Esquema: PDF
Diseños de referencia

PMP9668 — Diseño de referencia de cargador de batería con control uP universal con entrada de 24 V, salida de

BQ24745 is a host controlled synchronous buck battery charger capable of charging batteries at up to 19.2V and up to 8 A normally, extended to 10 A with use of 8 mOhm battery sense resistor. The power train is capable of 8 A with convection only cooling and 10 A with moderate fan cooling (~200 (...)
Test report: PDF
Esquema: PDF
Diseños de referencia

PMP11494 — Diseño de referencia de convertidor buck sincrónico de entrada de 48 V, 24 V a 12 A (15 A pk)

Este convertidor buck sincrónico funciona en un rango de entrada de 45 V a 51 V y suministra 24 V a 12 A continuos (15 A pico, 1 segundo). Este convertidor es muy eficiente; logrando más que 98 % entre 5.5 A y 15 A. La alta eficiencia ayuda a reducir el aumento de temperatura de los componentes, (...)
Test report: PDF
Esquema: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN (RGY) 20 Ultra Librarian

Pedidos y calidad

Información incluida:
  • 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
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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