Inicio Gestión de la energía Convertidores de CA/CC y CC/CC (FET integrado)

TPS61045

ACTIVO

Convertidor elevador ajustable digitalmente de 28 V y eficiencia del 85 % en QFN-8

Detalles del producto

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost Type Converter Vin (min) (V) 1.8 Vin (max) (V) 6 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 1000 Features Enable, Load Disconnect, Nonsynchronous Vout (min) (V) 1.8 Vout (max) (V) 28 Iq (typ) (µA) 40 Duty cycle (max) (%) 88 Switch current limit (typ) (A) 0.3
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost Type Converter Vin (min) (V) 1.8 Vin (max) (V) 6 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 1000 Features Enable, Load Disconnect, Nonsynchronous Vout (min) (V) 1.8 Vout (max) (V) 28 Iq (typ) (µA) 40 Duty cycle (max) (%) 88 Switch current limit (typ) (A) 0.3
VSON (DRB) 8 9 mm² 3 x 3
  • Input Voltage Range from 1.8 to 6 V
  • Output Voltage of up to 28 V Possible
  • Up to 85% Efficiency
  • Digitally Adjustable Output Voltage Control
  • Disconnects Output From Input During Shutdown
  • Switching Frequency up to 1 MHz
  • No Load Quiescent Current 40 µA Typical
  • Thermal Shutdown Mode
  • Shutdown Current 0.1 µA Typical
  • Available in Small 3-mm × 3-mm VSON Package
  • Input Voltage Range from 1.8 to 6 V
  • Output Voltage of up to 28 V Possible
  • Up to 85% Efficiency
  • Digitally Adjustable Output Voltage Control
  • Disconnects Output From Input During Shutdown
  • Switching Frequency up to 1 MHz
  • No Load Quiescent Current 40 µA Typical
  • Thermal Shutdown Mode
  • Shutdown Current 0.1 µA Typical
  • Available in Small 3-mm × 3-mm VSON Package

The TPS61045 device is a high-frequency boost converter with digitally-programmable output voltage and true shutdown. During shutdown, the output is disconnected from the input by opening the internal input switch. This allows a controlled power-up and power-down sequencing of the display. The output voltage can be increased or decreased in digital steps by applying a logic signal to the CTRL pin. The output voltage range, as well as the output voltage step size, can be programmed with the feedback divider network. With a high switching frequency of up to 1 MHz, the TPS61045 device allows the use of small external components, and together, with the small 8-pin VSON package, a minimum system solution size is achieved.

The TPS61045 device is a high-frequency boost converter with digitally-programmable output voltage and true shutdown. During shutdown, the output is disconnected from the input by opening the internal input switch. This allows a controlled power-up and power-down sequencing of the display. The output voltage can be increased or decreased in digital steps by applying a logic signal to the CTRL pin. The output voltage range, as well as the output voltage step size, can be programmed with the feedback divider network. With a high switching frequency of up to 1 MHz, the TPS61045 device allows the use of small external components, and together, with the small 8-pin VSON package, a minimum system solution size is achieved.

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Documentación técnica

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Tipo Título Fecha
* Data sheet TPS61045 Digitally Adjustable Boost Converter datasheet (Rev. C) PDF | HTML 05 dic 2014
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 06 dic 2023
Application note Using External Bias to Broaden Input Voltage Range of Boost Converters PDF | HTML 08 nov 2021
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 dic 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018
Application note Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) 29 nov 2017
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 15 jun 2017
Application note Feedforward Capacitor Makes Boost Converter Fast and Stable 02 nov 2016
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 26 abr 2012
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 17 jun 2011
Application note Minimizing Ringing at the Switch Node of a Boost Converter 15 sep 2006
EVM User's guide TPS61045EVM-231: Adjustable LCD Boost Converter EVM 22 ene 2003
Application note High Voltage Power Supply Using the TPS61040 09 jul 2002

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

TPS61045EVM-231 — Módulo de evaluación TPS61045

The TPS61045EVM-231 is an evaluation tool for the TPS61045 inductive boost converter in 3x3mm2 QFN that can supply voltages up to 28V from input voltages in the range of 1.8V to 6V. The EVM is configured to supply a highly efficient, digitally adjustable, 18-V output for LCD bias supplies. This EVM (...)

Guía del usuario: PDF
Modelo de simulación

TPS61045 Macromodels Transient

SLVMD16.ZIP (92 KB) - SIMPLIS Model
Modelo de simulación

TPS61045 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM359A.ZIP (41 KB) - PSpice Model
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VSON (DRB) 8 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

Soporte y capacitación

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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.

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