Inicio Gestión de la energía Controladores y alimentación para pantallas LCD y OLED

TPS65161B

ACTIVO

Polarización LCD de 4 canales (Ilim mínimo elevador de 3.7 A hasta 19 V, Ilim mínimo elevador de 2.5

Detalles del producto

Display type LCD unipolar IC integration LCD bias Vin (min) (V) 8 Vin (max) (V) 14.7 Applications 13 to 21 inches, 21 inches and above Source driver voltage (max) (V) 19 Level shifter/scan driver (Ch) 0 V_NEG (max) (V) -2 Features Adjustable sequencing Topology Boost, Buck Rating Catalog Operating temperature range (°C) -40 to 85
Display type LCD unipolar IC integration LCD bias Vin (min) (V) 8 Vin (max) (V) 14.7 Applications 13 to 21 inches, 21 inches and above Source driver voltage (max) (V) 19 Level shifter/scan driver (Ch) 0 V_NEG (max) (V) -2 Features Adjustable sequencing Topology Boost, Buck Rating Catalog Operating temperature range (°C) -40 to 85
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4
  • 8-V to 14.7-V Input Voltage Range
  • VS Output Voltage Range up to 19 V
  • TPS65161 has a 2.8-A Switch Current Limit
  • TPS65161A has a 3.7-A Switch Current Limit
  • TPS65161B has a 3.7-A Switch Current Limit and 100-mA
    Charge Pump Output Current
  • 1.5% Accurate 2.3-A Step-Down Converter
  • 500-kHz/750-kHz Fixed Switching Frequency
  • Negative Charge Pump Driver for VGL
  • Positive Charge Pump Driver for VGH
  • Adjustable Sequencing for VGL, VGH
  • Gate Drive Signal to Drive External MOSFET
  • Internal and Adjustable Soft Start
  • Short-Circuit Protection
  • Overvoltage Protection
  • Thermal Shutdown
  • Available in HTSSOP-28 Package
  • 8-V to 14.7-V Input Voltage Range
  • VS Output Voltage Range up to 19 V
  • TPS65161 has a 2.8-A Switch Current Limit
  • TPS65161A has a 3.7-A Switch Current Limit
  • TPS65161B has a 3.7-A Switch Current Limit and 100-mA
    Charge Pump Output Current
  • 1.5% Accurate 2.3-A Step-Down Converter
  • 500-kHz/750-kHz Fixed Switching Frequency
  • Negative Charge Pump Driver for VGL
  • Positive Charge Pump Driver for VGH
  • Adjustable Sequencing for VGL, VGH
  • Gate Drive Signal to Drive External MOSFET
  • Internal and Adjustable Soft Start
  • Short-Circuit Protection
  • Overvoltage Protection
  • Thermal Shutdown
  • Available in HTSSOP-28 Package

The TPS65161 family offers a compact power supply solution to provide all four voltages required by thin-film transistor (TFT) LCD panels. With their high current capabilities, the devices are ideal for large screen monitor panels and LCD TV applications.

Compared to the TPS65160 and TPS65160A the TPS65161/A/B family of devices offer increased step-down converter output current. The TPS65161B also offers increased charge pump output current, and a higher undervoltage lockout threshold. The devices can be powered from a 12-V input supply and generate the four main supply voltages required by TFT LCD display panels.

Each device comprises a boost converter to generate the source voltage VS, a step-down converter to generate the logic supply V(LOGIC), and regulated positive and negative charge pumps to generate the TFT bias voltages VGH and VGL. Both switching converters and both charge pumps operate from a central clock that can be set to either 750-kHz or 500-kHz by tying the FREQ pin high or low.

The TPS65161/A/B devices feature adjustable power supply sequencing, plus a number of safety features such as boost converter overvoltage protection, buck converter short-circuit protection, and thermal shutdown. The devices also incorporate a gate drive signal to control an external MOSFET isolation switch connected in series with VS or VGH (see the application section at the end of this data sheet for more information).

The TPS65161 family offers a compact power supply solution to provide all four voltages required by thin-film transistor (TFT) LCD panels. With their high current capabilities, the devices are ideal for large screen monitor panels and LCD TV applications.

Compared to the TPS65160 and TPS65160A the TPS65161/A/B family of devices offer increased step-down converter output current. The TPS65161B also offers increased charge pump output current, and a higher undervoltage lockout threshold. The devices can be powered from a 12-V input supply and generate the four main supply voltages required by TFT LCD display panels.

Each device comprises a boost converter to generate the source voltage VS, a step-down converter to generate the logic supply V(LOGIC), and regulated positive and negative charge pumps to generate the TFT bias voltages VGH and VGL. Both switching converters and both charge pumps operate from a central clock that can be set to either 750-kHz or 500-kHz by tying the FREQ pin high or low.

The TPS65161/A/B devices feature adjustable power supply sequencing, plus a number of safety features such as boost converter overvoltage protection, buck converter short-circuit protection, and thermal shutdown. The devices also incorporate a gate drive signal to control an external MOSFET isolation switch connected in series with VS or VGH (see the application section at the end of this data sheet for more information).

Descargar Ver vídeo con transcripción Video

Productos similares que pueden interesarle

open-in-new Comparar alternativas
Funcionalidad similar a la del dispositivo comparado
TPS65176 ACTIVO IC de polarización LCD para televisores This product uses controllers for VGH & VGL, with adjustable power on sequence.

Documentación técnica

star =Principal documentación para este producto seleccionada por TI
No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 7
Tipo Título Fecha
* Data sheet Bias Power Supply for TV and Monitor TFT LCD Panels. datasheet (Rev. E) 05 mar 2013
Application note Basic Calculation of a Boost Converter's Power Stage (Rev. D) PDF | HTML 28 oct 2022
Application note Understanding Undervoltage Lockout in Power Devices (Rev. A) 19 sep 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018
Application note Generation of a VCOM buffer input using PWM signal 21 dic 2015
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) 17 ago 2015
Application note Minimizing Ringing at the Switch Node of a Boost Converter 15 sep 2006

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.

Herramienta de simulación

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
HTSSOP (PWP) 28 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

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

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.

Si tiene preguntas sobre la calidad, el paquete o el pedido de productos de TI, consulte el soporte de TI. ​​​​​​​​​​​​​​

Videos