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TPS54201

ACTIVO

Controlador LED reductor síncrono con tensión de entrada de 4.5 V a 28 V

Detalles del producto

Input voltage type DC/DC Topology Buck, Inductive Vin (min) (V) 4.5 Vin (max) (V) 28 Iout (max) (A) 1.5 Iq (typ) (mA) 0.002 Features Enable, Input/Output Isolation, OVP, Over Current Protection, Synchronous Rectification, True Shutdown Operating temperature range (°C) -40 to 125 Dimming method Analog, PWM Number of channels 1 Rating Catalog
Input voltage type DC/DC Topology Buck, Inductive Vin (min) (V) 4.5 Vin (max) (V) 28 Iout (max) (A) 1.5 Iq (typ) (mA) 0.002 Features Enable, Input/Output Isolation, OVP, Over Current Protection, Synchronous Rectification, True Shutdown Operating temperature range (°C) -40 to 125 Dimming method Analog, PWM Number of channels 1 Rating Catalog
SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8
  • 4.5-V to 28-V Wide Input Range
  • Integrated 150-mΩ and 70-mΩ MOSFETs for 1.5‑A, Continuous Output Current
  • Low, 2-µA Shutdown Current
  • Fixed 600-kHz Frequency
  • Peak Current Mode With Internal Compensation
  • 200-mV and 100-mV Sense Voltage During Analog and PWM Dimming Modes
  • Precision Analog Dimming (ADIM) by PWM Input
  • LED-Open and -Short Protection
  • Sense-Resistor-Open and -Short Protection
  • Shutdown-and-Latch Mode Protection (TPS54200)
  • Auto-Retry Mode Protection (TPS54201)
  • Thermal Shutdown
  • 6-Pin SOT-23-THIN Package
  • 4.5-V to 28-V Wide Input Range
  • Integrated 150-mΩ and 70-mΩ MOSFETs for 1.5‑A, Continuous Output Current
  • Low, 2-µA Shutdown Current
  • Fixed 600-kHz Frequency
  • Peak Current Mode With Internal Compensation
  • 200-mV and 100-mV Sense Voltage During Analog and PWM Dimming Modes
  • Precision Analog Dimming (ADIM) by PWM Input
  • LED-Open and -Short Protection
  • Sense-Resistor-Open and -Short Protection
  • Shutdown-and-Latch Mode Protection (TPS54200)
  • Auto-Retry Mode Protection (TPS54201)
  • Thermal Shutdown
  • 6-Pin SOT-23-THIN Package

The TPS54200 and TPS54201 devices are 1.5-A synchronous buck mono-color or IR drivers with 28-V maximum input voltage. Current-mode operation provides fast transient response and eases loop stabilization.

The TPS54200 and TPS54201 can be used to drive single-string or multi-string mono-color or Infrared (IR) LED arrays as in the case of night vision cameras.

By integrating the MOSFETs and employing the SOT-23-THIN package, the TPS54200 and TPS54201 devices provide high power density and only require a small footprint on the PCB.

The TPS54200 and TPS54201 devices implement analog dimming by changing the internal reference voltage proportional to the duty cycle of the PWM signal input in analog dimming mode. This devices also support PWM dimming mode, in which the internal reference voltage is halved to 100 mV for higher efficiency.

Cycle-by-cycle current limit in the high-side MOSFET protects the converter in an overload condition and is enhanced by a low-side MOSFET freewheeling current limit which prevents current runaway. There is a low-side MOSFET sinking current limit to prevent excessive reverse current. For safety and protection, the TPS54200 and TPS54201 devices include LED-open and -short protection, sense-resistor-open and -short protection, and device thermal protection. The TPS54200 device implements shutdown-and-latch mode protection, whereas the TPS54201 device adopts auto-retry mode protection.

The TPS54200 and TPS54201 devices are 1.5-A synchronous buck mono-color or IR drivers with 28-V maximum input voltage. Current-mode operation provides fast transient response and eases loop stabilization.

The TPS54200 and TPS54201 can be used to drive single-string or multi-string mono-color or Infrared (IR) LED arrays as in the case of night vision cameras.

By integrating the MOSFETs and employing the SOT-23-THIN package, the TPS54200 and TPS54201 devices provide high power density and only require a small footprint on the PCB.

The TPS54200 and TPS54201 devices implement analog dimming by changing the internal reference voltage proportional to the duty cycle of the PWM signal input in analog dimming mode. This devices also support PWM dimming mode, in which the internal reference voltage is halved to 100 mV for higher efficiency.

Cycle-by-cycle current limit in the high-side MOSFET protects the converter in an overload condition and is enhanced by a low-side MOSFET freewheeling current limit which prevents current runaway. There is a low-side MOSFET sinking current limit to prevent excessive reverse current. For safety and protection, the TPS54200 and TPS54201 devices include LED-open and -short protection, sense-resistor-open and -short protection, and device thermal protection. The TPS54200 device implements shutdown-and-latch mode protection, whereas the TPS54201 device adopts auto-retry mode protection.

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Documentación técnica

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Tipo Título Fecha
* Data sheet TPS54200, TPS54201 4.5-V to 28-V Input Voltage, 1.5-A Output Current, Synchronous Buck Mono-Color or IR LED Driver datasheet (Rev. B) PDF | HTML 20 jun 2018
White paper Common LED Functions and LED Driver Design Considerations 21 sep 2020
Technical article Helping physicians achieve faster, more accurate patient diagnoses with molecular PDF | HTML 20 may 2020
Application note Driving a Peltier Element (TEC): Efficiency and Aging (Rev. A) 16 ene 2020
Application note Power and Dimming LED with TPS54200 and TPS54201 25 abr 2017
EVM User's guide TPS54201EVM-818 28-V 1.5-A Buck LED Driver Evaluation Module User's Guide 27 feb 2017

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

TPS54201EVM-818 — Módulo de evaluación de controlador LED reductor síncrono de tensión de entrada de 4.5 V a 28 V TPS5

The TPS54201EVM-818 evaluation module (EVM) helps designers evaluate the operation and performance of the TPS54201 synchronous buck switching regulator designed for high-current LED driver applications. The TPS54201 is a 1.5-A synchronous buck LED driver and features a wide input-voltage range (...)
Guía del usuario: PDF
Modelo de simulación

TPS54201 PSpice Transient Model

SLUM582.ZIP (112 KB) - PSpice Model
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 (...)
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Design guide: PDF
Esquema: PDF
Diseños de referencia

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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SOT-23-THN (DDC) 6 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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