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TPS54200

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4.5V to 28V input voltage, synchronous buck LED driver

Product details

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 85 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 85 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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Technical documentation

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Type Title Date
* 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 A simple and efficient LED driver for video surveillance cameras PDF | HTML 05 Jun 2017
Application note Power and Dimming LED with TPS54200 and TPS54201 25 Apr 2017
EVM User's guide TPS54200EVM-818 Buck LED Driver Evaluation Module 17 Oct 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS54200EVM-818 — TPS54200 Synchronous Buck WLED Driver Evaluation Module

The TPS54200 is a 28-V, 1.5-A, synchronous monolithic buck LED driver with integrated MOSFETs. The TPS54200 enables small designs by integrating the MOSFETs, internal compensation in SOT23-6 package and implementing current mode control to reduce external component count. Using the PWM pin, analog (...)
User guide: PDF
Not available on TI.com
Simulation model

TPS54200 PSpice Transient Model

SLUM569.ZIP (100 KB) - PSpice Model
Simulation model

TPS54200 TINA-TI Analog Dimming Transient Reference Design

SLUM571.TSC (820 KB) - TINA-TI Reference Design
Simulation model

TPS54200 TINA-TI PWM Dimming Transient Reference Design

SLUM572.TSC (819 KB) - TINA-TI Reference Design
Simulation model

TPS54200 TINA-TI Transient Spice Model

SLUM570.ZIP (45 KB) - TINA-TI Spice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Package Pins CAD symbols, footprints & 3D models
SOT-23-THN (DDC) 6 Ultra Librarian

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