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TPS92075

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Non-isolated, phase dimmable, buck PFC LED driver with digital reference control

Product details

Input voltage type AC/DC Topology Buck, Buck-Boost Vin (min) (V) 11 Vin (max) (V) 18 Vout (max) (V) 120 Vout (min) (V) 9 Iout (max) (A) 2 Iq (typ) (mA) 1.3 Features Adjustable Switch Frequency, Soft Start, Thermal shutdown Operating temperature range (°C) -40 to 125 Dimming method Analog, Forward Phase (Triac), PWM, Reverse Phase Number of channels 1 Rating Catalog
Input voltage type AC/DC Topology Buck, Buck-Boost Vin (min) (V) 11 Vin (max) (V) 18 Vout (max) (V) 120 Vout (min) (V) 9 Iout (max) (A) 2 Iq (typ) (mA) 1.3 Features Adjustable Switch Frequency, Soft Start, Thermal shutdown Operating temperature range (°C) -40 to 125 Dimming method Analog, Forward Phase (Triac), PWM, Reverse Phase Number of channels 1 Rating Catalog
SOIC (D) 8 29.4 mm² 4.9 x 6 SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8
  • Controlled Reference Derived PFC
  • Integrated Digital Phase-Angle Decoder
  • Digital 50/60 Hz Synchronization
  • Phase-Symmetry Balancing
  • Constant LED current operation
  • Fast Start-up
  • Dimming Implemented Via Analog Reference Control
  • Smooth Dimming Transitions
  • Overvoltage Protection
  • Feedback Short-Circuit Protection
  • Leading and Trailing Edge Dimmer Compatibility
  • Low BOM Cost and Small PCB Footprint
  • Patent Pending Digital Architecture
  • Available in 8-Pin SOIC and 6-Pin TSOT
  • Controlled Reference Derived PFC
  • Integrated Digital Phase-Angle Decoder
  • Digital 50/60 Hz Synchronization
  • Phase-Symmetry Balancing
  • Constant LED current operation
  • Fast Start-up
  • Dimming Implemented Via Analog Reference Control
  • Smooth Dimming Transitions
  • Overvoltage Protection
  • Feedback Short-Circuit Protection
  • Leading and Trailing Edge Dimmer Compatibility
  • Low BOM Cost and Small PCB Footprint
  • Patent Pending Digital Architecture
  • Available in 8-Pin SOIC and 6-Pin TSOT

The TPS92075 is a hybrid power factor controller (PFC) with a built-in phase dimming decoder. The device analyzes line cycles continuously using an internal, low-power, digital controller for shape and symmetry. The power converter stage generates an analog current reference and uses it to regulate the output current. The device uses control algorithms to manipulate the analog reference. These algorithms optimize dimmer compatibility, power factor and total harmonic distortion (THD).

Using a constant off-time control, the solution achieves low component count, high efficiency and inherently provides variation in the switching frequency. This variation creates an emulated spread spectrum effect easing the converters EMI signature and allowing a smaller input filter.

The TPS92075 also includes standard features: current limit, overvoltage protection, thermal shut-down, and VCC undervoltage lockout, all in packages

The TPS92075 is a hybrid power factor controller (PFC) with a built-in phase dimming decoder. The device analyzes line cycles continuously using an internal, low-power, digital controller for shape and symmetry. The power converter stage generates an analog current reference and uses it to regulate the output current. The device uses control algorithms to manipulate the analog reference. These algorithms optimize dimmer compatibility, power factor and total harmonic distortion (THD).

Using a constant off-time control, the solution achieves low component count, high efficiency and inherently provides variation in the switching frequency. This variation creates an emulated spread spectrum effect easing the converters EMI signature and allowing a smaller input filter.

The TPS92075 also includes standard features: current limit, overvoltage protection, thermal shut-down, and VCC undervoltage lockout, all in packages

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Technical documentation

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Type Title Date
* Data sheet Non-isolated, Phase Dimmable, Buck PFC LED Driver with Digital Ref Control datasheet (Rev. B) 20 Sep 2013
White paper Common LED Functions and LED Driver Design Considerations 21 Sep 2020
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
User guide Using the TPS92075 Buck Converter 14 Jun 2013
User guide Using the TPS92075 Buck-Boost EVM (Rev. A) 16 Apr 2013

Design & development

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

Evaluation board

TPS92075EVM2 — Non-Isolated, Phase Dimmable, Buck PFC LED Driver Evaluation Module

The TPS92075EVM2 implements a 120V buck dimming solution using the TPS92075 integrated circuit from Texas Instruments. The TPS92075 is a hybrid power factor controller with a built-in phase dimming decoder. The EVM can support applications up to ~13W and includes output at LED voltage up to 35V.

User guide: PDF
Not available on TI.com
Calculation tool

TPS92075DESIGN-CALC — TPS92075 Design Calculator

The TPS92075 Design Calculator is an Excel based design tool to aid in determining external component values for the TPS92075 Non-isolated, Phase Dimmable, Buck PFC LED Driver with Digital Reference Control. The TPS92075 AC/DC LED driver is intended for use in phase dimmable (TRIAC and (...)
Schematic

TPS92075 Design Tool (Rev. F)

SLVC463F.ZIP (372 KB)
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 Download
SOIC (D) 8 View options
SOT-23-THN (DDC) 6 View options

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