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Product details

Parameters

Topology Buck, Flyback Vin (Min) (V) 13 Vin (Max) (V) 35 Iout (Max) (A) 2 Iq (Typ) (mA) 1.2 Operating temperature range (C) -40 to 125 Dimming method Analog open-in-new Find other Illumination LED drivers

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 open-in-new Find other Illumination LED drivers

Features

  • Regulates LED Current Without Secondary Side Sensing
  • Adaptive ON-time Control with Inherent PFC
  • Critical-Conduction-Mode (CRM) with Zero-Current Detection (ZCD) for Valley Switching
  • Programmable Switch Turn ON Delay
  • Programmable Constant ON-Time (COT)
  • Over Current Limit Options:
    • TPS92314: 1.15V
    • TPS92314A: 2.0V
  • Advanced Over Current and Over Voltage Protection
  • Internal Over-temperature Protection
  • 8-Pin SOIC Package

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Description

The TPS92314/14A is an off-line controller specifically designed to drive high power LEDs for lighting applications. Features include adaptive constant on-time control and quasi-resonant switching. Resonant switching allows for a reduced EMI signature and increased system efficiency. Thus, the device introduces a low external parts count and high level of integration. The control algorithm of TPS92314/14A adjusts the on time with reference to the primary side inductor peak current and secondary side inductor discharge time dynamically, the response time of which is set by an external capacitor.

The over current protection is implemented by a cycle by cycle current limit of the primary inductor current. TPS92314A has a higher OCP threshold which is more suitable for universal line application and TPS92314 can optimize the system cost. Other supervisory features of the TPS92314/14A include VCC over voltage protection and under-voltage lockout, output LEDs over-voltage protection and controller thermal shutdown. The TPS92314/14A is available in 8-pin SOIC package.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 12
Type Title Date
* Datasheet TPS92314 Off-Line Primary Side Sensing Controller with PFC datasheet (Rev. B) May 01, 2013
White paper Common LED Functions and LED Driver Design Considerations Sep. 21, 2020
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Technical articles Here's how body electronics and lighting technology are changing the driving experience Sep. 26, 2016
Technical articles LED brightness adjustment: high-frequency PWM dimming Aug. 26, 2016
Application note Tricolor control of TPS92314 based LED driver with toggling of main light switch Dec. 11, 2015
Technical articles Take better selfies with innovative LED flashes Nov. 18, 2014
Technical articles Solving the automotive EMI issues in new cars with all the screens Sep. 10, 2014
Application note Low Cost, Single Inductor Non-Isolated AC/DC LED Driver Design using TPS92314 Jun. 05, 2014
User guide Using the TPS92314A19120VEVM (Rev. A) Feb. 07, 2013
User guide Using the TPS92314A19230VEVM (Rev. A) Feb. 07, 2013
Application note TPS92314 THD design consideration Jan. 16, 2013

Design & development

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

Hardware development

EVALUATION BOARD Download
49
Description

Off-Line Primary Side Sensing Controller with PFC Evaluation Module Board LED Lighting Application

The TPS92314A19120VEVM evaluation module uses the TPS92314 as an isolated PFC flyback controller; more specifically it is an isolated primary-side controlled critical conduction mode PFC flyback. The (...)
Features

Regulates LED Current without Secondary Side Sensing

  • Critical Conduction Mode (CCM) (with Zero current detection for valley switching)
  • Adaptive ON-Time Control with Inherent PFC
  • Programmable Switch Turn-On Delay
  • Over Temperature Protection
  • 120V applications
EVALUATION BOARD Download
49
Description

Off-Line Primary Side Sensing Controller with PFC Evaluation Module Board LED Lighting Application

The TPS92314 family of general LED lighting PWM controllers contain control and drive circuitry required for off-line isolated or non-isolated LED lighting applications. The TPS92314A19230VEVM (...)
Features

Regulates LED Current without Secondary Side Sensing

  • Critical Conduction Mode (CCM) (with Zero current detection for valley switching
  • Adaptive ON-Time Control with Inherent PFC
  • Programmable Switch Turn-On Delay
  • Over Temperature Protection
  • 230V applications

Design tools & simulation

SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
CALCULATION TOOL Download
SLUC446.ZIP (407 KB)

Reference designs

REFERENCE DESIGNS Download
18W Primary Side Regulated Flyback LED Driver for T8 Fixtures Reference Design
PMP7672 This reference design describes an 18W power supply for driving a string of 13 LEDs (3.3V) at 420mA. The targeted application for this design is T8 fixtures transitioning from standard fluorescent tubes to more efficient LEDs. With an operating efficiency of over 87%, an input voltage range of 90 (...)
document-generic Schematic
REFERENCE DESIGNS Download
220 VAC in 28-W non-isolated T8 tube LED driver reference design
PMP4362 — The reference design presents non-isolated LED driver solution for 28W T8 tube application. The valley switching mode controller TPS92314 is used to achieve high effiency (>93%) over input range. Inherent PFC achieves high PF>0.92. The design includes EMI driver board and LED driver board. The (...)
document-generic Schematic
REFERENCE DESIGNS Download
8-W isolated flyback LED driver with PFC for A19 reference design
PMP8010 — The main purpose of this reference design is to demonstrate a high performance and compact size offline flyback LED driver with PFC based on TPS92314. This LED driver is designed for converting an AC input to a regulated LED current. The operating conditions and performance of the reference design (...)
document-generic Schematic
REFERENCE DESIGNS Download
Triac dimmable flyback LED driver with PFC for A19 reference design
PMP8014 — The main purpose of this reference design is to demonstrate a high performance, compact size and triac Dimmable offline flyback LED driver with PFC based on TPS92314. This LED driver is designed for converting an AC input to a regulated LED current. The operating conditions and performance of the (...)
document-generic Schematic
REFERENCE DESIGNS Download
Universal AC input high efficiency 42-V, 42-A, 18-W isolated LED driver for T8 tube reference design
PMP4347 — This reference design demonstrates low cost, high PF LED Driver solution for T8 tube application, which includes single stage Flyback with Primary Side Regulation topology using TPS92314(SOIC-8). The input range is 85~265Vac and output is 38~42V 420mA. Typical 90% efficiency and PF>0.9.
document-generic Schematic
REFERENCE DESIGNS Download
220-VAC 120-VLED 21-W non-isolated LED driver with PFC for T8 tube application reference design
PMP8007 — The main purpose of this reference design is to demonstrate a very high performance offline LED driver with PFC based on TPS92314. This LED driver is designed for converting an AC input to a regulated LED current. The operating conditions and performance of the reference design are as follows (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options

Ordering & quality

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  • Qualification summary
  • Ongoing reliability monitoring

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