SLUSBQ6B October   2013  – July 2014 TPS92411

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 Handling Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Overvoltage Protection (OVP)
      2. 7.3.2 Input Undervoltage Lockout (UVLO)
      3. 7.3.3 LED Capacitor
      4. 7.3.4 Blocking Diode
    4. 7.4 Device Functional Modes
      1. 7.4.1 Input UVLO
      2. 7.4.2 Operating with Internal Switch ON
      3. 7.4.3 Operating with Internal Switch OFF
      4. 7.4.4 Overvoltage Operation (TPS92411P)
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 120-VAC, Phase Dimmable 11.5-W Input with Discrete Linear Regulator
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Setting the Switching Thresholds (RSNS, RSET)
        3. 8.2.1.3 Application Curve
      2. 8.2.2 230-VAC, Phase Dimmable 16-W Input with Discrete Linear Regulator
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Related Links
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • High-Performance Solution for Driving LEDs from AC Mains
  • Simplifies Design of Phase Dimmable LED Driver with High Power Factor, Low Total Harmonic Distortion, and Low Current Ripple
  • Suitable for LED Luminaires up to 70+ W
  • Input Voltage Range: 7.5 V to 100 V
  • Stackable 100 V, 2-Ω MOSFET Building Block
  • Controlled Switch Open and Close Transitions Minimize EMI
  • Designed for use with the TPS92410 or with a Discrete Linear Regulator
  • Input Undervoltage Protection
  • Output Overvoltage Protection (TPS92411P)
  • Low IQ: 200 µA (typ)

2 Applications

  • LED Lamps and Light Bulbs
  • LED Luminaires
  • Downlights

3 Description

The TPS92411 is a 100-V floating MOSFET switch for use in offline LED lighting applications. The device is used in conjunction with a current regulator that can achieve a power factor greater than 0.9 to create a LED drive solution with low-ripple current. When properly designed, solution performance is comparable to traditional flyback, buck or boost-based AC/DC LED drivers. The approach requires no inductive components, thus saving size and cost. Slew-controlled low-frequency operation of the TPS92411 switches creates very little EMI. Detailed operation is described in the Application Information section.

Package options include SOT23-5 and PSOP-8 allowing the user to optimize for small size or scale for high power. Using the PSOP-8 package, design of LED luminaires up to 70 W or more is possible. Other features include a UVLO circuit to monitor when the device has sufficient voltage to operate properly and over-voltage protection (TPS92411P).

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS92411, TPS92411P SOT-23 (5) 2.90 mm x 1.60 mm
SO PowerPAD (8) 4.89 mm x 3.90 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.
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