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TPS92001 - 产品图解:
TPS92001-用于 LED 照明、具有 10V 启动阈值的通用 PWM 控制器
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TI产品 - TPS92001介绍
TPS92001 - 用于 LED 照明、具有 10V 启动阈值的通用 PWM 控制器

TPS92001是TI公司的一款LED照明-照明产品,TPS92001是用于 LED 照明、具有 10V 启动阈值的通用 PWM 控制器,本页介绍了TPS92001的产品说明、应用、特性等,并给出了与TPS92001相关的TI元器件型号供参考。

TPS92001 - 用于 LED 照明、具有 10V 启动阈值的通用 PWM 控制器 - LED照明-照明 - LED驱动器 - TI公司(Texas Instruments,德州仪器)

产品描述

The TPS92001/2 family of general LED lighting PWM controllers contains control and drive circuitry required for off-line isolated or non-isolated LED lighting applications.

The controllers can support Phase Cut TRIAC dimming with minimal external components. The controllers can also be implemented for stage conversion where the power factor (PF) exceeds regulatory requirements for lighting. These controllers also have an accessible 5-V reference that could be used to power a microcontroller or other low power peripheral components. The controllers operate in fixed frequency current mode switching with minimal external parts count. Internally implemented circuits include undervoltage lockout featuring startup current less than 100 μA, logic to ensure latched operation, a PWM comparator, and a totem pole output stage to sink or source peak current. The output stage, suitable for driving N-Channel MOSFETs, is low in the off state. Oscillator frequency and maximum duty cycle are programmed with two resistors and a capacitor.

The TPS92001/2 family also features full cycle soft start. The family offers UVLO thresholds and hysteresis levels for off-line and DC-to-DC systems. The TPS92001/2 is offered in the 8-pin MSOP (DGK) and 8-pin SOIC (D) packages. The small MSOP package makes the device ideally suited for applications where board

产品特性

  • Ideal for Single Stage Designs
  • Supports Isolated and Non-Isolated Topologies
  • Phase-Cut TRIAC Dimmable
  • Few External Components Mode Operation
  • Wide Duty Cycle Range for Wide-Input Voltage or Dimming Range
  • Convenient 5-V Reference Output
  • Undervoltage Lockout for Safe Operation
  • Operation to 1-MHz
  • 0.4-A Source/0.8-A Sink FET Driver
  • Low 100-μA Startup Current
  • APPLICATIONS
    • Residential LED Lighting Drivers for A19 E12/E26/27, GU10, MR16, PAR30/38 Integral Lamps
    • Drivers for Wall Sconces, Pathway Lighting and Overhead Lighting
    • Drivers for Wall Washing, Architectural and Display Lighting

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