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reference designTPS92001

Texas Instruments TPS92001

GENERAL PURPOSE LED LIGHTING PWM CONTROLLER

Overview

TopologyFlyback Converter
Input voltage240 V
Switching frequency30-800 kHz
Output 10.37 A
Output 23.8 V / 0.04 A
IC revisionA

Description

The TPS92001/2 family of general LED lighting PWM controllers contains control and drive circuitry required for off-line isolated or non-isolated LEDlighting 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 minimalexternal 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 dutycycle 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 space and height are at a premium.

Features

  • 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

Remarks:

Typical applications

  • Display Lighting
  • Drivers for Wall Sconces
  • Architectural Lighting
  • Residential LED Lighting Drivers for A19 E12/E26/27, GU10, MR16, PAR30/38 Integral Lamps
  • Pathway Lighting
  • Overhead Lighting
  • Drivers for Wall Washing

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IR(A)
ISAT,10%(A)
RDC max.(mΩ)
fres(MHz)
Version
ISAT,30%(A)
IR,40K(A)
IRP,40K(A)
Size
SamplesAvailability & Sample
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7447709471
SPECWE-PD SMT Power Inductor, 470 µH, 1.4 A

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-PD SMT Power Inductor
Inductance470 µH
Rated Current1.4 A
Saturation Current @ 10%1.5 A
DC Resistance560 mΩ
Self Resonant Frequency1.8 MHz
VersionStandard 
Saturation Current @ 30%1.85 A
Rated Current1.4 A
Performance Rated Current1.45 A
Size1210 
–Check availability
7447462102
SPECWE-TI Radial Leaded Wire Wound Inductor, 1000 µH, 0.25 A
Simu­lation
Availability
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TI Radial Leaded Wire Wound Inductor
Inductance1000 µH
Rated Current0.25 A
Saturation Current @ 10%0.27 A
DC Resistance6000 mΩ
Self Resonant Frequency2.3 MHz
VersionHeat Shrinking Tube 
Saturation Current @ 30%0.35 A
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Size5075 
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750312145
SPECFlyback Transformer, –, –
Simu­lation–
Availability
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Downloads–
Status Activei| Production is active. Expected lifetime: >10 years.
Product series Flyback Transformer
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