Press Center
 
Home About us Products Support Quality & Certification Career Contact us
• Power Management
    Linear Regulators
    Low Dropout Linear Regulators
    DDR Termination Regulators
    Shunt Reference Regulators
    Step Down Switching Regulators
    Switching Regulator
    Step-Up DC-DC Converter
    PWM Controller
    White LED Driver
    Supervisory Circuit
    Voltage Detection and System R
    USB Power Switch
    Power Factor Control
    Li-Battery Protection or Charg
    FET Bias Controllers
    Combo IC
    Inverting DC-DC Converter
• Amplifier / Comparator
    Audio Amplifiers
    Operational Amplifier
    Voltage Comparator
• Analog Switches
    Video Signal Switch
    Analog Multiplexers, Demultipl
• Hall ICs
• Special Application ICs
    Motor Controller IC
    Interface and Driver Circuit
    Telecommunication Circuit
    Melody IC
    Alarm /Sound Generator IC
    Remote Controller IC
    Television Circuit
    Leakage Current Detector
    Automotive IC
    A-D or D-A Converters
    Miscellaneous
    Radio and Cassette Recorder Ci
    Timer
    Mouse&Keyboard Controller
    Transient Voltage Suppressors
    Sense Monitor
    Video Filter
    ZCB snubber
• Logic
• TRANSISTORs
• MOSFETs
    JFET
    Power Mosfet
• TRIACs
• SCRs
• DIODEs
 
Home > White LED Driver
UCL5108 Datasheet
  

LED DRIVER WITH AVERAGE-MODE CONSTANT CURRENT CONTROL

 

 

DESCRIPTION

 

The UCL5108 is an average current mode control LED driver IC
operating in a constant off-time mode. UCL5108 does not produce a
peak-to-average error, and therefore greatly improves accuracy,line and
load regulation of the LED current without any need for loop
compensation or high-side current sensing. The output LED current
accuracy is ±2%. The UCL5108 can be powered from an 8.0 - 100V
supply. PWM & Linear dimming input is provided that accepts an
external control TTL compatible signal. The output current can be
programmed by an internal 250mV reference.

FEATURES

* Fast Average Current Control
* Internal 8 to 100V Linear Regulator
* Linear and PWM Dimming Capability
* Output Short Circuit Protection with Skip Mode
* Requires Few External Components for Operation

APPLICATIONS

* DC/DC or AC/DC LED Driver Applications
* LED Street Lighting
* Back Lighting of Flat Panel Displays
* General Purpose Constant Current Source
* Signage and Decorative LED Lighting
* Chargers

About us  |  Products  |  Contact us
Copyright 2011 UTC All received