LX1990ILM Microsemi Analog Mixed Signal Group, LX1990ILM Datasheet
LX1990ILM
Specifications of LX1990ILM
Available stocks
Related parts for LX1990ILM
LX1990ILM Summary of contents
Page 1
... IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com 5V - Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX1990ILM-TR) Copyright © 2001 Rev. 1.0d, 2005-03-14 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Dual Programmable LED Current Sink ® ...
Page 2
Supply Voltage (V ) ....................................................................................... 6V DD ENA Voltage..................................................................................................... 6V I Maximum Current.............................................................. Internally Limited SET I ...
Page 3
Parameter Supply Voltage ( ENA (ENABLE) Input ...
Page 4
TM VDD ENABLE Bias Copyright © 2001 Rev. 1.0d, 2005-03-14 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Dual Programmable LED Current Sink ® ...
Page 5
UNCTIONAL ESCRIPTION The LX1990 is designed to drive LED’s used in display illumination and signaling applications such as cellular telephones and PDA’s. With a 5V supply, the two independently regulated constant current outputs can drive 2 white ...
Page 6
TM VDD = 5V, ENA = 5V Vs. Temperature @ I OUT 20.8 IOUTA @ 5V 20.6 20.4 20.2 20 IOUT A @ 2.7V 1 9.8 1 9.6 -45 - Tem p (° ...
Page 7
TM Figure 2 – Auto Dashboard or Instrument Front Panel LED Array +5V VDD ENA ON/OFF ISET GND 1.25V Figure 3 – Color LCD Display & Keypad Illumination Figure 4 – Variable Current ...
Page 8
TM I VDD OUTB PWM ENA I OUTA ISET GND R SET Figure 5 – PWM on Enabled (Lowest IQ OFF VDD I O UTB ENA I O UTA ISET GND R SET DIV ...
Page 9
TM 3.3V ON/OFF PW M 10K 100K Figure 11 – Using the LX1990 With High Voltage Supplies Copyright © 2001 Rev. 1.0d, 2005-03-14 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Dual Programmable LED Current Sink ® A ...
Page 10
TM LM 6-Pin Plastic MLP-Micro Exposed Pad Copyright © 2001 Rev. 1.0d, 2005-03-14 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Dual Programmable LED Current Sink ® ...
Page 11
TM PRODUCTION DATA – Information contained in this document is proprietary to Microsemi and is current as of publication date. This document may not be modified in any way without the express written consent of Microsemi. Product processing does not ...