LX1990ILM Microsemi Analog Mixed Signal Group, LX1990ILM Datasheet - Page 8

• Manufacturer Part Number: LX1990ILM
• Description: IC LED DRIVER LINEAR 6-MLP
• Manufacturer: Microsemi Analog Mixed Signal Group
• Type: Linear (Non-Switching)r

Specifications of LX1990ILM

• Constant Current: Yes
• Topology: PWM
• Number Of Outputs: 2
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Voltage - Supply: 2.75 V ~ 5.5 V
• Voltage - Output: 0.1 V ~ 10 V
• Mounting Type: Surface Mount
• Package / Case: 6-MLP
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 30mA
• Internal Switch(s): Yes
• For Use With: LX1990-03EVAL - BOARD EVAL LED DRIVER 2CHANNELLX1990-02 EVAL - EVAL BOARD FOR LED DRIVER
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Frequency: -
• Efficiency: -

Copyright © 2001
Rev. 1.0d, 2005-03-14
10mA /
Figure 8 – PWM Dimming Totem Pole
DIV
1V /
DIV
ON / OFF
Figure 5 – PWM on Enabled
TM
PWM
PW M
R
SET
(Lowest IQ)
Output
R
10µs / DIV
SET
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
ENA
VDD
ISET GND
ENA
ISET GND
VDD
I
I
OUTB
OUTA
I
I
O UTB
O UTA
10µA /
DIV
1V /
DIV
PWM
D I M M I N G M E T H O D S
C
Figure 6 – Precision 2 Steps
Figure 9 – PWM – Low EMI
SLOPE
8.2nF
ON / OFF
Integrated Products
®
Microsemi
10K
R
Wide Range
STEP
100K
1K
5K
20µs / DIV
ENA
ISET GND
VDD
Dual Programmable LED Current Sink
R
MIN
ENA
VDD
ISET GND
I
I
OUTB
OUTA
2N2222A
I
I
OUTB
OUTA
Figure 10 – PWM – Wide Range 500:1 +
10mA /
DIV
1V /
DIV
PWM
ON / OFF
Figure 7 – Manual Control
3V
R
MAX
10K
R
MIN
100K
6.3K
20µs / DIV
VDD
ENA
ISET GND
ENA
VDD
ISET GND
I
I
OUTB
OUTA
2N2222
LX1990
I
I
OUTB
OUTA
Page 8