lx1990 Microsemi Corporation, lx1990 Datasheet - Page 8
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lx1990
Manufacturer Part Number
lx1990
Description
Dual Programmable Led Current Sink
Manufacturer
Microsemi Corporation
Datasheet
1.LX1990.pdf
(11 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
lx1990ILM
Manufacturer:
Microsemi Analog Mixed Signal
Quantity:
28 625
Company:
Part Number:
lx1990ILM-TR
Manufacturer:
WJ
Quantity:
120
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: 714-893-2570
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