lx1991 Microsemi Corporation, lx1991 Datasheet - Page 3

• Manufacturer Part Number: lx1991
• Description: Six Output Programmable Led Current Sink
• Manufacturer: Microsemi Corporation

Copyright © 2001
Rev. 1.1, 10/27/2005
*At output voltages greater than 5V total power dissipation when using all six outputs at maximum current will exceed power rating of package and
Supply Voltage (V
ENABLE Input Voltage
DIG_DIM Input Voltage
C
I
R
SINK
SINK
SET
ambient of 85°C.
SLOPE
SET
Voltage
Current Programming Resistor Range
1
1
Capacitance Range
To SINK
To SINK
TM
DIG_DIM
ENABLE
VDD
6
6
Output Voltage Range
Maximum Output Current
DD
)
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
Bias
R E C O M M E N D E D O P E R A T I N G C O N D I T I O N S
Parameter
1.25V
REF
S I M P L I F I E D B L O C K D I A G R A M
I
SET-
-
Figure 1 – Simplified Block Diagram
I
SET+
Integrated Products
®
Microsemi
Slew Control
Six Output Programmable LED Current Sink
C
SLOPE
1:1 Current
Mirror
P
RODUCTION
2V
0V
S I N K
SINK
Min
4.5
0.5
0
0
0
1
24X
24X
6
1
SINK
SINK
LX1991
D
Typ
24X
ATA
24X
2
3
5
SINK
S
SINK
HEET
24X
24X
3
4
Max
1.26
V
V
5.5
40*
40
30
DD
DD
GND
LX1991
Units
KΩ
mA
V
V
V
V
V
Page 3