LX1995-1CSE-TR MICROSEMI [Microsemi Corporation], LX1995-1CSE-TR Datasheet - Page 5

• Manufacturer Part Number: LX1995-1CSE-TR
• Description: Miniature LED Driver
• Manufacturer: MICROSEMI [Microsemi Corporation]

Copyright © 2000
Rev. 1.1, 2005-07-07
The component values shown are only examples for a working system. Actual values will vary greatly depending on desired parameters, efficiency, and layout
constraints.
TM
V
BAT
V
= 2.0V to 5.0V
BAT
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
On
V
DC = 10% to 90%
I
LED
PWM
= 2.0V to 5.0V
Off
Figure 4 – PWM to Analog Voltage Dimming LED Driver Application
= 0mA to 20mA
= 3.3V
ON OFF
Figure 5 – Binary Dimming LED Driver Application
>10kHz
MSB
A P P L I C A T I O N C I R C U I T S
1
1
0
0
1206 Case Size
IN
SHDN
LX1995
10µH
MSB
Integrated Products Division
LSB
L
LSB
GND
1
1
0
1
0
®
Microsemi
V
SW
V
FB
0.25 x I
0.50 x I
0.75 x I
CC
CC
I
I
LED
MAX
IN
SHDN
1206 Case Size
LX1995
2R
320mV
R
MAX
MAX
MAX
10µH
GND
L
1
9.09kΩ
2R - R
SW
R
FB
0.1µF
Rcs = (0.32 x R) / {[R - (0.375 x R
R
C
A
= (0.64 x R) / V
4
2
A
P
Miniature LED Driver
RODUCTION
R
D
A
90.9kΩ
R
.1µF
C
1
1
3
CC
11.2kΩ
0.1µF
R
C
CS
R
1
D
2
ATA
A
)] x I
S
15 Ω
R
HEET
1
MAX
}
LX1995
Page 5