LX1745CPW Microsemi Analog Mixed Signal Group, LX1745CPW Datasheet - Page 6

• Manufacturer Part Number: LX1745CPW
• Description: IC LED DRVR WT/CLR BCKLT 20TSSOP
• Manufacturer: Microsemi Analog Mixed Signal Group
• Type: Backlight, White LED, Color LEDr

Specifications of LX1745CPW

• Constant Current: Yes
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 3
• Internal Driver: Both
• Type - Primary: Backlight
• Type - Secondary: Color, White LED
• Voltage - Supply: 1.6 V ~ 6 V
• Voltage - Output: 25V
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 100mA
• Internal Switch(s): Yes
• Efficiency: 90%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Frequency: -

Copyright © 2000
Rev. 1.2, 2006-02-27
V
LCD1
- V
TM
= V
LCD
Figure 2 – LED Driver with Full-Range Dimming plus LCD Bias With Contrast Adjustment Via PWM Input
IN
(Feedforward Capacitor)
to 25V
V
LCD2
= V
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
IN
V
to 25V
BAT
= 1.6V to 6.0V
R
R
1
2
D
D
D
3
2
4
A P P L I C A T I O N C I R C U I T S
R
R
3
4
Integrated Products Division
®
Microsemi
D
3
Triple Output Boost – LED Driver / LCD Bias
SW1
FB1
SW2
REF
FB2
GND
IN
SHDN2
1206 Case Size
LX1745
47μH
L
1
LSHDN
SHDN1
ADJ2
ADJ1
DRV
SRC
OVP
BRT
LFB
CS
P
RODUCTION
ON OFF
ON OFF
ON OFF
D
1
D
R
R
ATASHEET
5
6
R
CS
I
4.7μF
LED
C
1
= 20mA to 0mA
R
15Ω (typ)
LED
LX1745
Page 6