LX1745CPW Microsemi Analog Mixed Signal Group, LX1745CPW Datasheet - Page 11

• 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
TM
Note: All pins are referenced to ground.
SHDN1
SHDN2
VLCD1
VLCD2
-VLCD
SHDN
VOUT
Name
FDBK
ADJ1
ADJ2
GND
BRT
REF
VIN
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
0 to VIN-100mV
Input/Output
0 to 350mV
1.19V Typ.
0 to VIN
0 to VIN
0 to 6V
Range
≥-25V
≤25V
≤25V
≤25V
0V
Table 2: Input and Output Pin Assignments
Main power supply for outputs.
Common ground reference.
Apply a DC voltage or a PWM voltage to this pin to adjust the LCD1
output voltage. PWM inputs should be greater than 120Hz.
Apply a DC voltage or a PWM voltage to this pin to adjust the LCD2
output voltage. PWM inputs should be greater than 120Hz.
Pulled up to VIN on board (10KΩ), Ground to inhibit the LED driver
output (VOUT).
Pulled up to VIN on board (10KΩ), Ground to inhibit the VLCD1.
Pulled up to VIN on board (10KΩ), Ground to inhibit the VLCD2.
Output voltage test point. Programmed for 18V output, adjustable up to
25V.
Output voltage mirror of VLCD1
Output voltage test point. Programmed for 22V output, adjustable up to
25V.
LED drive voltage probe point.
LED current sense feedback.
Apply a DC voltage or a PWM voltage to this pin to adjust the LED
current. PWM inputs should be greater than 120Hz with a DC portion
less than 350mV.
Buffered IC reference output.
E V A L U A T I O N B O A R D
Integrated Products Division
®
Microsemi
Triple Output Boost – LED Driver / LCD Bias
Description
P
RODUCTION
D
ATASHEET
LX1745
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