LX1744CPW Microsemi Analog Mixed Signal Group, LX1744CPW Datasheet - Page 2

• Manufacturer Part Number: LX1744CPW
• Description: IC LED DRVR WT/CLR BCKLT 14TSSOP
• Manufacturer: Microsemi Analog Mixed Signal Group
• Type: Backlight, White LED, Color LEDr

Specifications of LX1744CPW

• Constant Current: Yes
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 2
• 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: 14-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. 1.1b, 2005-03-01
Supply Input Voltage ...........................................................................-0.3V to 7V
Feedback Input Voltage (V
Shutdown Input Voltage (V
PWM Input Amplitude (ADJ, BRT).......................................-0.3V to V
Analog Adjust Input Voltage (V
SRC Input Current ................................................................................ 800mA
Operating Temperature Range .........................................................-40°C to 85°C
Maximum Operating Junction Temperature ................................................ 150°C
Storage Temperature Range...........................................................-65°C to 150°C
RoHS Peak Package Solder Reflow Temperature
(40 second maximum exposure) ..................................................... 260°C (+0, -5)
Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to
Junction Temperature Calculation: T
The θ
above assume no ambient airflow.
PW
LQ
THERMAL RESISTANCE
THERMAL RESISTANCE
JA
Ground. Currents are positive into, negative out of specified terminal
numbers are guidelines for the thermal performance of the device/pc-board system. All of the
I N T E G R A T E D
Plastic MLPQ 16-Pin
Plastic TSSOP 14-Pin
A B S O L U T E M A X I M U M R A T I N G S
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
-
-
JUNCTION TO
JUNCTION TO
FB
SHDN
T H E R M A L D A T A
, V
J
= T
LFB
, V
ADJ
P R O D U C T S
A
+ (P
).......................................-0.3V to V
, V
LSHDN
BRT
D
x θ
A
A
) .............................-0.3V to V
)) ...........................-0.3V to V
JA
MBIENT
MBIENT
).
Integrated Products Division
, θ
, θ
Microsemi
JA
JA
Dual Output Boost – LED Driver / LCD Bias
.
31°C/W
90°C/W
IN
IN
IN
IN
+ 0.3V
+ 0.3V
+ 0.3V
+ 0.3V
P
RMS
RODUCTION
RoHS / Pb-free 100% Matte Tin Lead Finish
SHDN1
LSHDN
D
SHDN
P A C K A G E P I N O U T
ADJ
REF
SW
ADJ
ATASHEET
SW
FB
FB
IN
(“N.C.” = No Internal Connection)
1
2
3
4
PW P
16
LQ P
(Bottom View)
1
2
3
4
5
6
7
5
(Top View)
15
6
ACKAGE
ACKAGE
14
7
14
13
12
11
10
13
9
8
8
LX1744
12
11
10
9
GND
SRC
DRV
CS
OVP
LFB
BRT
DRV
CS
OVP
LFB
Page 2