LX1745CPW Microsemi Analog Mixed Signal Group, LX1745CPW Datasheet - Page 2

• 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
Supply Input Voltage ...........................................................................-0.3V to 7V
Feedback Input Voltage (V
Shutdown Input Voltage (V
PWM Input Amplitude (ADJx, BRT).....................................-0.3V to V
Analog Adjust Input Voltage (V
SRC Input Current ................................................................................ 500mA
Operating Temperature Range .........................................................-40°C to 85°C
Maximum Operating Junction Temperature ................................................ 150°C
Storage Temperature Range...........................................................-65°C to 150°C
RoHS / Pb-free 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
THERMAL RESISTANCE
JA
TM
Ground. Currents are positive into, negative out of specified terminal
x denotes respective pin designator 1, 2, or 3
numbers are guidelines for the thermal performance of the device/pc-board system. All of the
Plastic TSSOP 20-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
FBx
SHDN
T H E R M A L D A T A
J
) ...............................................-0.3V to V
= T
x
ADJx
) ..........................................-0.3V to V
A
+ (P
, V
D
BRT
x θ
A
JA
)............................-0.3V to V
MBIENT
).
Integrated Products Division
, θ
®
Microsemi
JA
Triple Output Boost – LED Driver / LCD Bias
.
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
SHDN2
D
ADJ1
GND
P A C K A G E P I N O U T
SW1
DRV
SRC
SW2
ATASHEET
IN
1
2
3
4
5
6
7
8
9
10
PW P
(Top View)
ACKAGE
20
19
18
17
16
15
14
13
12
11
LX1745
GND
FB1
REF
OVP
BRT
CS
LFB
ADJ2
FB2
GND
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