LM3503ITL-44 National Semiconductor, LM3503ITL-44 Datasheet - Page 10

IC LED DRVR WHT BCKLT 10MICROSMD

LM3503ITL-44

Manufacturer Part Number
LM3503ITL-44
Description
IC LED DRVR WHT BCKLT 10MICROSMD
Manufacturer
National Semiconductor
Series
PowerWise®r
Type
Backlight, White LEDr
Datasheet

Specifications of LM3503ITL-44

Constant Current
Yes
Topology
PWM, Step-Up (Boost)
Number Of Outputs
2
Internal Driver
Yes
Type - Primary
Backlight
Type - Secondary
White LED
Frequency
800kHz ~ 1.2MHz
Voltage - Supply
2.5 V ~ 5.5 V
Voltage - Output
41 V ~ 42 V
Mounting Type
Surface Mount
Package / Case
10-MicroSMD
Operating Temperature
-40°C ~ 85°C
Current - Output / Channel
750mA
Internal Switch(s)
Yes
Efficiency
80%
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
LM3503ITL-44TR
Typical Performance Characteristics
(See Typical Application Circuit : L=DO1608C-223 and
D=B150-13. Efficiency: η = P
/ P
= [(V
– V
) * I
] / [V
* I
]. T
= +25˚C, unless otherwise stated.) (Continued)
OUT
IN
OUT
Fb
OUT
IN
IN
A
6 LED Efficiency vs LED Current
4 LED Efficiency vs LED Current
20128612
20128613
Cntrl Pin Current vs Cntrl Pin Voltage
Maximum Duty Cycle vs Temperature
20128614
20128615
En1 Pin Current vs En1 Pin Voltage
En2 Pin Current vs En2 Pin Voltage
20128663
20128664
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10

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