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LT3003EMSE

Description
LED Lighting Drivers LT3003 - 3-Channel LED Ballaster with PWM
CategoryPower/power management    The power supply circuit   
File Size204KB,16 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Download user manual Parametric Compare View All

LT3003EMSE Overview

LED Lighting Drivers LT3003 - 3-Channel LED Ballaster with PWM

LT3003EMSE Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
package instructionPLASTIC, MSOP-10
Reach Compliance Codenot_compliant
ECCN codeEAR99
Analog Integrated Circuits - Other TypesFLUORESCENT LIGHT CONTROLLER
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage40 V
Minimum input voltage3 V
Nominal input voltage3 V
JESD-30 codeS-PDSO-G10
JESD-609 codee0
length3 mm
Humidity sensitivity level1
Number of functions1
Number of terminals10
Maximum operating temperature85 °C
Minimum operating temperature
Maximum output current0.55 A
Package body materialPLASTIC/EPOXY
encapsulated codeHTSSOP
Package shapeSQUARE
Package formSMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)235
Certification statusNot Qualified
Maximum seat height1.1 mm
surface mountYES
Switch configurationBUCK-BOOST
Temperature levelCOMMERCIAL EXTENDED
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.5 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width3 mm
Base Number Matches1
FEATURES
LT3003
3-Channel LED
Ballaster with PWM
DESCRIPTION
The LT
®
3003 drives three separate strings of LEDs up
to 350mA/channel with 3% accurate current matching,
resulting in uniform LED brightness and intensity. This
approach is superior to conventional methods of running
three separate channels with external ballast resistors
requiring expensive factory calibration.
The LT3003 operates in boost, buck and buck-boost mode.
A True Color PWM Dimming ratio of up to 3000:1 is achiev-
able using a logic-level signal at the PWM pin for all modes
without the need for external level-shifting circuitry. For
applications with input supply above and below the output
voltage of the LED strings, the LT3003 allows the LEDs to
be returned to the input supply (buck-boost mode) instead
of being limited to only SEPIC solutions.
The LT3003 is ideal for high power LED driver applications
such as TFT LCD backlighting and heads-up displays. Ad-
ditional overtemperature outputs allow appropriate system
management for increased reliability.
The LT3003 is available in a small 10-pin MSE package.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
True Color PWM is a trademark of Linear Technolology Corporation.
All other trademarks are the property of their respective owners.
3% LED Current Matching
Up to 350mA Continuous Current per LED String
Up to 3000:1 True Color PWM
TM
Dimming Range
PWM Input Disconnects LED Strings
Can Operate in Buck, Boost and Buck-Boost Modes
Wide Input Range: 3V to 40V
Overtemperature Outputs
Works with LT1618, LT3477, LT3474, LT3475,
LT3476, LTC
®
3783
Thermally Enhanced 10-Pin MSOP Package
APPLICATIONS
High Power LED Ballaster
Automotive Lighting
Video Cameras
TFT LCD Backlighting
TYPICAL APPLICATION
Buck Mode LT3003 with the LT3476
PV
IN
32V
1µF
0.1Ω
Efficiency
90
8
×
3 = 24 LEDs
350mA PER STRING
85
80
75
70
65
0.33µF
LED1
V
MAX
SHDN
PWM
DIMMING
PWM
GND
LED2
LT3003
OT1 OT2
LED3
V
IN
1µF
V
EE
EFFICIENCY (%)
CAP LED
V
IN
3V TO 16V
10µF
V
IN
PWM
V
C
1nF
SW
10µH
60
PV
IN
= 32V
NUMBER OF LEDS = 8
×
3 = 24
0
1000
400
600
800
200
TOTAL LED CURRENT (mA)
1200
SIMPLIFIED LT3476
GND
3003 TA01a
3003 TA01b
3003fa
1

LT3003EMSE Related Products

LT3003EMSE LT3003EMSE#TR
Description LED Lighting Drivers LT3003 - 3-Channel LED Ballaster with PWM LED lighting driver LT3003 - 3-Channel LED Ballaster with PWM
Is it Rohs certified? incompatible incompatible
package instruction PLASTIC, MSOP-10 PLASTIC, MSOP-10
Reach Compliance Code not_compliant not_compliant
ECCN code EAR99 EAR99
Analog Integrated Circuits - Other Types FLUORESCENT LIGHT CONTROLLER FLUORESCENT LIGHT CONTROLLER
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Maximum input voltage 40 V 40 V
Minimum input voltage 3 V 3 V
Nominal input voltage 3 V 3 V
JESD-30 code S-PDSO-G10 S-PDSO-G10
JESD-609 code e0 e0
length 3 mm 3 mm
Humidity sensitivity level 1 1
Number of functions 1 1
Number of terminals 10 10
Maximum operating temperature 85 °C 85 °C
Maximum output current 0.55 A 0.55 A
Package body material PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code HTSSOP HTSSOP
Package shape SQUARE SQUARE
Package form SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 235 235
Certification status Not Qualified Not Qualified
Maximum seat height 1.1 mm 1.1 mm
surface mount YES YES
Switch configuration BUCK-BOOST BUCK-BOOST
Temperature level COMMERCIAL EXTENDED COMMERCIAL EXTENDED
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Terminal form GULL WING GULL WING
Terminal pitch 0.5 mm 0.5 mm
Terminal location DUAL DUAL
Maximum time at peak reflow temperature 20 20
width 3 mm 3 mm
Base Number Matches 1 1
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