LT3003EMSE#TRPBF datasheet, PDF

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LT3003EMSE#TRPBF: DescriptionIC LED DRIVER RGLTR DIM 10MSOP; CategoryPower/power management The power supply circuit; File Size616KB，9 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html; Environmental Compliance

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LT3003EMSE#TRPBF Overview

IC LED DRIVER RGLTR DIM 10MSOP

LT3003EMSE#TRPBF Parametric

Parameter Name	Attribute value
Brand Name	Linear Technology
Is it Rohs certified?	conform to
Parts packaging code	MSOP
package instruction	HTSSOP,
Contacts	10
Manufacturer packaging code	MSE
Reach Compliance Code	compliant
ECCN code	EAR99
Analog Integrated Circuits - Other Types	FLUORESCENT LIGHT CONTROLLER
Control Technology	PULSE WIDTH MODULATION
Maximum input voltage	36 V
Minimum input voltage	3 V
Nominal input voltage	3 V
JESD-30 code	S-PDSO-G10
JESD-609 code	e3
length	3 mm
Humidity sensitivity level	1
Number of functions	1
Number of terminals	10
Maximum operating temperature	85 °C
Minimum operating temperature
Package body material	PLASTIC/EPOXY
encapsulated code	HTSSOP
Package shape	SQUARE
Package form	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Maximum seat height	1.1 mm
surface mount	YES
Switch configuration	BUCK-BOOST
Temperature level	COMMERCIAL EXTENDED
Terminal surface	Matte Tin (Sn)
Terminal form	GULL WING
Terminal pitch	0.5 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
width	3 mm
Base Number Matches	1

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QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 994

LT3003

DESCRIPTION

Demonstration circuit 994 features the LT3003 three

channel LED ballaster with PWM in a 10-lead MSOP

thermally enhanced MSE package. The demonstration

circuit is designed to ballast three channels of LED

current from 100mA to 350mA per channel. The

PWM dimming function of the LT3003 eliminates the

need for discrete MOSFETs. The LT3003 internally

performs the level-shift required for non-ground

referred PWM dimming in the buck mode and buck-

boost mode topologies allowing PWM dimming input

requirements to remain at logic-level. PWM dimming

capabilities reach 3000:1 at 100Hz. Over temperature

protection provides two open-collector pull-down

outputs for direct interface with the compensation pin

of most LT LED drivers and for use with a

microcontroller. Additional thermal shutdown

prevents the LT3003 from getting too hot.

The LT3003 can be configured in all LED driver

topologies as long as there are three strings of LEDs

and the pin voltage requirements are met. The boost,

buck mode, buck-boost mode, SEPIC, and buck LED

driver topologies can all use the LT3003 three

channel ballaster with PWM. The shutdown pin can

be tied to the switcher shutdown pin or in buck-boost

mode it must be tied to the PWM pin.

When a single LED channel is open and has no

current, the other two channels cut back their current

to zero or almost zero in order to protect themselves.

The LED current per string rating is between 100mA

and 350mA. The maximum voltage on VMAX pin is

48V and the maximum voltage on VIN pin is 40V.

For more details, please read the datasheet.

Design files for this circuit board are available. Call

the LTC factory.

LT is a registered trademark of Linear Technology Corporation

THREE CHANNEL LED BALLASTER WITH PWM

QUICK START PROCEDURE

Follow the test procedure outlined below and see

Figure1 to setup and test the LT3003 in the boost LED

driver topology. The LT3003 needs to run with three

strings of LEDs and an LED driver. The LEDs and LED

driver do not come with DC994A, it is a standalone

demonstration circuit that is meant to be used with

different LED drivers in different topologies for

evaluation.

1. Connect the three strings of LEDs from the

LED+ terminal of the boost LED driver to the

three LED terminals of the DC994A.

2. Connect the VEE terminal of the DC994A to

the LED- (GND) terminal of the boost LED

driver.

3. Connect the shutdown terminal of the

DC994A to the shutdown terminal of the LED

driver or to the VIN terminal of the DC994A if

the shutdown function is not being used.

4. Connect the VMAX terminal of the DC994A to

the output voltage at the output capacitor of

the boost LED driver. The DC841A shown in

Figure 1 does not have a terminal for this

node, so a wire has to be soldered to the

output capacitor.

5. Connect a 3.3V or 5V bench supply with

power OFF to the VIN and GND terminals of

DC994A.

6. Connect a 3V to 10V bench supply with power

OFF to the VIN and GND terminals of DC841A.

7. Turn on the input power supply for the

DC994A.

LT3003EMSE#TRPBF Related Products

	LT3003EMSE#TRPBF	DC994A	LT3003EMSE#PBF
Description	IC LED DRIVER RGLTR DIM 10MSOP	eval board led driver lt3003	IC LED DRIVER RGLTR DIM 10MSOP
Brand Name	Linear Technology	-	Linear Technology
Is it Rohs certified?	conform to	-	conform to
Parts packaging code	MSOP	-	MSOP
package instruction	HTSSOP,	-	HTSSOP,
Contacts	10	-	10
Manufacturer packaging code	MSE	-	MSE
Reach Compliance Code	compliant	-	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	36 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	e3	-	e3
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
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)	260	-	260
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	Matte Tin (Sn)	-	Matte Tin (Sn)
Terminal form	GULL WING	-	GULL WING
Terminal pitch	0.5 mm	-	0.5 mm
Terminal location	DUAL	-	DUAL
Maximum time at peak reflow temperature	30	-	30
width	3 mm	-	3 mm
Base Number Matches	1	-	1

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