LT3496EUFD#TRPBF datasheet, PDF

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LT3496EUFD#TRPBF: DescriptionIC LED DRIVER RGLTR DIM 1A 28QFN; CategoryAnalog mixed-signal IC Drivers and interfaces; File Size326KB，20 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html; Environmental Compliance

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LT3496EUFD#TRPBF Overview

IC LED DRIVER RGLTR DIM 1A 28QFN

LT3496EUFD#TRPBF Parametric

Parameter Name	Attribute value
Brand Name	Linear Technology
Is it Rohs certified?	conform to
Parts packaging code	QFN
package instruction	HVQCCN, LCC28,.16X.2,20
Contacts	28
Manufacturer packaging code	UFD
Reach Compliance Code	compliant
ECCN code	EAR99
data entry mode	PARALLEL
Interface integrated circuit type	LED DISPLAY DRIVER
JESD-30 code	R-PQCC-N28
JESD-609 code	e3
length	5 mm
Humidity sensitivity level	1
Multiplex display function	NO
Number of functions	1
Number of segments	3
Number of terminals	28
Maximum operating temperature	125 °C
Minimum operating temperature
Package body material	PLASTIC/EPOXY
encapsulated code	HVQCCN
Encapsulate equivalent code	LCC28,.16X.2,20
Package shape	RECTANGULAR
Package form	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	260
power supply	5 V
Certification status	Not Qualified
Maximum seat height	0.8 mm
Maximum supply voltage	30 V
Minimum supply voltage	3 V
Nominal supply voltage	5 V
surface mount	YES
technology	BIPOLAR
Temperature level	OTHER
Terminal surface	Matte Tin (Sn)
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	30
width	4 mm
minfmax	1.9 MHz
Base Number Matches	1

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LT3496

Triple Output LED Driver

Features

Description

The LT

3496 is a triple output DC/DC converter designed

to operate as a constant-current source and is ideal for

driving LEDs. The LT3496 works in buck, boost or buck-

boost mode. The LT3496 uses a fixed frequency, current

mode architecture resulting in stable operation over a

wide range of supply and output voltages. A frequency

adjust pin allows the user to program switching frequency

between 330kHz and 2.1MHz to optimize efficiency and

external component size.

The LT3496 supports 3000:1 dimming control on each

channel. Each of the three regulators is independently

operated by that channel’s PWM signal. The PWM feature

allows precise adjustment of the color mixing or dimming

ratio of the LED source. Each of the three channels has

a built-in gate driver to drive an external LED-disconnect

P-channel MOSFET, allowing high dimming range. The

output current range of each channel of the LT3496 is

programmed with an external sense resistor.

The CTRL pins are used to adjust the LED currents either

for analog dimming or overtemperature protection.

LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and

ThinSOT and True Color PWM are trademarks of Linear Technology Corporation. All other

trademarks are the property of their respective owners. Protected by U.S. Patents, including

7199560, 7321203, and others pending.

True Color PWM™ Dimming Delivers Up to 3000:1

Dimming Ratio

Built-In Gate Driver for PMOS LED Disconnect

Three Independent Driver Channels with 750mA,

45V Internal Switches

Operates in Buck, Boost, Buck-Boost Modes

CTRL Pin Accurately Sets LED Current Sense

Threshold Over a Range of 10mV to 100mV

Adjustable Frequency: 330kHz to 2.1MHz

Open LED Protection

Wide V

Supply Range:

Operation from 3V to 30V

Transient Protection to 40V

Surface Mount Components

28-Lead (4mm

5mm) QFN and TSSOP Packages

applications

RGB Lighting

Billboards and Large Displays

Automotive and Avionic Lighting

Constant-Current Sources

typical application

High Dimming Ratio Triple Output LED Power Supply

42V

CAP1

200m

LED1

TG1

TG2

CAP2

200m

LED2

CAP3

200m

LED3

TG3

PWM

5V/DIV

1µF

3000:1 PWM Dimming at 120Hz

7 LEDs

0.5A

0.5A/DIV

LED

0.5A/DIV

0.5µs/DIV

3496 TA01b

18µH

0.47µF 0.47µF

18µH

0.47µF

SW1

CAP1, CAP2, CAP3

LED1, LED2, LED3

PWM1, PWM2, PWM3

SHDN

SW2

LT3496

GND

3V TO 24V

1µF

PWM1, PWM2, PWM3

SHDN

TG1, TG2, TG3

VC1, VC2, VC3

REF

CTRL1, CTRL2, CTRL3

ADJ

OVP1, OVP2, OVP3

SW3

22k

470pF

3496 TA01a

3496ff

LT3496EUFD#TRPBF Related Products

	LT3496EUFD#TRPBF	LT3496IUFD#PBF	LT3496HUFD#TRPBF	LT3496IUFD#TRPBF	LT3496HUFD#PBF	LT3496EFE#TRPBF	LT3496EUFD#PBF	LT3496EFE#PBF	LT3496IFE#TRPBF	LT3496IFE#PBF
Description	IC LED DRIVER RGLTR DIM 1A 28QFN	IC led drvr wht/rgb bcklt 28-qfn	IC LED DRIVER RGLTR DIM 1A 28QFN	IC LED DRIVER RGLTR DIM 1A 28QFN	IC LED DRIVER RGLTR DIM 1A 28QFN	IC LED DRVR RGLTR DIM 1A 28TSSOP	IC LED DRIVER RGLTR DIM 1A 28QFN	IC LED DRVR RGLTR DIM 1A 28TSSOP	IC LED DRVR RGLTR DIM 1A 28TSSOP	IC LED DRVR RGLTR DIM 1A 28TSSOP
Brand Name	Linear Technology	Linear Technology	-	-	-	Linear Technology	Linear Technology	Linear Technology	Linear Technology	Linear Technology
Is it Rohs certified?	conform to	conform to	-	-	-	conform to	conform to	conform to	conform to	conform to
Parts packaging code	QFN	QFN	-	-	-	TSSOP	QFN	TSSOP	TSSOP	TSSOP
package instruction	HVQCCN, LCC28,.16X.2,20	HVQCCN, LCC28,.16X.2,20	-	-	-	HTSSOP, TSSOP28,.25	HVQCCN, LCC28,.16X.2,20	HTSSOP, TSSOP28,.25	HTSSOP, TSSOP28,.25	HTSSOP, TSSOP28,.25
Contacts	28	28	-	-	-	28	28	28	28	28
Manufacturer packaging code	UFD	UFD	-	-	-	FE	UFD	FE	FE	FE
Reach Compliance Code	compliant	compliant	-	-	-	compliant	compliant	compliant	compliant	compliant
ECCN code	EAR99	EAR99	-	-	-	EAR99	EAR99	EAR99	EAR99	EAR99
data entry mode	PARALLEL	PARALLEL	-	-	-	PARALLEL	PARALLEL	PARALLEL	PARALLEL	PARALLEL
Interface integrated circuit type	LED DISPLAY DRIVER	LED DISPLAY DRIVER	-	-	-	LED DISPLAY DRIVER	LED DISPLAY DRIVER	LED DISPLAY DRIVER	LED DISPLAY DRIVER	LED DISPLAY DRIVER
JESD-30 code	R-PQCC-N28	R-PQCC-N28	-	-	-	R-PDSO-G28	R-PQCC-N28	R-PDSO-G28	R-PDSO-G28	R-PDSO-G28
JESD-609 code	e3	e3	-	-	-	e3	e3	e3	e3	e3
length	5 mm	5 mm	-	-	-	9.7 mm	5 mm	9.7 mm	9.7 mm	9.7 mm
Humidity sensitivity level	1	1	-	-	-	1	1	1	1	1
Multiplex display function	NO	NO	-	-	-	NO	NO	NO	NO	NO
Number of functions	1	1	-	-	-	1	1	1	1	1
Number of segments	3	3	-	-	-	3	3	3	3	3
Number of terminals	28	28	-	-	-	28	28	28	28	28
Maximum operating temperature	125 °C	125 °C	-	-	-	125 °C	125 °C	125 °C	125 °C	125 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	-	-	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	HVQCCN	HVQCCN	-	-	-	HTSSOP	HVQCCN	HTSSOP	HTSSOP	HTSSOP
Encapsulate equivalent code	LCC28,.16X.2,20	LCC28,.16X.2,20	-	-	-	TSSOP28,.25	LCC28,.16X.2,20	TSSOP28,.25	TSSOP28,.25	TSSOP28,.25
Package shape	RECTANGULAR	RECTANGULAR	-	-	-	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	-	-	-	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260	260	-	-	-	260	260	260	250	250
power supply	5 V	5 V	-	-	-	5 V	5 V	5 V	5 V	5 V
Certification status	Not Qualified	Not Qualified	-	-	-	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	0.8 mm	0.8 mm	-	-	-	1.2 mm	0.8 mm	1.2 mm	1.2 mm	1.2 mm
Maximum supply voltage	30 V	30 V	-	-	-	30 V	30 V	30 V	30 V	30 V
Minimum supply voltage	3 V	3 V	-	-	-	3 V	3 V	3 V	3 V	3 V
Nominal supply voltage	5 V	5 V	-	-	-	5 V	5 V	5 V	5 V	5 V
surface mount	YES	YES	-	-	-	YES	YES	YES	YES	YES
technology	BIPOLAR	BIPOLAR	-	-	-	BIPOLAR	BIPOLAR	BIPOLAR	BIPOLAR	BIPOLAR
Temperature level	OTHER	AUTOMOTIVE	-	-	-	OTHER	OTHER	OTHER	AUTOMOTIVE	AUTOMOTIVE
Terminal surface	Matte Tin (Sn)	Matte Tin (Sn)	-	-	-	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)
Terminal form	NO LEAD	NO LEAD	-	-	-	GULL WING	NO LEAD	GULL WING	GULL WING	GULL WING
Terminal pitch	0.5 mm	0.5 mm	-	-	-	0.65 mm	0.5 mm	0.65 mm	0.65 mm	0.65 mm
Terminal location	QUAD	QUAD	-	-	-	DUAL	QUAD	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	30	30	-	-	-	30	30	30	NOT SPECIFIED	NOT SPECIFIED
width	4 mm	4 mm	-	-	-	4.4 mm	4 mm	4.4 mm	4.4 mm	4.4 mm
minfmax	1.9 MHz	1.9 MHz	-	-	-	1.9 MHz	1.9 MHz	1.9 MHz	1.9 MHz	1.9 MHz

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