LT3518 LINER [Linear Technology], LT3518 Datasheet

LT3518

Manufacturer Part Number

LT3518

Description

Full-Featured LED Driver with 2.3A Switch Current

Manufacturer

LINER [Linear Technology]

Datasheet

1.LT3518.pdf (20 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

H&T Electronics

Part Number:

LT3518EFE#TRPBF

Quantity:

3 400

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LT3518EUF

Manufacturer:

Quantity:

10 000

Company:

H&T Electronics

Part Number:

LT3518EUF#TRPBF

Quantity:

8 000

Company:

H&T Electronics

Part Number:

LT3518HFE#PBF

Quantity:

1 600

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LT3518HUF

Manufacturer:

Quantity:

10 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LT3518HUF#PBF

Manufacturer:

MAX

Quantity:

Company:

Amily Shenzhen XNWY Technology Co., Ltd

Part Number:

LT3518HUF#TPBF

Company:

H&T Electronics

Part Number:

LT3518HUF#TRPBF

Quantity:

6 500

Company:

Meier Automation Equipment Co., Limited

Part Number:

LT3518IFE

Manufacturer:

LINEAR/凌特

Quantity:

20 000

Company:

H&T Electronics

Part Number:

LT3518IFE#PBF

Quantity:

5 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LT3518IUF

Manufacturer:

Quantity:

10 000

Current page: 1 of 20
Download datasheet (273Kb)

FEATURES

APPLICATIONS

TYPICAL APPLICATION

3000:1 True Color PWM™ Dimming Ratio

2.3A, 45V Internal Switch

100mV High Side Current Sense

Open LED Protection

Adjustable Frequency: 250kHz to 2.5MHz

Wide Input Voltage Range:

Operates in Boost, Buck Mode and Buck-Boost Mode

Gate Driver for PMOS LED Disconnect*

Constant-Current and Constant-Voltage Regulation

CTRL Pin Provides 10:1 Analog Dimming

Low Shutdown Current: <1μA

Available in (4mm × 4mm) 16-Lead QFN and 16-Pin

TSSOP Packages

Display Backlighting

Automotive and Avionic Lighting

Illumination

Scanners

3.3V

24V

2.2μF

Operation from 3V to 30V

Transient Protection to 40V

PWM

REF

2.2μF

1.5A Buck Mode LED Driver

SHDN

CTRL

PWM

SYNC

TGEN

ISP

68mΩ

0.1μF

LT3518

REF

ISN

GND

1.5A

16.9k

1MHz

0.1μF

15μH

10μF

3518 TA01a

DESCRIPTION

The LT

internal 2.3A, 45V switch speciﬁ cally designed to drive

LEDs. The LT3518 operates as a LED driver in boost, buck

mode and buck-boost mode. It combines a traditional

voltage loop and a unique current loop to operate as a

constant-current source or constant-voltage source. Pro-

grammable switching frequency allows optimization of the

external components for efﬁ ciency or component size. The

switching frequency of the LT3518 can be synchronized

to an external clock signal. The LED current is externally

programmable with a 100mV sense resistor. The external

PWM input provides 3000:1 LED dimming. The CTRL pin

provides further 10:1 dimming ratio.

The LT3518 is available in the tiny footprint 16-Lead QFN

(4mm × 4mm) and the 16-Pin TSSOP package. The LT3518

provides a complete solution for both constant-voltage

and constant-current applications.

L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. True Color

PWM is a trademark of Linear Technology Corporation. Patent Pending. All other trademarks are

the property of their respective owners. *Patents Pending.

with 2.3A Switch Current

Full-Featured LED Driver

3518 is a current mode DC/DC converter with an

100

CTRL = V

REF

PWM DUTY CYCLE (%)

Efﬁ ciency

3518 TA01b

100

LT3518

3518fb

Related parts for LT3518

Related keywords

LT3518 datasheet
LT3518 data sheet
LT3518 pdf datasheet
LT3518 component
LT3518 part
LT3518 distributor
LT3518 RoHS
LT3518 datasheet download