Datasheet Linear Technology LT3491ESC8#PBF — 数据表

制造商	Linear Technology
系列	LT3491
零件号	LT3491ESC8#PBF

SC70中的白光LED驱动器，集成了肖特基二极管

数据表

PDF, 274 Kb, 修订版: A, 文件上传: Oct 4, 2017

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价格

打包

Package	SC-70
Package Code	SC8
Package Index	05-08-1639

参数化

Architecture	Average Output Current Control
Demo Boards	DC905A
Design Tools	LTspice File
Dimming	PWM, Analog
Export Control	no
Features	Integrated Schottky Diode, True Color PWM Dimming, High Side Current Sense
Frequency	2300 kHz
Ishutdown	8 µA
Isupply	2.6 mA
Max Number of LEDs	6
Monolithic	yes
Number of Outputs	1
Operating Temperature Range	0 to 85 °C
Switch Current	0.35 A
Synchronous	no
Topology	Boost, LED Driver
Vin Max	12 V
Vin Min	2.5 V
Vout Max	24 V

生态计划

RoHS

Compliant

文章

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Mar2006 SC70 LED Driver Drives Six White LEDs from a Single Li-Ion Battery &mdash LT Journal
PDF, 316 Kb, 档案已发布: Mar 28, 2006
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L DESIGN IDEAS SC70 LED Driver Drives Six White LEDs
from a Single Li-Ion Battery by Mayur Kenia
Introduction
The highly integrated LT3491 provides
a compact, simple solution for driving
backlight circuits in battery-powered
portable devices, such as cellular
phones, PDAs, and portable GPS
devices. It features internal compensation, open-LED protection, a 32V
power switch and a 32V Schottky diode
all inside a tiny SC70 package.
Speciп¬Ѓcally, the LT3491 is a п¬Ѓxed
frequency step-up DC/DC converter
that drives up to six white LEDs in
series from a Li-Ion cell. Series connection of the LEDs provides identical
LED currents resulting in uniform
brightness without the need for ballast resistors. In addition, the 2.3MHz
switching frequency allows the use of
tiny inductors and capacitors.
Figure 1 shows how easy it is to drive
six white LEDs from a Li-Ion battery.
Figure 2 shows the efп¬Ѓciency of the six
white LED application circuit. SHUTDOWN AND …

模型线

系列: LT3491 (6)

LT3491EDC#PBF LT3491EDC#TRMPBF LT3491EDC#TRPBF LT3491ESC8#PBF LT3491ESC8#TRMPBF LT3491ESC8#TRPBF

制造商分类

Power Management > LED Driver ICs > Step-Up (Boost) LED Drivers

其他名称:

LT3491ESC8PBF, LT3491ESC8 PBF

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