Datasheet > LT3465_15

LT3465_15

更新时间： 2024-09-17 01:16:35

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
16页	344K
描述
1.2MHz/2.4MHz White LED Drivers with Built-in Schottky in ThinSOT

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LT3465_15 数据手册

LT3465/LT3465A

1.2MHz/2.4MHz White

LED Drivers with Built-in

Schottky in ThinSOT

DESCRIPTIO

FEATURES

The LT^®3465/LT3465A are step-up DC/DC converters

designedtodriveuptosixLEDsinseriesfromaLi-Ioncell.

Series connection of the LEDs provides identical LED

currents and eliminates the need for ballast resistors.

These devices integrate the Schottky diode required exter-

nally on competing devices. Additional features include

output voltage limiting when LEDs are disconnected, one-

pin shutdown and dimming control. The LT3465 has

internal soft-start.

■

Inherently Matched LED Current

■

Drives Up to Six LEDs from a 3.6V Supply

■

No External Schottky Diode Required

1.2MHz Switching Frequency (LT3465)

■

2.4MHz Switching Frequency Above AM Broadcast

Band (LT3465A)

■

V_INRange: 2.7V to 16V

■

V_OUT(MAX)= 30V

■

Automatic Soft-Start (LT3465)

■

Open LED Protection

The LT3465 switches at 1.2MHz, allowing the use of tiny

external components. The faster LT3465A switches at

2.4MHz. Constantfrequencyswitchingresultsinlowinput

noise and a small output capacitor. Just 0.22µF is required

for 3-, 4- or 5-LED applications.

■

High Efficiency: 81% (LT3465) 79% (LT3465A)

Typical

■

Requires Only 0.22µF Output Capacitor

■

Low Profile (1mm) SOT-23

The LT3465 and LT3465A are available in the low profile

APPLICATIO S

(1mm) 6-lead SOT-23 (ThinSOT^TM) package.

■

Cellular Phones

, LTC and LT are registered trademarks of Linear Technology Corporation. ThinSOT is a

trademark of Linear Technology Corporation. All other trademarks are the property of their

respective owners.

■

PDAs, Handheld Computers

■

Digital Cameras

■

MP3 Players

■

GPS Receivers

TYPICAL APPLICATIO

Conversion Efficiency

22µH

= 3.6V

4 LEDs

3V TO 5V

OUT

1µF

0.22µF

LT3465/

LT3465A

CTRL

GND

SHUTDOWN

AND DIMMING

CONTROL

10Ω

3465A F01a

C1, C2: X5R OR X7R DIELECTRIC

L1: MURATA LQH32CN220

LT3465

LT3465A

Figure 1. Li-Ion Powered Driver for Four White LEDs

LED CURRENT (mA)

3465A F01b

3465afa

12 3 4 5 6 7...16

中文翻译

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与LT3465_15相关器件

型号	品牌	获取价格	描述	数据表
LT3465A	Linear	获取价格	Single Cell 350mA LED Driver
LT3465A_15	Linear	获取价格	1.2MHz/2.4MHz White LED Drivers with Built-in Schottky in ThinSOT
LT3465AES6	Linear	获取价格	1.2MHz/2.4MHz White LED Step-Up Converters with Built-In Schottky in ThinSOT
LT3465AES6#TRMPBF	Linear	获取价格	LT3465 - 1.2MHz White LED Step-Up Converters with Built-In Schottky in ThinSOT; Package: S
LT3465ES6	Linear	获取价格	1.2MHz/2.4MHz White LED Step-Up Converters with Built-In Schottky in ThinSOT
LT3465ES6#TRMPBF	Linear	获取价格	LT3465 - 1.2MHz White LED Step-Up Converters with Built-In Schottky in ThinSOT; Package: S
LT3465ES6#TRPBF	Linear	获取价格	LT3465 - 1.2MHz White LED Step-Up Converters with Built-In Schottky in ThinSOT; Package: S
LT3466	Linear	获取价格	Dual Full Function White LED Step-Up Converter with Built-In Schottky Diodes
LT3466	ADI	获取价格	内置肖特基二极管的全功能白光 LED 输出升压型转换器
LT3466-1	Linear	获取价格	20mA LED Driver and OLED Driver with Integrated Schottky in 3mm x 2mm DFN

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