LM3410

更新时间： 2024-09-15 04:44:27

品牌	Logo	应用领域
美国国家半导体 - NSC		驱动器
页数	文件大小	规格书
6页	172K
描述
525kHz/1.6MHz, Constant Current Boost and SEPIC LED Driver with Internal Compensation

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LM3410 数据手册

ADVANCE INFORMATION

October 2007

LM3410

525kHz/1.6MHz, Constant Current Boost and SEPIC LED

Driver with Internal Compensation

General Description

Features

The LM3410 constant current LED driver is a monolithic, high

frequency, PWM step-up DC/DC converter in 5-pin SOT23,

6-pin LLP, & 8-pin eMSOP packages. With a minimum of ex-

ternal components the LM3410 is easy to use. It can drive

2.5A typical peak currents with an internal 160mΩ NMOS

switch. Switching frequency is internally set to either 525kHz

or 1.60MHz, allowing the use of extremely small surface

mount inductors and chip capacitors. Even though the oper-

ating frequency is high, efficiencies up to 88% are easy to

achieve. External shutdown is included, featuring an ultra-low

stand-by current of 80nA. The LM3410 utilizes current-mode

control and internal compensation to provide high-perfor-

mance over a wide range of operating conditions. Additional

features include dimming, pulse-by-pulse current limit, and

thermal shutdown.

Space Saving SOT23-5 & 6-LLP Package

■

Wide Input voltage range of 2.7V to 5.5V

Wide Output voltage range of 3V to 24V

2.1A switch current over full temperature range

Two High Switching Frequencies Available:

■

525 kHz (LM3410-Y)

1.6 MHz (LM3410-X)

—

160 mΩ NMOS Switch

190 mV Internal Voltage Reference

■

Internal Soft-Start

Current-Mode, PWM Operation

Applications

Portable Illumination

■

LED Backlight Current Source

LiIon Backlight OLED Driver

Handheld Devices

Typical Boost Application Circuit

30038501

300385

www.national.com

12 3 4 5 6

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LM3410XMFE/NOPB	TI	获取价格	具有内部补偿的 525kHz/1.6MHz、恒流升压和 SEPIC LED 驱动器 \| D
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