Datasheet > LM3404_07

LM3404_07

更新时间： 2024-01-25 18:36:57

品牌	Logo	应用领域
美国国家半导体 - NSC		稳压器驱动
页数	文件大小	规格书
24页	546K
描述
1.0A Constant Current Buck Regulator for Driving High Power LEDs

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LM3404_07 数据手册

June 2007

LM3404/04HV

1.0A Constant Current Buck Regulator for Driving High

Power LEDs

General Description

Features

The LM3404/04HV are monolithic switching regulators de-

signed to deliver constant currents to high power LEDs. Ideal

for automotive, industrial, and general lighting applications,

they contain a high-side N-channel MOSFET switch with a

current limit of 1.5A (typical) for step-down (Buck) regulators.

Hysteretic controlled on-time and an external resistor allow

the converter output voltage to adjust as needed to deliver a

constant current to series and series-parallel connected LED

arrays of varying number and type. LED dimming via pulse

width modulation (PWM), broken/open LED protection, low-

power shutdown and thermal shutdown complete the feature

set.

Integrated 1.0A MOSFET

■

V_INRange 6V to 42V (LM3404)

V_INRange 6V to 75V (LM3404HV)

1.2A Output Current Over Temperature

Cycle-by-Cycle Current Limit

No Control Loop Compensation Required

Separate PWM Dimming and Low Power Shutdown

Supports all-ceramic output capacitors and capacitor-less

outputs

Thermal shutdown protection

■

SO-8 Package, PSOP-8 Package

Applications

LED Driver

■

Constant Current Source

Automotive Lighting

General Illumination

Industrial Lighting

■

Typical Application

20205401

202054

www.national.com

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LM3404HVMA	TI	获取价格	LM3404/04HV 1.0A Constant Current Buck Regulator for Driving High Power LEDs
LM3404HVMA/NOPB	TI	获取价格	1.0A Constant Current Buck Regulator for Driving High Power LEDs