MIC3201

更新时间： 2024-11-20 07:16:59

品牌	Logo	应用领域
麦瑞 - MICREL		驱动器
页数	文件大小	规格书
16页	667K
描述
High Brightness LED Driver with High-Side Current Sense

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MIC3201 数据手册

MIC3201

High Brightness LED Driver with

High-Side Current Sense

General Description

Features

The MIC3201 is a hysteretic step-down, constant-current,

High-Brightness LED (HB LED) driver capable of driving

up to four, 1A LEDs. It provides an ideal solution for

interior/exterior lighting, architectural and ambient lighting,

LED bulbs, and other general illumination applications.

• 6.0V to 20V input voltage range

• High efficiency (>90%)

• ± 5% LED current accuracy

• High-side current sense

• Dedicated dimming control input

• Hysteretic control (no compensation!)

• 1A internal power switch

• Up to 1MHz switching frequency

• Adjustable constant LED current

• 5V on board regulator

The MIC3201 operates with an input voltage range from

6V to 20V. The hysteretic control gives good supply

rejection and fast response during load transients and

PWM dimming. The high-side current sensing and on-chip

current sense amplifier delivers LED current with ±5%

accuracy. An external high-side current sense resistor is

used to set the output current.

• Over temperature protection

• –40°C to +125°C junction temperature range

• Available in an 8-Pin ePAD SOIC package

The MIC3201 offers a dedicated PWM input (DIM) which

enables a wide range of pulsed dimming. A high switching

frequency operation up to 1MHz allows the use of smaller

external components minimizing space and cost.

The MIC3201 operates over a junction temperature range

of -40°C to +125°C and is available in an 8-pin ePAD

SOIC package.

Applications

• Architectural, industrial, and ambient lighting

• LED bulbs

• Indicators and emergency lighting

• Street lighting

Datasheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

• Channel letters

• 12V lighting systems (MR-16 bulbs, under cabinet

lighting, garden/pathway lighting)

_________________________________________________________________________________________________________________________

Typical Application

MIC3201 Step-down LED Driver Circuit

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

M9999-021011-B

February 2011

12 3 4 5 6 7...16

中文翻译

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与MIC3201相关器件

型号	品牌	获取价格	描述	数据表
MIC3201_11	MICREL	获取价格	High Brightness LED Driver with High-Side Current Sense
MIC3201YME	MICREL	获取价格	High Brightness LED Driver with High-Side Current Sense
MIC3201YMETR	MICREL	获取价格	暂无描述
MIC3201YME-TR	MICROCHIP	获取价格	LED DISPLAY DRIVER
MIC3202	MICREL	获取价格	High-Brightness LED Driver with Integrated MOSFET and High-Side Current Sense
MIC3202	MICROCHIP	获取价格	The MIC3202 is a hysteretic, step-down, constant-current, High-Brightness LED (HB LED) dri
MIC3202-1	MICREL	获取价格	High-Brightness LED Driver with Integrated MOSFET and High-Side Current Sense
MIC3202-1	MICROCHIP	获取价格	The MIC3202 is a hysteretic, step-down, constant-current, High-Brightness LED (HB LED) dri
MIC3202-1YME	MICREL	获取价格	High-Brightness LED Driver with Integrated MOSFET and High-Side Current Sense
MIC3202-1YME	MICROCHIP	获取价格	LED DISPLAY DRIVER, PDSO8

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