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| 型号： | MIC3201YME |
| 厂商： | Micrel Inc |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER 8ESOIC |
| 特色产品： | MIC3201 High Brightness LED Driver |
| 标准包装： | 95 |
| 恒定电流： | 是 |
| 拓扑： | PWM，降压（降压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 通用 |
| 类型 - 次要： | 高亮度 LED（HBLED） |
| 频率： | 1MHz |
| 电源电压： | 6 V ~ 20 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm Width）裸露焊盘 |
| 供应商设备封装： | 8-SOIC-EP |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 85°C |
| 其它名称： | 576-3659-5 MIC3201YME-ND |
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.
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.
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.
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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
Over temperature protection
–40°C to +125°C junction temperature range
Available in an 8-Pin ePAD SOIC package
The MIC3201 operates over a junction temperature range
of -40°C to +125°C and is available in an 8-pin ePAD
SOIC package.
Datasheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Applications
? Architectural, industrial, and ambient lighting
? LED bulbs
? Indicators and emergency lighting
? Street lighting
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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
February 2011
M9999-021011-B
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC3201YME EV | 制造商:Micrel Inc 功能描述: |
| MIC3201YME TR | 功能描述:LED照明驱动器 HBLED Driver with High-Side Current Sense RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MIC3202 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:High-Brightness LED Driver with Integrated MOSFET and High-Side Current Sense |
| MIC3202-1 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:High-Brightness LED Driver with Integrated MOSFET and High-Side Current Sense |
| MIC3202-1YME | 功能描述:LED照明驱动器 37V/ 1A HBLED Driver with High-Side Current Sense RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
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