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| 型号： | MIC3202YME |
| 厂商： | Micrel Inc |
| 文件页数： | 1/19页 |
| 文件大小： | 0K |
| 描述： | IC LED DVR HB 37V 1A 8-SOIC |
| 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 ~ 37 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 |
| 其它名称： | 576-3760-5 |
MIC3202/MIC3202-1
High-Brightness LED Driver with
Integrated MOSFET and High-Side
Current Sense
General Description
Features
The MIC3202 is a hysteretic, step-down, constant-current,
High-Brightness LED (HB LED) driver. It provides an ideal
solution for interior/exterior lighting, architectural and
ambient lighting, LED bulbs, and other general illumination
applications.
The MIC3202 is well suited for lighting applications
requiring a wide-input voltage range. 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.
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6V to 37V input voltage range
High efficiency ( > 90%)
± 5% LED current accuracy
MIC3202: Dither enabled for low EMI
MIC3202-1: Dither disabled
High-side current sense (up to 1A)
Dedicated dimming control input
Hysteretic control (no compensation required)
Up to 1MHz switching frequency
Adjustable constant LED current
The MIC3202 offers a dedicated PWM input (DIM) which
enables a wide range of pulsed dimming. High-frequency
switching operation of up to 1MHz allows the use of
smaller external components, minimizing space and cost.
The MIC3202 offers a frequency dither feature for low-EMI
applications.
The MIC3202 operates over a junction temperature from
? 40 ° C to + 125 ° C and is available in an 8-pin e-PAD SOIC
package.
? Over-temperature protection
? ? 40 ° C to + 125 ° C junction temperature range
Applications
? Architectural, industrial, and ambient lighting
? LED bulbs
? Indicators and emergency lighting
? Street lighting
A dither disabled version MIC3202-1 is also available in
the same package as the MIC3202.
Datasheets and support documentation can be found on
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Channel letters
12V lighting systems (MR-16 bulbs, under-cabinet
lighting, garden/pathway lighting)
Micrel’s web site at: www.micrel.com .
_________________________________________________________________________________________________________________________
Typical Application
Efficiency
vs. Input Voltage
100
95
90
85
80
2LED
I LED = 1A
L = 47uH
4LED
6LED
8LED
6
14
22
30
38
INPUT VOLTAGE (V)
MIC3202 Step-Down LED Driver
Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
Septembe r 2010
M9999-091710-A
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC3202YME EV | 功能描述:LED 照明开发工具 37V/ 1A HBLED Driver with High-Side Current Sense - Evaluation Board RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装: |
| MIC3202YME TR | 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 |
| MIC3203 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:High-Brightness LED Driver Controller with High-Side Current Sense |
| MIC3203-1YM | 功能描述:LED照明驱动器 HBLED Driver Controller 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 |
| MIC3203-1YM EV | 功能描述:LED 照明开发工具 HBLED Driver Controller with High-Side Current Sense - Evaluation Board RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装: |
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