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| 型号： | MIC3202YME |
| 厂商： | Micrel Inc |
| 文件页数： | 2/19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 |
Micrel, Inc.
Ordering Information (1)
MIC3202/MIC3202-1
Part Number
MIC3202YME
MIC3202-1YME
Marking
MIC3202YME
MIC3202-1YME
Junction Temperature Range
? 40°C to + 125°C
? 40°C to + 125°C
Package
8-Pin SOIC
8-Pin SOIC
PWM
Dither
Non-Dither
Note:
YM is a GREEN RoHS-compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.
1.
?
Pin Configuration
8-Pin ePAD SOIC
MIC3202/MIC3202-1
Pin Description
Pin
Number
1
2
3
4
5
6
7
8
EP
Pin Name
VCC
CS
VIN
AGND
EN
DIM
PGND
LX
GND
Pin Function
Voltage Regulator Output. The VCC pin supplies the power to the internal circuitry. The VCC is the output
of a linear regulator which is powered from VIN. A 1μF ceramic capacitor is recommended for bypassing
and should be placed as close as possible to the VCC and AGND pins.
Current-Sense Input. The CS pin provides the high-side current sense to set the LED current using an
external sense resistor.
Input Power Supply. The VIN pin is the input supply pin to the internal circuitry and the positive input to
the current sense comparator. Due to the high frequency switching noise, a 1μF ceramic capacitor is
recommended to be placed as close as possible to VIN pin and the power ground (PGND) pin for
bypassing. Please refer to layout recommendations.
Ground pin for analog circuitry. Internal signal ground for all low power sections.
Enable Input. The EN pin provides a logic level control of the output. The voltage has to be 2.0V or higher
to enable the current regulator. The output stage is also gated by the DIM input. When the EN pin is
pulled low, the regulator goes to off state and the supply current of the device is greatly reduced (below
1μA).
PWM Dimming Input. The DIM pin provides the control for brightness of the LED. A PWM input can be
used to control the brightness of LED. DIM high enables the output and its voltage has to be at least 2.0V
or higher. DIM low disables the output, regardless of EN “high” state.
Power Ground pin for Internal Power FET. Power Ground (PGND) is the ground path for the high current.
The current loop for the power ground should be as small as possible and separate from the Analog
ground (AGND) loop. Refer to the layout considerations for more details.
Drain of Internal Power MOSFET. The LX pin connects directly to the inductor and provides the switching
current necessary to operate in hysteretic mode. Due to the high frequency switching and high voltage
associated with this pin, the switch node should be routed away from sensitive nodes.
Connect to PGND.
September 2010
2
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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