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参数资料
| 型号： | MIC3201YME |
| 厂商： | Micrel Inc |
| 文件页数： | 2/16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 |
Micrel, Inc.
Ordering Information (1)
MIC3201
Part Number
MIC3201YME
Marking
MIC3201YME
Junction Temp. Range
-40°C to +125°C
Package
8-Pin ePAD SOIC
Lead Finish
Pb-Free
1. YME is a GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.
Note:
?
Pin Configuration
8-Pin ePAD SOIC (ME)
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 V CC pin supplies the power to the internal circuitry. The VCC in
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. Do not connect to an external load.
Current Sense Input. The CS pin provides the high-side current sense to set the LED current
with an external sense resistor.
Input Power Supply. VIN 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 10μF ceramic
capacitor is recommended to be placed as close as possible to VIN 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 and the voltage has to be
2.0V or higher to enable the current regulator. The output stage is gated by the DIM pin. 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). In the off state, the output drive is placed in a "tri-stated" condition,
where MOSFET is in an “off” or non-conducting state. Do not drive the EN pin above the supply
voltage.
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 Power FET. Power Ground (PGND) is the ground path for the high current
hysteretic mode. 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.
February 2011
2
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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