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| 型号： | MIC4812YMME |
| 厂商： | Micrel Inc |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC WHITE LED DVR HC 6CH 10MSOP |
| 标准包装： | 100 |
| 恒定电流： | 是 |
| 拓扑： | 线性（LDO），PWM |
| 输出数： | 6 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 通用 |
| 类型 - 次要： | 白色 LED |
| 电源电压： | 3 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 供应商设备封装： | 10-MSOP 裸露焊盘 |
| 包装： | 管件 |
| 其它名称： | 576-3859-5 |
MIC4812
High Current 6 Channel Linear WLED
Driver with DAM? and Ultra Fast
PWM? Control
General Description
The MIC4812 is a high efficiency linear White LED
(WLED) driver designed to drive up to six high current
WLEDs for signage lighting. The MIC4812 provides the
highest possible efficiency as this architecture has no
switching losses present in traditional charge pumps or
inductive boost circuits. The MIC4812 provides six linear
drivers which maintain constant current for up to six
WLEDs. It features a typical dropout of 190mV at 100mA.
The MIC4812 features Dynamic Average Matching?
(DAM?) which is specifically designed to provide optimum
matching across all WLEDs. The high accuracy (±1%
typical) current regulated WLED channels ensure uniform
display illumination under all conditions. The brightness is
controlled through an Ultra Fast PWM? interface
operating down to less than 1% duty cycle.
The MIC4812 is available in an 10-pin MSOP ePad
package with a junction temperature range of -40 ° C to
+125 ° C.
Datasheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
? High Efficiency (no Voltage Boost losses)
? Ultra Fast PWM? control (200Hz to 500kHz)
? Input voltage range: 3.0V to 5.5V
? LED current range up to 100mA per channel
? Programmable LED current with external resistor
? Dropout of 190mV at 100mA
? Matching better than ±1% (typical)
? Current Accuracy better than ±1% (typical)
? Maintains proper regulation regardless of how many
channels are utilized
? 10-pin MSOP with ePad package
Applications
? Billboard displays
? Marquee displays
? Instrument displays
? LCD display modules
____________________________________________________________________________________________________________
Typical Application
High Current Lighting (Six WLEDs)
Ultra Fast PWM, DAM and Dynamic Average Matching are trademark of Micrel, Inc.
Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 ( 408 ) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
April 2011
M9999-041911-B
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC4812YMME TR | 功能描述:LED照明驱动器 High Current Six Channel WLED Driver w/ DAM and Ultrafast PWM Control 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 |
| MIC4826 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Low Input Voltage, 160VPP Output Voltage, EL Driver |
| MIC4826_09 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Low Input Voltage, 160VPP Output Voltage, EL Driver |
| MIC4826BMM | 功能描述:IC EL DRIVER 160VPP OUT 8-MSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 照明，镇流器控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:CCFL 控制器 频率:40 ~ 80 kHz 电流 - 电源:5mA 电流 - 输出:- 电源电压:4.5 V ~ 5.5 V 工作温度:-40°C ~ 85°C 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) 其它名称:90-3991V+V01 |
| MIC4826BMM TR | 功能描述:IC DRIVER EL DC-AC 160VPP 8MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 照明，镇流器控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:CCFL 控制器 频率:40 ~ 80 kHz 电流 - 电源:5mA 电流 - 输出:- 电源电压:4.5 V ~ 5.5 V 工作温度:-40°C ~ 85°C 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) 其它名称:90-3991V+V01 |
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