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参数资料
| 型号： | SP7648EB |
| 厂商： | Exar Corporation |
| 文件页数： | 10/13页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR SP7648 |
| 标准包装： | 1 |
| 系列： | * |
S P 7 6 4 8
L o w R e f e r e n c e H i g h E f f i c i e n c y B o o s t R e g u l a t o r
feedback pin voltage will go to ZeroV and the
output voltage will go to 5V which will protect
the part from overvoltage at the output.
One approach to control LED brightness is to
apply a PWM signal to the SHDN input of the
SP7648. In this case, the output current will
be equal to the product of V REF /R1 and the
average duty cycle at the SHDN pin. An
optional 10K ? potentiometer may also be
used for dimming the LED current by varying
the potentiometer between low brightness and
full brightness.
If the FB pin is pulled below 150mV the output
will default to 5V defined by an internal
resistor divider.
? 2012 Exar Corporation
10/13
Rev. 2.0.0
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SP7648ER | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Low Reference High Efficiency Boost Regulator |
| SP7648ER/TR | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:PackageLow Reference High efficiency Boost Regulator |
| SP7648ER-L | 功能描述:LED照明驱动器 Efficiency Boost Regulator 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 |
| SP7648ER-L/TR | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| SP7648EU | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Evaluation Board Manual |
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