【产品】1.1MHz开关频率恒流LED驱动器,内部集成功率MOSFET缩小PCB布局面积
圣邦微电子(北京)股份有限公司(SGMICRO Corp)是一家专注于高性能、高品质模拟集成电路研发和销售的半导体公司。圣邦微的技术团队由行业的国际资深专家组成,他们拥有先进的模拟集成电路设计能力,丰富的工艺、生产、测试的管理经验及一套完整的可靠性测试流程。
SGM3747是圣邦微电子推出的一款多功能恒流LED驱动器,具有高效率升压转换器架构。该器件内部集成了低端功率MOSFET,大大缩小了整个PCB布局面积,并最大限度地减少了外部元件的总数。独特的技术和高达1.6A的电流限制使SGM3747可以驱动高达38V的输出(串联10个LED)。SGM3747恒流LED驱动器可提供260mA的总电流,每串3个串联LED。它还可以最大化电流能力,同时实现高转换效率。优化的1.1MHz开关频率可降低传导损耗并缩小外部元件尺寸。集成数字PWM调光接口以调节LED电流。 PWM频率范围为2kHz至60kHz。 SGM3747内置各种保护功能,包括逐周期输入电流限制保护,开路LED(输出过压)保护和热关断保护。关断模式下的漏电流小于1μA。 SGM3747恒流LED驱动器采用Green TSOT-23-6封装。它的工作温度范围为-40℃至+ 85℃。
图1 SGM3747引脚图
SGM374恒流LED驱动器特征:
• 宽输出范围:最多10个系列LED
• 集成40V高电流开关(1.6A限制)
• 2.7V至5.5V输入电压范围
• 高效PWM转换器
• 低200mV反馈电压
• CTRL引脚上的500kΩ上拉电阻
• 2kHz至60kHz PWM调光频率
• 38V开路LED保护
• 1.1MHz开关频率
• 集成软启动功能
• 关断电流小于1μA
• 调光稳定在500:1范围内
• 简单,小巧的解决方案尺寸
• 采用绿色TSOT-23-6封装
• -40℃至+ 85℃工作温度范围
SGM374恒流LED驱动器应用:
• LED背光
• 手机
• 手持设备
• 数码相框
• 汽车导航
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本文由summer翻译自SGMICRO,版权归世强硬创平台所有,非经授权,任何媒体、网站或个人不得转载,授权转载时须注明“来源:世强硬创平台”。
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全部评论(3)
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CHLOE Lv4. 资深工程师 2018-10-15不错
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uu Lv3. 高级工程师 2018-09-28性能不错,学习了。
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海绵宝宝 Lv7. 资深专家 2018-08-14缩小面积是主流趋势了
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描述- SGMICRO specializes in high-performance and high-quality analog and mixed-signal integrated circuits, and is committed to building a comprehensive portfolio of the highest quality analog and mixed-signal integrated circuits to address all customer needs.
型号- 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产品型号
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品类
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Grade
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Topology
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Number of Outputs
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Vin (Min.)[V]
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Vin (Max.)[V]
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Per Channel Drive (Max.)[mA]
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Vout (Max.)[V]
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Data Input
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LED Configuration
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Temperature (Min.)[°C]
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Temperature (Max.)[°C]
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Package
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Functional Safety
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Common Standard
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BD18333EUV-M
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LED 驱动器
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Automotive
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Constant Current
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24
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4.5V
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40V
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125mA
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40V
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UART
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24 parallel
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-40°C
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125°C
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HTSSOP-C48
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FS process compliant
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AEC-Q100 (Automotive Grade)
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ROHM(罗姆)LED驱动器选型指南(中文)
描述- 罗姆为市场提供各种LED驱动器,主要用于照明、背光源、闪光光源、显示设备及车载设备。提供各种AC/DC和DC/DC LED驱动器及恒流LED驱动器。
型号- BD8389FV-M,BD9470AFM,BD9394EFV,BD83733HFP-M,BD18364EFV-M,BD83812EFV-M,BD9411F,BD8388FV-M,BD26503KS2,BD9483F,BD2606MVV,BD18326NUF-M,BD81A44MUV-M,BD60A60NUX,BD83A04EFV-M,BD9422EFV,BD18333EUV-M,BD9483FV,BD521GOFJ,BM520Q15F,BD18347AEFV-M,BD83732HFP-M,BD18395EFV-M,BD83740HFP-M,BD65D00MUV,BD60A00NUX,BD18343FV-M,BD18327EFV-M,BD9486F,BD6586MUV,BD18351EFV-M,BM531Q11,BD81A24EFV-M,BD18332EUV-M,BD8374HFP-M,BD2801MUV,BU16501KS2,BD18342FV-M,BD18341FV-M,BD83A24MUF-M,BD94130MUF-M,BD81A24MUV-M,BD94130EFV-M,BD9409F,BD6142AMUV,BD18353EFV-M,BD8381AEFV-M,BD8374EFJ-M,BD18340FV-M,BD9413F,BD83A14EFV-M,BD18398EUV-M,BM521Q25F,BD1604MUV,BD2802GU,BD81A24MUF-M,BD18330EFV-M,BD1754HFN,BD12801MUF-M,BD18362EFV-M,BD18397RUV-M,BD18353MUF-M,BD18337EFV-M,BD65B60GWL,BD18336NUF-M,BD8372HFP-M,BD9408FV,BD94062F,BD18345EFV-M,BD81A76EFV-M,BD82A26MUF-M,BD18397EUV-M,BD7757MWX,BD81A44EFV-M,BD92111F,BD9416FS,BD2812GU,BD9397EFV,BD18398RUV-M,BD6583MUV-A,BD93942F,BD2808MUV-M,BD83A14MUF-M,BD9420F,BD81A74EFV-M,BD83816EFV-M,BD81A74MUV-M,BD18347EFV-M,BD6071HFN,BD82A16MUF-M,BD26503GUL,BD8372UEFJ-M,BD9479FV
具有PWM调光功能的可编程低压差线性恒流LED驱动器INK1101,恒流输出范围5~180mA
INK1101是芯进电子推出的一款LED线性恒流驱动芯片,提供单通道恒定输出电流,电流输出范围从5~120mA,电流数值可以通过外接电阻(RFB)进行设定,输出端可承受最大电压达32V。芯片的工作电压范围为3.3~5.5V。低至0.3V的电流设定电压以及50mV低压差驱动级,使得INK1101能够在宽驱动电压范围内提供稳定的电流输出,极大增强恒流灯条模组的级联能力。
产品 发布时间 : 2024-01-12
AS6541 1200mA Inductance-less Flash LED Drivers with 1-wire Torch Mode And Flash Mode Dimming
型号- AS6541XXXX,AS6541,AS6541DRNC
电子商城
现货市场
服务
可定制变压器电压最高4.5KV,高频30MHz;支持平面变压器、平板变压器、OBC变压器、DCDC变压器、PLC信号变压器、3D电源、电流变压器、反激变压器、直流直流变压器、车载充电器变压器、门极驱动变压器等产品定制。
最小起订量: 100000 提交需求>
测试范围:扬兴晶振全系列晶体,通过对晶体回路匹配分析,调整频率、驱动功率和起振能力,解决频偏、不起振、干扰、频率错误等问题。技术专家免费分析,测完如有问题,会进一步晶振烧录/修改电路。
实验室地址: 深圳 提交需求>
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