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SG1845Y

  • 描述:输出类别: 晶体管驱动器 拓扑结构: Flyback 输出配置: 阳性,可隔离 开关频率: 1赫兹 ~ 500千赫兹 供应商设备包装: 8-CERDIP
  • 品牌: 微芯 (Microchip)
  • 交期:5-7 工作日
渠道:
  • 自营
  • 得捷
  • 贸泽

起订量: 1

  • 库存: 0
  • 单价: ¥23.03242
  • 数量:
    - +
  • 总计: ¥23.03
在线询价

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规格参数

  • 输出类别 晶体管驱动器
  • 输出数量 one
  • 输出阶段 one
  • 同步整流装置 Yes
  • 输出配置 阳性,可隔离
  • 串口 -
  • 时钟同步
  • 安装类别 通孔
  • 电源电压 (Vcc/Vdd) 7.6V ~ 30V
  • 最大占空比 48%
  • 控制功能特性 -
  • 功能 上一步/下一步
  • 工作温度 -55摄氏度~125摄氏度(TA)
  • 拓扑结构 Flyback
  • 制造厂商 微芯 (Microchip)
  • 包装/外壳 8-CDIP (0.300", 7.62毫米)
  • 部件状态 Digi-Key停产
  • 开关频率 1赫兹 ~ 500千赫兹
  • 供应商设备包装 8-CERDIP

SG1845Y 产品详情

The SG1844/45 family of control ICs provides all the required features to implement off-line Fixed Frequency, Current-mode switching power supplies with a minimum number of external components. Current-mode architecture demonstrates improved line regulation, improved load regulation, pulse-by pulse current limiting and inherent protection of the power supply output switch.The Bandgap reference is trimmed to ±1% over temperature. Oscillator discharge current is trimmed to less than ±10%. The SG1844/45 has under-voltage lockout, current-limiting circuitry and start-up current of less than 1mA. The totem-pole output is optimized to drive the gate of a power MOSFET. The output is low in the off state to provide direct interface to an Nchannel device. Both operate up to a maximum duty cycle range of zero to <50% due to an internal toggle flip-flop which blanks the output off every other clock cycle. The SG1844/45 is specified for operation over the full military ambient temperature range of -55°C to 125°C. The SG3844/45 is designed for the commercial range of 0°C to 70°C.

Feature

  • Optimized for Off-Line Control
  • Low Start-Up Current (<1mA)
  • Automatic Feed Forward Compensation
  • Trimmed Oscillator
  • Discharge Current
  • Pulse-By-Pulse Current Limiting
  • Enhanced Load Response Characteristics
  • Undervoltage Lockout with 6V Hysteresis (SG1844 only)
  • Double Pulse Suppression
  • High-Current Totem-Pole Output
  • Internally Trimmed Bandgap Reference
  • 500kHz Operation
  • Under-voltage Lockout: SG1844 - 16 Volts, SG1845 - 8.4 Volts
  • Low Shoot-through Current <75mA Over Temperature
SG1845Y所属分类:DC - DC开关控制器,SG1845Y 由 微芯 (Microchip) 设计生产,可通过久芯网进行购买。SG1845Y价格参考¥23.032422,你可以下载 SG1845Y中文资料、PDF数据手册、Datasheet数据手册功能说明书,可查询SG1845Y规格参数、现货库存、封装信息等信息!

微芯 (Microchip)

微芯 (Microchip)

Microchip Technology Inc.是微控制器和模拟半导体的领先供应商,为全球数千种不同的客户应用程序提供低风险的产品开发、更低的系统总成本和更快的上市时间。Microchip总部位于亚利...

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