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SG3844DM

  • 描述:启动电压: 16伏 电源电压 (Vcc/Vdd): 10伏~30伏 开关频率: 100赫兹~500千赫兹 供应商设备包装: 8-SOIC 安装类别: 表面安装
  • 品牌:
  • 交期:5-7 工作日
渠道:
  • 自营
  • 得捷
  • 贸泽

起订量: 1

  • 库存: 0
  • 单价: ¥11.58164
  • 数量:
    - +
  • 总计: ¥11.58
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规格参数

  • 输出隔离 孤立的
  • 内部开关
  • 击穿电压 -
  • 功率(瓦特) -
  • 安装类别 表面安装
  • 拓扑结构 -
  • 控制功能特性 频率控制
  • 故障保护 限流
  • 包装/外壳 8-SOIC (0.154", 3.90毫米 Width)
  • 供应商设备包装 8-SOIC
  • 启动电压 16伏
  • 工作温度 0摄氏度~70摄氏度(TA)
  • 占空比重 48%
  • 电源电压 (Vcc/Vdd) 10伏~30伏
  • 部件状态 Digi-Key停产
  • 开关频率 100赫兹~500千赫兹
  • 制造厂商

SG3844DM 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
SG3844DM所属分类:交直流转换器/离线转换开关,SG3844DM 由 设计生产,可通过久芯网进行购买。SG3844DM价格参考¥11.581636,你可以下载 SG3844DM中文资料、PDF数据手册、Datasheet数据手册功能说明书,可查询SG3844DM规格参数、现货库存、封装信息等信息!
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