NCP431: Voltage Reference, Low Cathode Current, Programmable, Shunt Regulator

具体说明: The NCP431 integrated circuits are three-terminal ...
  • The NCP431 integrated circuits are three-terminal programmable shunt regulator diodes. They are a direct upgrade to the industry standard TL431A. These monolithic IC voltage references operate as a low temperature coefficient zener which is programmable from Vref to 36 V using two external resistors. These devices exhibit a wide operating current range of 40 µA to 100 mA with a typical dynamic impedance of 0.22Ω. The characteristics of these references make them excellent replacements for zener diodes in many applications such as digital voltmeters, power supplies, and op amp circuitry. The 2.5 V reference makes it convenient to obtain a stable reference from 5.0 V logic supplies, and since the NCP431 operates as a shunt regulator, it can be used as either a positive or negative voltage reference. Low minimum operating current makes this device an ideal choise for secondary regulators in SMPS adapters with extremely low no-load consumption.

    The NCP432 has exactly the same functionality and electrical specifications as the NCP431, but has an alternate pin configuration.
  • 特性
  • Low Minimum Operating Current: 40 uA, Typ @ 25C - Reduced power consumption
  • Voltage Reference Tolerance: 1%, Typ @ 25C - Accurate Reference Voltage
  • Programmable Output Voltage to 36 V - Allows for use in a broad range of applications
  • Low Dynamic Output Impedance, 0.22ohm Typical - High and stable gain even at very low cathode current operation
  • Temperature Compensated for Operation over Full Rated Operating
    Temperature Range - Accurate and reliable operation over the temperature range
  • Equivalent FullRange Temperature Coefficient of 50 ppm/C
    Typical - Accurate reference across temperature
  • NCP431 is pin compatible to the TL432 - Easily upgrade performance with no board level change
  • NCP432 is pin compatible to the TL431 - Alternate pin configuration
  • 应用
  • Switchmode Power Supplies
  • Instrumentation
  • 终端产品
  • Adapters
  • Flat TVs
  • 技术文档及设计资源
    评估/开发工具信息
    产品更改通知
    供货情况和样品
    NCP431ACDR2G
  • 状况: Active
  • Compliance: Pb-free Halide free 
  • 具体说明: Voltage Reference, Low Cathode Current, Programmable, Shunt Regulator, 0°C to 70°C
  • 封装 类型: SOIC-8
  • 封装 外形: 751-07
  • MSL: 1
  • 容器 类型: REEL
  • 容器 数量: 2500
  • 库存

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Digikey:>1K
  • Newark:>1K
  • Newark:>1K
  • ON Semiconductor:15,000
  • NCP431ACLPRAG
  • 状况: Active
  • Compliance: Pb-free Halide free 
  • 具体说明: Voltage Reference, Low Cathode Current, Programmable, Shunt Regulator, 0°C to 70°C
  • 封装 类型: TO-92
  • 封装 外形: 29-11
  • MSL: NA
  • 容器 类型: REEL
  • 容器 数量: 2000
  • 库存

  • Market Leadtime (weeks):Contact Factory
  • Arrow:0
  • Digikey:>1K
  • Newark:>1K
  • NCP431ACSNT1G
  • 状况: Active
  • Compliance: Pb-free Halide free 
  • 具体说明: Voltage Reference, Low Cathode Current, Programmable, Shunt Regulator, 0°C to 70°C
  • 封装 类型: SOT-23-3
  • 封装 外形: 318-08
  • MSL: 1
  • 容器 类型: REEL
  • 容器 数量: 3000
  • 库存

  • Market Leadtime (weeks):Contact Factory
  • Arrow:0
  • Digikey:>10K
  • Newark:>1K
  • NCP431AIDR2G
  • 状况: Active
  • Compliance: Pb-free Halide free 
  • 具体说明: Voltage Reference, Low Cathode Current, Programmable, Shunt Regulator, −40°C to 85°C
  • 封装 类型: SOIC-8
  • 封装 外形: 751-07
  • MSL: 1
  • 容器 类型: REEL
  • 容器 数量: 2500
  • 库存

  • Market Leadtime (weeks):Contact Factory
  • Arrow:0
  • Avnet:>1K
  • Digikey:>1K
  • NCP431AILPRAG
  • 状况: Active
  • Compliance: Pb-free Halide free 
  • 具体说明: Voltage Reference, Low Cathode Current, Programmable, Shunt Regulator, −40°C to 85°C
  • 封装 类型: TO-92
  • 封装 外形: 29-11
  • MSL: NA
  • 容器 类型: REEL
  • 容器 数量: 2000
  • 库存

  • Market Leadtime (weeks):4 to 8
  • Arrow:0
  • Digikey:>1K
  • ON Semiconductor:2,000
  • NCP431AISNT1G
  • 状况: Active
  • Compliance: Pb-free Halide free 
  • 具体说明: Voltage Reference, Low Cathode Current, Programmable, Shunt Regulator, ?40�C to 85�C
  • 封装 类型: SOT-23-3
  • 封装 外形: 318-08
  • MSL: 1
  • 容器 类型: REEL
  • 容器 数量: 3000
  • 库存

  • Market Leadtime (weeks):Contact Factory
  • Arrow:0
  • Digikey:>1K
  • Newark:>1K
  • NCP431AVDR2G
  • 状况: Active
  • Compliance: Pb-free Halide free 
  • 具体说明: Voltage Reference, Low Cathode Current, Programmable, Shunt Regulator, −40°C to 125°C
  • 封装 类型: SOIC-8
  • 封装 外形: 751-07
  • MSL: 1
  • 容器 类型: REEL
  • 容器 数量: 2500
  • 库存

  • Market Leadtime (weeks):13 to 16
  • Arrow:0
  • Digikey:>1K
  • ON Semiconductor:10,000
  • NCP431AVLPG
  • 状况: Active
  • Compliance: Pb-free Halide free 
  • 具体说明: Voltage Reference, Low Cathode Current, Programmable, Shunt Regulator
  • 封装 类型: TO-92
  • 封装 外形: 29-11
  • MSL: NA
  • 容器 类型: BLKBG
  • 容器 数量: 2000
  • 库存

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Digikey:>1K
  • ON Semiconductor:16,000
  • NCP431AVLPRAG
  • 状况: Active
  • Compliance: Pb-free Halide free 
  • 具体说明: Voltage Reference, Low Cathode Current, Programmable, Shunt Regulator, −40°C to 125°C
  • 封装 类型: TO-92
  • 封装 外形: 29-11
  • MSL: NA
  • 容器 类型: REEL
  • 容器 数量: 2000
  • 库存

  • Market Leadtime (weeks):4 to 8
  • Arrow:0
  • Digikey:>1K
  • NCP431AVSNT1G
  • 状况: Active
  • Compliance: Pb-free Halide free 
  • 具体说明: Voltage Reference, Low Cathode Current, Programmable, Shunt Regulator
  • 封装 类型: SOT-23-3
  • 封装 外形: 318-08
  • MSL: 1
  • 容器 类型: REEL
  • 容器 数量: 3000
  • 库存

  • Market Leadtime (weeks):Contact Factory
  • Arrow:0
  • Digikey:>1K
  • FutureElectronics:>1K
  • Newark:<1K
  • NCP431BCSNT1G
  • 状况: Active
  • Compliance: Pb-free Halide free 
  • 具体说明: Voltage Reference, Low Cathode Current, Programmable, Shunt Regulator, 0°C to 70°C
  • 封装 类型: SOT-23-3
  • 封装 外形: 318-08
  • MSL: 1
  • 容器 类型: REEL
  • 容器 数量: 3000
  • 库存

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Digikey:>1K
  • ON Semiconductor:15,000
  • NCP431BISNT1G
  • 状况: Active
  • Compliance: Pb-free Halide free 
  • 具体说明: Voltage Reference, Low Cathode Current, Programmable, Shunt Regulator, −40°C to 85°C
  • 封装 类型: SOT-23-3
  • 封装 外形: 318-08
  • MSL: 1
  • 容器 类型: REEL
  • 容器 数量: 3000
  • 库存

  • Market Leadtime (weeks):Contact Factory
  • Arrow:0
  • Digikey:<1K
  • Newark:>1K
  • NCP431BVSNT1G
  • 状况: Active
  • Compliance: Pb-free Halide free 
  • 具体说明: Voltage Reference, Low Cathode Current, Programmable, Shunt Regulator, −40°C to 125°C
  • 封装 类型: SOT-23-3
  • 封装 外形: 318-08
  • MSL: 1
  • 容器 类型: REEL
  • 容器 数量: 3000
  • 库存

  • Market Leadtime (weeks):Contact Factory
  • Arrow:0
  • Newark:>1K
  • NCP432BCSNT1G
  • 状况: Active
  • Compliance: Pb-free Halide free 
  • 具体说明: Voltage Reference, Low Cathode Current, Programmable, Shunt Regulator
  • 封装 类型: SOT-23-3
  • 封装 外形: 318-08
  • MSL: 1
  • 容器 类型: REEL
  • 容器 数量: 3000
  • 库存

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Digikey:>1K
  • ON Semiconductor:57,000
  • NCP432BISNT1G
  • 状况: Active
  • Compliance: Pb-free Halide free 
  • 具体说明: Voltage Reference, Low Cathode Current, Programmable, Shunt Regulator
  • 封装 类型: SOT-23-3
  • 封装 外形: 318-08
  • MSL: 1
  • 容器 类型: REEL
  • 容器 数量: 3000
  • NCP432BVSNT1G
  • 状况: Active
  • Compliance: Pb-free Halide free 
  • 具体说明: Voltage Reference, Low Cathode Current, Programmable, Shunt Regulator
  • 封装 类型: SOT-23-3
  • 封装 外形: 318-08
  • MSL: 1
  • 容器 类型: REEL
  • 容器 数量: 3000
  • 库存

  • Market Leadtime (weeks):Contact Factory
  • Arrow:0
  • Newark:>1K
  • SC431AVSNT1G
  • 状况: Active
  • Compliance: AEC Qualified PPAP Capable Pb-free Halide free 
  • 具体说明: Voltage Reference, Low Cathode Current, Programmable, Shunt Regulator
  • 封装 类型: SOT-23-3
  • 封装 外形: 318-08
  • MSL: 1
  • 容器 类型: REEL
  • 容器 数量: 3000
  • 库存

  • Market Leadtime (weeks):Contact Factory
  • Arrow:0
  • Digikey:>1K
  • Newark:>1K
  • SC431BVSNT1G
  • 状况: Active
  • Compliance: AEC Qualified PPAP Capable Pb-free Halide free 
  • 具体说明: Voltage Reference, Low Cathode Current, Programmable, Shunt Regulator
  • 封装 类型: SOT-23-3
  • 封装 外形: 318-08
  • MSL: 1
  • 容器 类型: REEL
  • 容器 数量: 3000
  • SC432BVSNT1G
  • 状况: Active
  • Compliance: AEC Qualified PPAP Capable Pb-free Halide free 
  • 具体说明: Voltage Reference, Low Cathode Current, Programmable, Shunt Regulator
  • 封装 类型: SOT-23-3
  • 封装 外形: 318-08
  • MSL: 1
  • 容器 类型: REEL
  • 容器 数量: 3000
  • 封装
    应用
    Specifications
  • Type: Adjustable 
  • V(BR) Typ (V): 2.5 
  • Tolerance (%): 0.5 
  • IQ Typ (mA): 0.04 
  • IR Min (mA): 0.04 
  • VF Max (V): 36 
  • TA Min (°C): -40 
  • TA Max (°C): 70  85  125 
  • Package Type: SOIC-8  TO-92  SOT-23-3 
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