Voltage References | NCS1002A

恒定电压/恒定电流辅助侧控制器

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NCS1002A 是 NCS1002 的性能升级，其重点是降低需要更高效运行的应用中的功耗。它是一个高度集成方案，适用于需要双控制环路来执行恒定电压 (CV) 和恒定电流 (CC) 调节的开关模式电源 (SMPS) 应用。NCS1002A 集成了 2.5 V 电压参考和两个精确运算放大器。电压参考和运算放大器 1 是电压控制环路的核心。运算放大器 2 是专门为电流控制设计的独立、非定制放大器。完成两个控制回路所需的关键外部组件是：(a) 电阻分压器，用于感应电源（电池充电器）的输出并将电压调节设定点固定在指定值。(b) 感应电阻器，用于将与直流输出电流成比例的电压馈入电流感应电路。此电阻决定电流调节设置点，并且必须在功耗方面进行充分额定。NCS1002A 采用小型 8 引脚 SOIC 封装，适用于电池充电器等空间受限应用。

  • Switch Mode Power Supplies
  • Battery Chargers
  • Low Input Offset Voltage: 0.5 mV, Typ
  • Input Common-Mode Range includes Ground
  • Low Quiescent Current: 75 µA per Op Amp at VCC = 5 V
  • Large Output Voltage Swing
  • Wide Power Supply Range: 3 V to 36 V
  • High ESD Protection: 2 kV

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NCS1002ADR2G

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CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

REEL

2500

Y

Adjustable

2.5

0.4

0.4

0.04

36

-40

105

$0.2419

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