Controllers | NCP1566

高度集成的双模式有源箝位 PWM 控制器

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NCP1566 是一款高度集成的双模式有源箝位 PWM 控制器，用于电信和数据通信行业使用的下一代高密度、高性能和中小功率级隔离 DC-DC 转换器。它可以配置为带输入电压前馈的电压模式控制，也可配置为峰值电流模式控制。峰值电流模式控制也可实施输入电压前馈。可调节自适应重叠时间基于输入电压和负载条件优化系统能效。此控制器集成了实施隔离有源箝位正向和不对称半桥转换器所需的所有必要控制和保护功能。它集成了高电压启动偏置稳压器。NCP1566 具有线路欠电压检测器、按周期电流限制、线路电压相关最大占空比限制、过电压保护，以及使用外部温控器进行的可编程高温保护。它还包括了用于故障条件下通信 以及控制器关断的双功能引脚。专用的双功能同步引脚简化了将功能块进行关联时的运行。

  • High Efficiency Isolated dc−dc Converters
  • 24 V and 48 V Telecom systems
  • Server Power Supplies
  • 48 V Automotive Applications
  • Telecom Converters
  • High power Servers
  • Audio PA converters
  • Both Voltage Mode Control and Current Mode Control
  • Line feedforward
  • Adaptive Overlap time Control
  • Integrated 120 V HV Startup
  • Programmable Line Undervoltage Lockout (UVLO) with Adjustable Hysteresis
  • Cycle by Cycle Peak Current Limiting
  • Adjustable Over Power Protection & Overcurrent Protection Based on Average Current
  • Programmable Duty Ratio Clamp
  • Programmable Soft-Start
  • Programmable Shutdown and Restart Delays
  • Programmable External Overtemperature Protection Using Thermistor
  • FLT/SD pin Used for Fault reporting and Shutdown Input
  • Programmable Oscillator with a 1-MHz Maximum Frequency and Synchronization Capability.
  • Over Voltage Protection through a dedicated pin
  • Main Switch Drive Capability of -2 A/3 A
  • Active Clamp Switch Drive Capability of -2 A/1 A
  • Vcc Range: from 6.5 V to 20 V
  • 5 V/2% Voltage Reference

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NCP1566MNTXG

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Active

CAD Model

Pb

A

H

P

QFN-24

485CW

1

260

REEL

4000

Y

Forward

1

Current/Voltage Mode

6.5

120

Programmable up to 1 MHz

$1.4838

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