Offline Regulators | FSQ500L

频率为 130 kHz 且无偏置绕组的 700 V 集成电源开关，用于 2.5 W 离线反激式转换器

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概览

FSQ500L专门设计用于替代低成本线性电源。该器件将电流模式脉宽调制器(PWM)与SenseFET整合在一起。集成的PWM控制器特性包括：固定振荡器、欠压闭锁(UVLO)保护、过载保护(OLP)、前沿消隐(LEB)、优化的栅极接通/关断驱动器、带滞后功能的热关断(TSD)保护和用于环路补偿的温度补偿精密电流源。与线性电源相比，FSQ500L器件的整体大小和重量都有所下降，同时其效率、生产力和系统可靠性得以增强。此器件提供了一个适合经济高效的反激式转换器的基础平台

  • DVD机
  • STB
  • 视频游戏机
  • 消费型设备
  • 单芯片 700 V SenseFET 功率开关
  • 精确的固定工作频率：130kHz
  • 突发模式下，265VAC时，空载功耗为250mW，通过外部偏压可降低至60mW
  • 内部启动开关
  • 由外部电容器调节的软启动时间
  • 具有滞后的欠压闭锁(UVLO)
  • 逐脉冲限流
  • 过载保护(OLP)、带有滞后的内部热关断功能(TSD)
  • 自动重启模式
  • 无需辅助偏压线圈

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Case Outline

MSL Type

MSL Temp (°C)

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ON Target

Control Mode

fsw Typ (kHz)

fJitter Typ (%)

Stand-by Mode

RDS(ON) Typ (Ω)

V(BR)DSS Max (V)

IPeak (mA)

HV Start-up Min (V)

DSS (mA)

UVLO

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Over Power Compensation

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FSQ500L

Active

Pb

A

H

P

SOT-223-4 / TO-261-4

318H-01

1

260

REEL

4000

Y

Current Mode

130

-

-

25

700

280

Yes

-

Yes

Yes

-

-

No

$0.4591

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