Offline Regulators | FSQ510

包含谷底开关控制的 700 V 集成电源开关，用于 6 W 离线反激式转换器

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概览

谷底开关转换器 (VSC) 总体上呈现出比开关频率固定的传统硬开关转换器更低的 EMI 和更高的功率转换效率。FSQ510（H 或 M）是一款集成式谷底开关脉宽调制 (VS-PWM) 控制器和SenseFET，专为进行谷底开关的离线开关电源 (SMPS) 而设计，只需最少的外部元件。VS-PWM 控制器包括一个集成式振荡器、欠压闭锁 (UVLO)、前沿消隐 (LEB)、优化的栅极驱动器、内部软启动、用于环路补偿的温度补偿式精密电流源，以及自我保护电路。与分立式 MOSFET 和 PWM 控制器解决方案相比，FSQ510（H 或 M）既可减少总成本、元件数量、尺寸和重量，同时又能提高效率、生产力和系统可靠性。该器件提供了一个平台，适合设计高性价比的谷底开关反激式转换器。

  • LCD 电视
  • 使用 LDMOS 集成电源开关
  • 针对谷底开关转换器进行了优化 (VSC)
  • 通过变频控制和固有频率调制实现低 EMI
  • 通过最低漏电压开关实现高效率
  • 通过扩展谷底开关实现较宽的负载范围
  • 通过小频率变化实现较宽的负载范围
  • 通过先进的间歇模式运行实现低待机功耗
  • 逐脉冲限流
  • 保护功能：过载保护 (OLP)、带滞后的内部热关断 (TSD)
  • 带滞后的欠压闭锁 (UVLO)
  • 内部启动电路
  • 内部高压 SenseFET：700V
  • 内置软启动：5 ms

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FSQ510

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CAD Model

Pb

A

H

P

PDIP-7

626A-01

NA

0

TUBE

3000

N

Current Mode

Variable

-

-

28

700

320

Yes

-

Yes

Yes

-

-

No

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FSQ510MX

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Last Shipments

CAD Model

Pb

A

H

P

PDIP7 MINUS PIN 6 GW

707AA

3

250

REEL

1000

N

Current Mode

Variable

-

-

28

700

320

Yes

-

Yes

Yes

-

-

No

Price N/A

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