可变关断时间控制器

Obsolete

概览

NCP1215A 是一款用于低功耗离线反激开关模式电源 (SMPS) 的控制器,尺寸小、重量轻、成本低,且具有良好的低待机功耗性能。其运行原理为通过增加关断时间来降低轻型负载下的开关频率。另外,当关断时间延长时,峰值电流逐渐降至最大峰值电流的约 1/4,防止激发变压器机械谐振。噪声风险因此得以大幅降低,同时保持良好的待机功耗性能。

  • Auxiliary Power Supply
  • Stand-by Power Supply
  • AC/DC Adapter
  • Off-line Battery Charger

  • Variable OFF Time Control Method
  • Very Low Current Consumption at Start-up
  • Natural Frequency Dithering for Improved EMI Signature
  • Current Mode Control Operation
  • Peak Current Compression Reduces Transformer Noise
  • Programmable Current Sense Resistor Peak Voltage
  • Undervoltage Lockout
  • Pb-Free Packages are Available

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MSL Type

MSL Temp (°C)

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Container Qty.

ON Target

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fsw Typ (kHz)

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UVLO (V)

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Latch

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Obsolete

CAD Model

Pb

A

H

P

TSOP-6

1

260

REEL

3000

N

Flyback

Current Mode

Variable

Yes

Yes

No

No

No

18

30 / 30

Price N/A

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