紧凑型功率因数校正控制器

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概览

MC33260 是一款用于功率因数校正预转换器的控制器,可满足电子镇流器和离线功率转换应用中的国际标准要求。其设计用于驱动自由频率续流模式,也可对其进行同步,并且在任何情况下都具有非常有效的保护功能,可确保安全可靠运行。该电路还经过优化,可提供非常紧凑且经济高效的 PFC 方案。MC33260 虽然需要最少的外部部件数量,但可以控制跟踪增压运行,该创新模式可大大减小电感器和电源开关的尺寸。最终可大大降低方案系统的成本。此外,由于它能够以传统方式运行(恒定的输出电压调节电平),任何中间方案都可以轻松实施。这一灵活性使其非常适合用于应对各种应用。

  • Standard Constant Output Voltage or "Follower Boost" Mode
  • Switch Mode Operation: Voltage Mode
  • Latching PWM for Cycle-by-Cycle On-Time Control
  • Constant On-Time Operation That Saves the Use of an Extra Multiplier
  • Totem Pole Output Gate Drive
  • Undervoltage Lockout with Hysteresis
  • Low Start-Up and Operating Current
  • Improved Regulation Block Dynamic Behavior
  • Synchronization Capability
  • Internally Trimmed Reference Current Source
  • Overvoltage Protection: Output Overvoltage Detection
  • Undervoltage Protection: Protection Against Open Loop
  • Effective Zero Current Detection
  • Accurate and Adjustable Maximum On-Time Limitation
  • Overcurrent Protection
  • ESD Protection on Each Pin

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状态

CAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

PFC Mode

Frequency Operation

Control Mode

Topology

fSW Typ (kHz)

VCC Max (V)

Drive Cap. (mA)

UVLO (V)

Latch

UVP

Inhibition

Reference Price

MC33260DG

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Obsolete

CAD Model

Pb

A

H

P

SOIC-8

1

260

TUBE

98

N

CRM

Variable

Voltage Mode

Step-Up

Variable

16

500 / 500

8.5 - 11

Yes

Fixed

Yes

Price N/A

More Details

MC33260DR2G

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Obsolete

CAD Model

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

CRM

Variable

Voltage Mode

Step-Up

Variable

16

500 / 500

8.5 - 11

Yes

Fixed

Yes

Price N/A

More Details

MC33260PG

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Obsolete

CAD Model

Pb

A

H

P

PDIP-8

NA

0

TUBE

50

N

CRM

Variable

Voltage Mode

Step-Up

Variable

16

500 / 500

8.5 - 11

Yes

Fixed

Yes

Price N/A

More Details

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