Power Factor Controllers | MC33368

功率因数控制器 (PFC)，高电压

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概览

MC33368 是一款有源功率因数校正控制器，用作离线电源应用中的升压预转换器。MC33368 适用于需要最小板面积、减少组件计数和低功耗的低功耗、高功率密度电源。窄体 SOIC 封装占位小。与高电压启动的集成与电阻自举电路相比，节省了大约 0.7 W 的功率。MC33368 具有监督计时器用于启动输出开关，单象限乘法器可强制线路电流跟随瞬变线路电压，零电流检测器确保临界导通运行，跨导误差放大器电路，电流感应比较器，5.0 V 参比，欠电压锁闭 (UVLO) 电路用于监督 VCC 电源电压，以及 CMOS 驱动器用于驱动 MOSFET。MC33368 还包括了可编程的输出开关频率箝位。保护功能包括输出过电压比较器用于最大程度减少超射，重启延迟计时器和按周期电流限制。

  • Active Power Factor Control

  • Off-Line Power Supplies

  • Lossless Off-Line Startup
  • Output Overvoltage Comparator
  • Leading Edge Blanking (LEB) for Noise Immunity
  • Watchdog Timer to Initiate Switching
  • Restart Delay Timer

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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

MC33368DG

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Obsolete

CAD Model

Pb

A

H

P

SOIC-16

751K-01

1

260

TUBE

48

N

CRM

Variable

Current Mode

Step-Up

Variable

16

1000 / 1000

8.5 - 13

Yes

No

Yes

Price N/A

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MC33368DR2G

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Last Shipments

CAD Model

Pb

A

H

P

SOIC-16

751K-01

1

260

REEL

2500

N

CRM

Variable

Current Mode

Step-Up

Variable

16

1000 / 1000

8.5 - 13

Yes

No

Yes

Price N/A

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可靠性数据

Die Related Summary Data

Device: MC33368DG

Equivalent to wafer fab process: VHVIC

产品技术

产品技术

等效器件小时

平均故障间隔时间/平均无故障时间（按小时计算）

FITS

VHVIC

2

2577173853

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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