Offline Controllers | CS51221

用于正向和反激的增强电压模式 PWM 控制器

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概览

CS51221 增强电压模式 PWM 控制器包括基本电压模式运行所需的所有特性。此 PWM 控制器针对高频率初级侧控制运行进行了优化。另外，此器件包括以下功能： 软启动，准确占空比限制控制，小于 50uA 的启动电流，过电压和欠电压保护，以及双向同步。CS51221 采用 SOIC-16 和 TSSOP-16 表面贴装封装。

  • Hot Swap - DC-DC Conversion
  • 1MHz Frequency Capability
  • Fixed Frequency Voltage Mode Operation, with Feed Forward
  • Thermal Shutdown
  • Under Voltage Lock-out
  • Accurate Programmable Max Duty Cycle Limit
  • 1A Sink/Source Gate Drive
  • Programmable Pulse-by-Pulse Overcurrent Protection
  • Leading Edge Current Sense Blanking
  • 75ns Shutdown Propagation Delay
  • Programmable Soft Start
  • Undervoltage Protection
  • Overvoltage Protection with Programmable Hysteresis
  • Bi-directional Synchronization
  • 25ns GATE Rise and Fall Time (1nF load)
  • 3.3V 3% Reference Voltage Output
  • Pb-Free Package is Available

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CAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Topology

Control Mode

fsw Typ (kHz)

Stand-by Mode

UVLO (V)

Short Circuit Protection

Latch

Soft Start

VCC Max (V)

Drive Cap. (mA)

Reference Price

CS51221ED16G

Contact Sales

Obsolete

CAD Model

Pb

A

H

P

SOIC-16

751B-05

1

260

TUBE

48

N

Forward

Voltage Mode

Up to 1000

No

Yes

No

Yes

Yes

15

1000

Price N/A

More Details

CS51221EDR16G

Contact Sales

Last Shipments

CAD Model

Pb

A

H

P

SOIC-16

751B-05

1

260

REEL

2500

N

Forward

Voltage Mode

Up to 1000

No

Yes

No

Yes

Yes

15

1000

Price N/A

More Details

CS51221EDTB16G

Contact Sales

Obsolete

CAD Model

Pb

A

H

P

TSSOP-16

948F-01

1

260

TUBE

96

N

Forward

Voltage Mode

Up to 1000

No

Yes

No

Yes

Yes

15

1000

Price N/A

More Details

CS51221EDTB16R2G

Contact Sales

Obsolete

CAD Model

Pb

A

H

P

TSSOP-16

948F-01

1

260

REEL

2500

N

Forward

Voltage Mode

Up to 1000

No

Yes

No

Yes

Yes

15

1000

Price N/A

More Details

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