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NCP1342: 准谐振反激控制器,带谷锁闭开关

Datasheet: Quasi-Resonant Flyback Controller, High Frequency
Rev. 18 (951kB)
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NCP1342 是一款高度集成的准谐振反激控制器,适用于设计高性能离线功率转换器。NCP1342 具有集成的有源 X2 电容器放电功能,可以实现低于 30 mW 的无负载功耗。NCP1342 具有专属的谷锁闭电路,确保稳定的谷开关。 此系统可在低至第 6 个谷的情况下运行,并转换为频率折回模式以降低开关损耗。 随着负载进一步降低,NCP1342 进入静音跳过模式来管理功率传递,同时最大程度减小噪音。为了确保高频率设计的轻负载性能,NCP1342 结合了最低峰值电流调制 (MPCM) 以快速降低开关频率。 为了帮助确保转换器耐用性,NCP1342 实施了若干关键保护功能,如内部欠电压检测、在任何输入电压下保证恒定最大输出功率的非功耗过功率保护 (OPP)、通过专门引脚实现的锁存过电压和 NTC 就绪高温保护,以及线路去除检测,可在去除交流线路时对 X2 电容器进行安全放电。
特性   优势
     
  • Minimum Peak Current Modulation for Rapid Frequency Foldback (RFF)
 
  • Fast reduction of switching frequency for improved light load efficiency
  • QR Frequency Jittering
 
  • Reduces EMI Signature
  • Quiet-Skip Technology
 
  • Ensures Operation Outside Audible Range
  • Integrated HV Startup with Brownout Protection
 
  • Provides an efficient power-on source and protects against drops in input mains voltage
  • Valley Switching Operaton with Valley Lockout
 
  • Maximizes the efficiency over the entire power range
  • Integrated X2 Capacitor Discharge Capability
 
  • Eliminates the need for a X2 resistor
  • NTC Compatible Fault Pin
 
  • Extra protection against high temperature or other fault conditions
  • High Drive Capability: -500 mA / +800 mA
 
  • Enables faster switching of primary-side MOSFET
  • Latch input for OVP and OTP implementation
 
  • Simple implementation of required protection functions
应用   终端产品
  • Medium or High Power AC-DC Adapters
  • Ultra High Density AC-DC Adapters
  • USB PD Compliant
 
  • Notebook Adapters
  • Flat TV SMPS
  • Computer Power Supplies
  • Phone and Tablet Adapters
评估/开发工具信息
产品 状况 Compliance 简短说明 行动
NCP1342PD45WGEVB Active
NCP1342 45 W USB PD Evaluation Board
NCP1342PD65WGEVB Active
NCP1342 60 W USB PD Evaluation Board
Availability & Samples
Specifications
Interactive Block Diagram
产品
状况
Compliance
具体说明
封装
MSL
容器
预算价格 (1千个数量的单价)
类型
外形
类型
Temperature
类型
数量
NCP1342AMAACD1R2G Active
Pb-free
Halide free
NCP1342 SOIC-9 NB 751BP 1 260 Tape and Reel 2500 $0.44
NCP1342AMDADGD1R2G Active 
Pb-free
Halide free
NCP1342 SOIC-9 NB 751BP 1 260 Tape and Reel 2500 $0.484
NCP1342AMDCCDR2G Active
Pb-free
Halide free
NCP1342 SOIC-8 751-07 1 260 Tape and Reel 2500 $0.4267
NCP1342AMDCDAD1R2G Active
Pb-free
Halide free
NCP1342 SOIC-9 NB 751BP 1 260 Tape and Reel 2500 $0.44
NCP1342AMDCDD1R2G Active
Pb-free
Halide free
NCP1342 SOIC-9 NB 751BP 1 260 Tape and Reel 2500 $0.484
NCP1342AMDCDHD1R2G Active 
Pb-free
Halide free
NCP1342 SOIC-9 NB 751BP 1 260 Tape and Reel 2500 $0.484
NCP1342ANACCED1R2G Active
Pb-free
Halide free
NCP1342 SOIC-9 NB 751BP 1 260 Tape and Reel 2500 $0.484
NCP1342ANACECD1R2G Last Shipments
Pb-free
Halide free
NCP1342 SOIC-9 NB 751BP 1 260 Tape and Reel 2500  
NCP1342ANACED1R2G Active
Pb-free
Halide free
NCP1342 SOIC-9 NB 751BP 1 260 Tape and Reel 2500 $0.484
NCP1342ANDAAD1R2G Active
Pb-free
Halide free
NCP1342 SOIC-9 NB 751BP 1 260 Tape and Reel 2500 $0.44
NCP1342ANDBDD1R2G Active
Pb-free
Halide free
NCP1342 SOIC-9 NB 751BP 1 260 Tape and Reel 2500 $0.484
NCP1342BKDCDAD1R2G Active 
Pb-free
Halide free
NCP1342 SOIC-9 NB 751BP 1 260 Tape and Reel 2500 $0.484
NCP1342BMDCDAD1R2G Active
Pb-free
Halide free
NCP1342 SOIC-9 NB 751BP 1 260 Tape and Reel 2500 $0.484
NCP1342BMDCDDD1R2G Active
Pb-free
Halide free
NCP1342 SOIC-9 NB 751BP 1 260 Tape and Reel 2500 $0.484
NCP1342DADBDD1R2G Active
Pb-free
Halide free
NCP1342 SOIC-9 NB 751BP 1 260 Tape and Reel 2500 $0.44
NCP1342ENACEFD1R2G Active 
Pb-free
Halide free
NCP1342 SOIC-9 NB 751BP 1 260 Tape and Reel 2500 $0.484
NCP1342ENDCEAD1R2G Active 
Pb-free
Halide free
NCP1342 SOIC-9 NB 751BP 1 260 Tape and Reel 2500 $0.484
市场订货至交货的时间(周) : Contact Factory
市场订货至交货的时间(周) : Contact Factory
市场订货至交货的时间(周) : Contact Factory
市场订货至交货的时间(周) : Contact Factory
市场订货至交货的时间(周) : 4 to 8
ON Semiconductor   (2020-09-02 00:00) : 67,500
市场订货至交货的时间(周) : 8 to 12
ON Semiconductor   (2020-09-02 00:00) : 13,418
市场订货至交货的时间(周) : 8 to 12
市场订货至交货的时间(周) : Contact Factory
ON Semiconductor   (2020-09-02 00:00) : 55,000
市场订货至交货的时间(周) : Contact Factory
市场订货至交货的时间(周) : 4 to 8
市场订货至交货的时间(周) : Contact Factory
市场订货至交货的时间(周) : 8 to 12
ON Semiconductor   (2020-09-02 00:00) : 15,399
市场订货至交货的时间(周) : 13 to 16
市场订货至交货的时间(周) : 17 to 20
市场订货至交货的时间(周) : Contact Factory
市场订货至交货的时间(周) : Contact Factory
市场订货至交货的时间(周) : Contact Factory

Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
Control Mode
fsw Typ (kHz)
Stand-by Mode
UVLO (V)
Short Circuit Protection
Latch
Soft Start
VCC Max (V)
Drive Cap. (mA)
Package Type
NCP1342AMAACD1R2G  
 $0.44 
Pb
H
 Active   
Flyback
Current Mode
variable
Yes
9
Yes
No
Yes
30
500 / 800
SOIC-9 NB
NCP1342AMDADGD1R2G  
 $0.484 
Pb
H
 Active   
Flyback
Current Mode
Variable
Yes
9
Yes
No
Yes
30
500 / 800
SOIC-9 NB
NCP1342AMDCCDR2G  
 $0.4267 
Pb
H
 Active   
Flyback
Current Mode
variable
Yes
9
Yes
No
Yes
30
500 / 800
SOIC-8
NCP1342AMDCDAD1R2G  
 $0.44 
Pb
H
 Active   
Flyback
Current Mode
variable
Yes
9
Yes
No
Yes
30
500 / 800
SOIC-9 NB
NCP1342AMDCDD1R2G  
 $0.484 
Pb
H
 Active   
Flyback
Current Mode
Variable
Yes
9
Yes
No
Yes
30
500 / 800
SOIC-9 NB
NCP1342AMDCDHD1R2G  
 $0.484 
Pb
H
 Active   
Flyback
Current Mode
Variable
Yes
9
Yes
No
Yes
30
500 / 800
SOIC-9 NB
NCP1342ANACCED1R2G  
 $0.484 
Pb
H
 Active   
Flyback
Current Mode
Variable
Yes
9
Yes
No
Yes
30
500 / 800
SOIC-9 NB
NCP1342ANACED1R2G  
 $0.484 
Pb
H
 Active   
Flyback
Current Mode
Variable
Yes
9
Yes
No
Yes
30
500 / 800
SOIC-9 NB
NCP1342ANDAAD1R2G  
 $0.44 
Pb
H
 Active   
Flyback
Current Mode
variable
Yes
9
Yes
No
Yes
30
500 / 800
SOIC-9 NB
NCP1342ANDBDD1R2G  
 $0.484 
Pb
H
 Active   
Flyback
Current Mode
Variable
Yes
9
Yes
No
Yes
30
500 / 800
SOIC-9 NB
NCP1342BKDCDAD1R2G  
 $0.484 
Pb
H
 Active   
Flyback
Current Mode
Variable
Yes
9
Yes
Yes
Yes
30
500 / 800
SOIC-9 NB
NCP1342BMDCDAD1R2G  
 $0.484 
Pb
H
 Active   
Flyback
Current Mode
Variable
Yes
9
Yes
Yes
Yes
30
500 / 800
SOIC-9 NB
NCP1342BMDCDDD1R2G  
 $0.484 
Pb
H
 Active   
Flyback
Current Mode
Variable
Yes
9
Yes
Yes
Yes
30
500 / 800
SOIC-9 NB
NCP1342DADBDD1R2G  
 $0.44 
Pb
H
 Active   
Flyback
Current Mode
Variable
Yes
9
Yes
Yes
Yes
30
500 / 800
SOIC-9 NB
NCP1342ENACEFD1R2G  
 $0.484 
Pb
H
 Active   
Flyback
Current Mode
Variable
Yes
9
Yes
Yes
Yes
30
500 / 800
SOIC-9 NB
NCP1342ENDCEAD1R2G  
 $0.484 
Pb
H
 Active   
Flyback
Current Mode
Variable
Yes
9
Yes
Yes
Yes
30
500 / 800
SOIC-9 NB
外形
751BP    751-07   
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