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NCP1236: 控制器,固定频率,电流模式,用于反激转换器

Datasheet: Fixed Frequency Current Mode Controller for Flyback Converters
Rev. 5 (237kB)
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NCP1236 是一款新型固定频率电流模式控制器,具有动态自供电 (DSS) 功能。此器件与之前的 NCP12xx 系列可实现引脚兼容。DSS 功能可激活内部启动电流源使其在瞬变期间为控制器供电,大大简化了辅助电源和 VCC 电容器的设计。由于频率折回,该控制器在轻型负载条件下具有绝佳的能效,同时还能达到极低的待机功耗。凭借内部频率抖动、斜坡补偿和多功能锁存输入,此控制器非常适合那些将部件成本作为关键限制因素的转换器。另外,该控制器还包括一个新型高电压电路,组合了启动电流源和欠电压检测器,能够感应来自整流交流线路或直流滤波大电压的输入电压。该高电压感应电路还用于过功率保护目的。过功率保护、超载保护和其他保护功能提高了最终应用的安全性和可靠性。
特性   优势
     
  • Frequency Foldback then Skip Mode in light load and standby conditions
 
  • High efficiency in light and no load conditions
  • High voltage current source with brown-out detection and dynamic self-supply
 
  • Directly powered from the high voltage rail with integrated brown-out sensing to detect low input voltage.
  • Frequency Jittering
 
  • Helps pass EMI requirements by spreading out the energy content of frequency peaks
  • 4.0 ms Soft-Start
 
  • Minimizes the stress on power components
  • Adjustable Overpower Compensation
 
  • Monitors the input voltage to limit the amount of power being delivered by the converter
  • Latched / Autorecovery Timer-Based Overload Protection
 
  • Protects against overcurrent
应用   终端产品
  • AC-DC Adapters
  • Consumer Electronics Power Supplies
  • Auxiliary/Housekeeping power supplies
 
  • Notebooks
  • LCD TVs
  • Printers
评估/开发工具信息
产品 状况 Compliance 简短说明 行动
NCP1236B65NBGEVB Active
Pb-free
65 W Notebook Adapter Demonstration Evaluation Board
Availability & Samples
Specifications
外形
应用框图
Intaractive 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
NCP1236AD100R2G Active
Pb-free
Halide free
NCP1236 SOIC-7 751U 1 260 Tape and Reel 2500 $0.3333
NCP1236AD65R2G Active
Pb-free
Halide free
NCP1236 SOIC-7 751U 1 260 Tape and Reel 2500 $0.3333
NCP1236BD100R2G Active
Pb-free
Halide free
NCP1236 SOIC-7 751U 1 260 Tape and Reel 2500 $0.3333
NCP1236BD65R2G Active
Pb-free
Halide free
NCP1236 SOIC-7 751U 1 260 Tape and Reel 2500 $0.3333
NCP1236DD65R2G Active
Pb-free
Halide free
NCP1236 SOIC-7 751U 1 260 Tape and Reel 2500 $0.3333
NCP1236ED100R2G Obsolete
Pb-free
Halide free
NCP1236, Modified Vcc(min), Vcc(on), and reduced fault timer SOIC-7 751U 1 260 Tape and Reel 2500  
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) : 4 to 8
PandS   (2020-09-14 00:00) : >1K
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) : Contact Factory
PandS   (2020-09-14 00:00) : >1K
市场订货至交货的时间(周) : 17 to 20
ON Semiconductor   (2020-09-02 00:00) : 50,000
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
NCP1236AD100R2G  
 $0.3333 
Pb
H
 Active   
Flyback
Current Mode
100
Yes
9.5
Yes
Yes
Yes
28
500 / 500
SOIC-7
NCP1236AD65R2G  
 $0.3333 
Pb
H
 Active   
Flyback
Current Mode
65
Yes
9.5
Yes
Yes
Yes
28
500 / 500
SOIC-7
NCP1236BD100R2G  
 $0.3333 
Pb
H
 Active   
Flyback
Current Mode
100
Yes
9.5
Yes
Yes
Yes
28
500 / 500
SOIC-7
NCP1236BD65R2G  
 $0.3333 
Pb
H
 Active   
Flyback
Current Mode
65
Yes
9.5
Yes
Yes
Yes
28
500 / 500
SOIC-7
NCP1236DD65R2G  
 $0.3333 
Pb
H
 Active   
Flyback
Current Mode
65
Yes
9.5
Yes
Yes
Yes
28
500 / 500
SOIC-7
外形
751U   
封装
NCP1236: 控制器,固定频率,电流模式,用于反激转换器
NCP1236: 控制器,固定频率,电流模式,用于反激转换器
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65 W Notebook Adapter Demonstration Evaluation Board - NCP1236B65NBGEVB Test Procedure
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