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NCP1250: PWM Controller, Current Mode, for Offline Power Supplies

Overview
Specifications
Packages
Applications
Datasheet: オフライン電源用電流モードPWMコントローラ
Rev. 10 (446kB)
Product Overview
»信頼性データを表示する
»材料組成を表示
»製品変更通知 (1)
The NCP1250 is a highly integrated PWM controller capable of delivering a rugged and high performance offline power supply in a tiny TSOP-6 package. With a supply range up to 28 V, the controller hosts a jittered 65 kHz or 100 kHz switching circuitry operated in peak current mode control. When the power on the secondary side starts to decrease, the controller automatically folds back its switching frequency down to a minimum level of 26 kHz. As the power further goes down, the part enters skip cycle while limiting the peak current. 40W Adapter
Over Power Protection (OPP) is a difficult exercise especially when no-load standby requirements drive the converter specifications. The ON proprietary integrated OPP lets you harness the maximum delivered power without affecting your standby performance simply via two external resistors. An Over Voltage Protection input is also combined on the same pin and protects the whole circuitry in case of optocoupler failure or adverse open loop operation.
Finally, a timer-based short-circuit protection offers the best protection scheme, letting you precisely select the protection trip point irrespective of a loose coupling between the auxiliary and the power windings.
特長   利点
     
  • Non-dissipative internal and adjustable Over Power Protection (OPP) circuits
 
  • Limits maximum delivered power without affecting standby performance
  • Frequency Foldback down to 26 kHz and Skip-Cycle in light load conditions
 
  • High efficiency in light load conditions
  • Internal Ramp Compensation
 
  • Reduces the number of external components
  • Frequency jittering from full load to skip-cycle
 
  • Improved EMI performance
  • Latch input for OVP and OTP implementations
 
  • Simple implementation of required protection functions
  • See NCP1251 for integrated Over Voltage Protection (OVP) monitoring on the Vcc pin
   
アプリケーション   最終製品
  • Offline Adapters
  • AC-DC converters
 
  • Set-top Boxes
  • Printers
  • Notebooks and Netbooks
評価/開発ツール情報
製品 状態 Compliance 簡単な説明 アクション
NCP1250B40WGEVB Active
Pb-free
40 W Notebook Adapter Demonstration Evaluation Board
Avnet (2017-03-29) : 2
供給状況 & サンプル
製品
状態
Compliance
内容
外形
MSL*
梱包形態
予算 価格/Unit
タイプ
Case Outline
タイプ
数量
NCP1250ASN100T1G Active
Pb-free
Halide free
PWM Controller, Current Mode, for Offline Power Supplies TSOP-6 318G-02 1 Tape and Reel 3000 $0.14
NCP1250ASN65T1G Active
Pb-free
Halide free
PWM Controller, Current Mode, for Offline Power Supplies TSOP-6 318G-02 1 Tape and Reel 3000 $0.14
NCP1250BP65G Active
Pb-free
Halide free
PWM Controller, Current Mode, for Offline Power Supplies PDIP-8 626-05 NA Tube 50 $0.2267
NCP1250BSN100T1G Active
Pb-free
Halide free
PWM Controller, Current Mode, for Offline Power Supplies TSOP-6 318G-02 1 Tape and Reel 3000 $0.14
NCP1250BSN65T1G Active
Pb-free
Halide free
PWM Controller, Current Mode, for Offline Power Supplies TSOP-6 318G-02 1 Tape and Reel 3000 $0.14
面実装デバイスためのモイスチャー・レベル(260°Cリフローでの鉛フリー測定、235°Cリフローでの鉛フリー以外測定)
マーケットリードタイム(週) : Contact Factory
Mouser   (2017-03-29) : >1K
ON Semiconductor   (2017-03-29) : 27,000
マーケットリードタイム(週) : 2 to 4
Arrow   (Thu Mar 30 03:41:20 MST 2017) : 90
Mouser   (2017-03-29) : >1K
ON Semiconductor   (2017-03-29) : 45,000
マーケットリードタイム(週) : 4 to 8
Arrow   (Thu Mar 30 03:41:20 MST 2017) : 95
Mouser   (2017-03-29) : >1K
ON Semiconductor   (2017-03-29) : 344,000
マーケットリードタイム(週) : 2 to 4
Arrow   (Thu Mar 30 03:41:20 MST 2017) : 91
Mouser   (2017-03-29) : >1K
マーケットリードタイム(週) : Contact Factory
Arrow   (Thu Mar 30 03:41:20 MST 2017) : 94
Chip1Stop   (2017-03-29) : <1K
Digikey   (2017-03-29) : >1K
Mouser   (2017-03-29) : >1K
PandS   (2017-03-29) : >1K
Datasheet: オフライン電源用電流モードPWMコントローラ
Rev. 10 (446kB)
Product Overview
»信頼性データを表示する
»材料組成を表示
»製品変更通知 (1)

Product Compliance Status Description 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
Pb-free
Halide free
 Active     PWM Controller, Current Mode, for Offline Power Supplies 
Flyback
Current Mode
100
Yes
8.8
Yes
Yes
Yes
28
300 / 500
TSOP-6
Pb-free
Halide free
 Active     PWM Controller, Current Mode, for Offline Power Supplies 
Flyback
Current Mode
65
Yes
8.8
Yes
Yes
Yes
28
300 / 500
TSOP-6
Pb-free
Halide free
 Active     PWM Controller, Current Mode, for Offline Power Supplies 
Flyback
Current Mode
65
Yes
8.8
Yes
Yes
Yes
28
300 / 500
PDIP-8
Pb-free
Halide free
 Active     PWM Controller, Current Mode, for Offline Power Supplies 
Flyback
Current Mode
100
Yes
8.8
Yes
Yes
Yes
28
300 / 500
TSOP-6
Pb-free
Halide free
 Active     PWM Controller, Current Mode, for Offline Power Supplies 
Flyback
Current Mode
65
Yes
8.8
Yes
Yes
Yes
28
300 / 500
TSOP-6
過去に閲覧した製品
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Associated Products
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特集ビデオ
40 W Notebook Adapter Demonstration Evaluation Board - NCP1250B40WGEVB Test Procedure

さらに多くのビデオ…