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Home » NEWEST Products » New by Manufacturer » ON Semiconductor » ON Semiconductor NCP125x Current-Mode PWM Controllers
NEWEST Products
ON Semiconductor NCP125x Current-Mode PWM Controllers

ON Semiconductor NCP125x
Current-Mode PWM Controllers

ON Semiconductor's NCP125x Current-Mode PWM Controllers are 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.

Features
  • Fixed−Frequency 65 Current−Mode Control Operation
  • Frequency Foldback Down to 26 kHz and Skip−Cycle in Light Load Conditions
  • Internal Fixed 4 ms Soft−Start
  • Timer−Based Auto−Recovery Short−Circuit Protection
  • Frequency Jittering in Normal and Frequency Foldback Modes
  • Option for Auto−Recovery or Latched Short−Circuit Protection
  • Up to 28 V VCC Operation
  • Low No-Load Standby Power
  • These are Pb−Free Devices
Applications
  • Offline Adapters
  • AC-DC converters
  • Set-top Boxes
  • Printers
  • Notebooks and Netbooks
Part NumberPackageTopologyfSW
(Typ)
(kHz)
UVLO
(V)
LatchDatasheet
NCP1250BSN65T1G TSOP-6 Flyback 65 8.8 Yes
NCP1251BSN65T1G TSOP-6 Flyback 65 8.8 No
NCP1253ASN65T1G TSOP-6 Flyback 65 8.8 Yes
NCP1250/NCP1251 Application Circuit
NCP1250/NCP1251 Application Circuit
NCP1253 Application Circuit
NCP1253 Application Circuit
  • ON Semiconductor
  • Power Management
  • Semiconductors|Integrated Circuits|IC-Power Management