Design contains obsolete parts

NCP1351ADAPGEVB: 19V @ 60W, 85 ~ 264VAC in

Summary

The NCP1351 is a current mode controller targeting low power off line flyback Switched Mode Power Supplies (SMPS) where cost is of utmost importance. Based on a fixed peak current technique (quasi fixed TON), the controller decreases its switching frequency as the load becomes lighter. As a result, a power supply using the NCP1351 naturally offers excellent no load power consumption, while optimizing the efficiency in other loading conditions. When the frequency decreases, the peak current is gradually reduced down to approximately 30% of the maximum peak current to prevent transformer mechanical resonance. The risk of acoustic noise is thus greatly diminished while keeping good standby power performance.

An externally adjustable timer permanently monitors the feedback activity and protects the supply in presence of a short circuit or an overload. Once the timer elapses, NCP1351 stops switching and stays latched for version A, and tries to restart for Version B.

Specifications

Manufacturer	onsemi
Category	AC/DC and DC/DC Conversion
Sub-Category	AC/DC SMPS - Single Output
Eval Board Part Number	NCP1351ADAPGEVBOS-ND
Eval Board Supplier	onsemi
Eval Board	Board not Stocked
AC Voltage	115 V 230 V Universal (115 / 230V)
Outputs and Type	1 Isolated
Voltage Out	19 V
Current Out	3 A
Output Power	60 W
Features	Current Limit (Adj. or Fixed) Open Circuit Protection Over Current Protection Shutdown, Enable, Standby Soft Start Thermal Protection Zero Load Regulation
Efficiency @ Conditions	>84%, 230 VAC, 19V @ 1.2 ~ 3 A >83%, 100 VAC in, 19V @ 1 ~ 3 A
No-load Input Power @ Voltage	112 mW @ 110 V
Switching Frequency	65 kHz
Internal Switch	No
Component Count + Extras	54 + 5
Voltage In	85 ~ 264 VAC
Design Author	ONSemiconductor
Application / Target Market	Computers Power: Industrial Power Servers Telecom
Main I.C. Base Part	NCP1351
Date Created By Author	2010-05
Date Added To Library	2016-06