NCP1215 Datasheet (ON) - Low Cost Variable OFF Time Switched Mode Power Supply Controller

NCP1215, Low Cost Variable OFF Time Switched Mode Power Supply Controller

TSOP *6 4 3 1 2 6 5 7 8 SOIC *8 1 2 3 4 5 6 7 8 Symbol FB Description The FB pin provides voltage feedback loop.

The current injected into the pin determines the primary switch OFF time interval.

It also influences the peak value of the primary current.

Connection for an external timin

NCP1215 Product Preview Low Cost Variable OFF Time Switched Mode Power Supply Controller The NCP1215 is a controller for low power off line flyback Switchemode Power Supplies (SMPS) featuring low size, weight and cost constraints together with a good low standby power performance.

The operating principle uses switching frequency reduction at light load by increasing the OFF Time.

Also, when OFF Time expands, the peak current is gradually reduced down to approximately 1/4 of the maximum p

NCP1215 Features

* http://onsemi.com MARKING DIAGRAMS 8 8 1 SOIC

* 8 D SUFFIX CASE 751 1 6 TSOP

* 6 (SOT23

* 6, SC59

* 6) SN SUFFIX CASE 318G 1 FAA A L Y W P1215 ALYW 6 1 FAAYW = Specific Device Code = Assembly Location = Wafer Lot = Year = Work Week PIN CONNECTIONS SOIC

* 8 FB 1 8 7