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NCP1249D, NCP1249C Datasheet - ON Semiconductor

NCP1249D - High-Voltage Current-Mode PWM Controller

When the voltage on this pin disappears, the controller ensures the X2 *capacitors discharge.

Connecting an opto-coupler to this pin allows regulation.

The opto *coupler can pull the feedback pin down and brings the controller in a deep sleep mode.

This pin monitors the primary peak cu

NCP1249C, NCP1249D High-Voltage Current­Mode PWM Controller Featuring Peak Power Excursion and Self-Relaxing Off Mode The NCP1249 is a highly integrated high voltage PWM controller http://onsemi.com capable of delivering a rugged and high performance offline power supply with extremely low no load consumption.

With a supply range MARKING DIAGRAM up to 30 V, the controller hosts a jittered 65 kHz switching circuitry operated in peak current mode control.

When the power on

NCP1249D Features

* several key 9 1 SOIC

* 9 NB D SUFFIX CASE 751BP 9 NCP1249x65 ALYW G 1 protective features: a internal brown

* out, a non

* dissipative Over Power Protection for a constant maximum output current regardless of the input voltage and two latched over voltage protection inputs

NCP1249C-ONSemiconductor.pdf

This datasheet PDF includes multiple part numbers: NCP1249D, NCP1249C. Please refer to the document for exact specifications by model.
NCP1249D Datasheet Preview Page 2 NCP1249D Datasheet Preview Page 3

Datasheet Details

Part number:

NCP1249D, NCP1249C

Manufacturer:

ON Semiconductor ↗

File Size:

1.05 MB

Description:

High-voltage current-mode pwm controller.

Note:

This datasheet PDF includes multiple part numbers: NCP1249D, NCP1249C.
Please refer to the document for exact specifications by model.

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