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AP3969 - PRIMARY SIDE POWER SWITCHER

Download the AP3969 datasheet PDF. This datasheet also covers the AP3968 variant, as both devices belong to the same primary side power switcher family and are provided as variant models within a single manufacturer datasheet.

General Description

The AP3968/69/70 consists of a primary side regulation controller and a high voltage transistor, and is specially designed for off-line power supplies within 12W output power.

Typical applications include adapter for ADSL and auxiliary supplies.

Key Features

  • Primary Side Control for Eliminating Opto-coupler and Secondary CV/CC Control Circuitry.
  • Built-in NPN Transistor with 700VCBO.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (AP3968-Diodes.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
AP3969 (AP3968 - AP3970) Primary Side Power Switcher BCD
AP3968 (AP3968 - AP3970) Primary Side Power Switcher BCD
AP3902 LOW POWER PWM SWITCH BCD
AP393 LOW POWER LOW OFFSET VOLTAGE DUAL COMPARATORS Diodes Incorporated
AP393 LOW POWER LOW OFFSET VOLTAGE DUAL COMPARATORS Anachip

Other Datasheets by Diodes Incorporated

Part Number Description
AP3965 PRIMARY SIDE POWER SWITCHER
AP3966 PRIMARY SIDE POWER SWITCHER
AP3968 PRIMARY SIDE POWER SWITCHER
AP3917B UNIVERSAL AC VOLTAGE STEP DOWN POWER SWITCHER
AP3917D UNIVERSAL AC VOLTAGE STEP DOWN POWER SWITCHER

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
A Product Line of Diodes Incorporated AP3968/69/70 PRIMARY SIDE POWER SWITCHER FOR OFF-LINE SMPS Description The AP3968/69/70 consists of a primary side regulation controller and a high voltage transistor, and is specially designed for off-line power supplies within 12W output power. Typical applications include adapter for ADSL and auxiliary supplies. The AP3968/69/70 operates at pulse frequency modulation (PFM), and provides accurate constant voltage, constant current (CV/CC) regulation without requiring an opto-coupler and secondary control circuitry. It has internal cable compensation function for tight constant voltage regulation. The AP3968/69/70 solution has fewer component numbers, smaller size, and lower total cost. The AP3968 is packaged in SO-7.