Diodes Incorporated — Analog and discrete power solutions
SO 7

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

SO-7.png
Back to Primary-Side Regulation Controllers and Switchers

AP39811

Primary Side Regulated power switcher

Contact Sales

Log in or register to manage email notifications about changes to datasheets or PCNs for this part.

Description

The AP39811 is a high performance power switcher integrated with aprimary side regulation controller and an integrated N-channel power MOSFET for the application of shaver charger. It is easy to achieve a targeted slant IV curve without an opto-coupler and secondary control circuitry. A resistor connected between FB pin and CPR pin is introduced to adjust the slew rate of the slant IV curve.

The AP39811 operates in Pulse Frequency Modulation (PFM) mode and peak current Amplitude Modulation (AM) mode to form a fine tune frequency curve within the whole power range. Therefore, AP39811 can achieve high average efficiency and avoid audible noise.

The AP39811 provides comprehensive protections without additional circuitry. It contains VCC over voltage protection, output over voltage protection, XFMR anti-saturation protection, bulk-cap open protection, open loop protection, over temperature protection, etc. The AP39811 is available in SO-7 package.

Feature(s)

  • Primary Side Control for Eliminating Opto-Coupler
  • Built-In 650V Power MOSFET
  • Slant IV Curve Control
  • 75mW No-Load Input Power
  • Flyback Topology in DCM Operation
  • External Adjustable Line Compensation for CC
  • Multiple AM/PFM Control Mode to Improve Audio Noise and Efficiency
  • Frequency Jitter to Improve System EMI
  • Valley-On for the Higher Efficiency and Better EMI Behavior
  • Multiple Protections:
  • Over Voltage Protection (OVP)
  • Bulk-Cap Open Protection
  • Transformer Saturation Protection (TSP) via Primary Peak Current Limitation
  • Internal Over Temperature Protection (OTP)
  • SO-7 Package
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)

Application(s)

  • Shaver Charger

Product Specifications

Product Parameters

Switch MOS
BVDSS (Min) (V) 650
OperatingCurrent (µA) 650
StandbyPower (Max) (mW) 75
Power Rating (W) 7.5 W
Release Date 201906

Related Content

Packages

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2603 2023-03-20 2023-06-20 Qualified Additional Wafer Fab Source (SFAB2/JKFAB), Die Revision, Bill of Material