AP3927D

Description

The AP3927D is a universal AC/DC offline regulator with low standby power, which is specially designed for IoT applications and home appliances with non-isolated buck solution or buck-boost solution.

The device integrates the controller and a 700V high-performance power MOSFET into one monolithic device. Coordinating with a single-winding inductor, it uses minimum external components and provides a low Bill Of Material (BOM) cost solution.

The AP3927D supports fixed frequency CCM mode with heavy load, and PFM (Pulse Frequency Modulation) operation at light load. Since the peak current is very low for light-load operation, it ensures an excellent audible noise-free performance.

The AP3927D has multiple protection features to enhance the system safety and reliability, which include overtemperature protection, undervoltage lockout function, output short protection, and overload protection.

The AP3927D is available in SO-7 (Type B) package.

Feature(s)

• Universal 85VAC to 277V_AC Input Range
• Internal MOSFET of 700V
• Maximal Peak Current: 650mA Typical
• Typical Output Current: 360mA
• Improved Constant Voltage: ±5%
• Low No-Load Power Consumption
• No Audible Noise Solution
• Support Topology: Buck, Boost, Buck-Boost
• Frequency Dithering to Suppress EMI
• Various Protections
  • OTP (Overtemperature Protection)
  • OLP (Overload Protection)
  • SCP (Short-Circuit Protection)
  • OVP (Overvoltage Protection)
• SO-7 (Type B) Package
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
• For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/

Application(s)

• IoT applications: smoke detectors, fire alarms
• Non-isolated home appliances: AC fans, rice cookers, shavers, milk machines, ceiling lights
• Industrial controls
• Standby and auxiliary power supply units