Alpha & Omega AO4914 Datasheet

AO4914 is a dual N-channel enhancement mode field effect transistor with Schottky diode packaged together, used in DC-DC converters.


Alpha & Omega AO4914 Datasheet - cover page
Brand
Alpha
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
8
File format
PDF
File size
141 KB
Published
10 May, 2012
Updated
30 September, 2023
MD5 checksum
E4F0E5489D30B3051309D94591C0351E

About this manual

The AO4914 is a dual N‑channel enhancement‑mode MOSFET that incorporates a co‑packaged Schottky diode to improve efficiency in DC‑DC converters. The device features low on‑resistance, high current capability, and a compact trench‑technology design suitable for synchronous rectifier applications.

The datasheet lists absolute maximum ratings, typical electrical and thermal characteristics, and includes detailed graphs of on‑resistance, gate charge, and capacitance. It also contains safety notices that the product is intended for consumer markets only and must not be used in life‑support systems.

What's inside

  • General Description
  • Features
  • Absolute Maximum Ratings
  • Electrical Characteristics
  • Thermal Characteristics
  • Typical Electrical and Thermal Characteristics
  • Figures

Specifications

Continuous Drain Current (Id)8.5 A
On‑Resistance (Rds(on))<18 mΩ (typical)
Input Capacitance (Ciss)971 pF (typical)
Total Gate Charge Qg(10V)19.2 nC (typical)
Junction‑to‑Ambient Thermal Resistance (RθJA)62.5 °C/W (typical)

Frequently asked questions

What is the maximum continuous drain current for the AO4914?

The AO4914 can handle a continuous drain current of 8.5 A.

How is the thermal resistance of the MOSFET and Schottky diode specified?

Thermal resistance is given as junction‑to‑ambient (RθJA) of 62.5 °C/W for each chip, measured with the device mounted on a FR‑4 board in still air at 25 °C.

Are there any usage restrictions for the AO4914?

Yes, the product is intended for consumer markets only and must not be used in life‑support devices or systems.

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