AOT288L

Single FETs, MOSFETs Overview

The AOT288L is an N-channel enhancement mode MOSFET manufactured by Alpha & Omega Semiconductor Inc. utilizing trench technology for optimized high-frequency switching performance. It features a drain-source voltage (Vdss) of 80V and a continuous drain current (Id) of 10.5A at 25°C ambient temperature, rising to 46A at case temperature. The device operates within a junction temperature range of -55°C to 175°C. Key electrical parameters include a maximum gate threshold voltage of 3.4V at 250µA, a maximum gate charge of 38nC at 10V, and a maximum input capacitance of 1871pF at 40V. The on-resistance (Rds On) is specified at 9.2 milliohms when tested at 20A and 10V. Power dissipation capabilities are rated at 2.1W at ambient temperature and 93.5W at case temperature.

Single FETs, MOSFETs Feature Summary

• Trench MOSFET technology optimized for efficient high-frequency switching with minimized conduction and switching power losses.
• Low combination of Rds(ON), Ciss, and Coss to enhance overall device efficiency.
• Logic-level gate drive capability with a low gate threshold voltage.

Single FETs, MOSFETs Applications

• Boost converters
• Synchronous rectifiers
• Consumer power supplies
• Telecom power supplies
• Industrial power supplies
• LED backlighting

Single FETs, MOSFETs Procurement Notes

Verify the specific package variant required, as the AOT288L designation corresponds to the TO-220 through-hole package. Ensure compatibility with the AOZ or AOB series if surface-mount alternatives are needed, noting that these are distinct part numbers. Confirm RoHS compliance status and moisture sensitivity level prior to ordering. Check for any recent product change notices regarding pinout or thermal characteristics.

Single FETs, MOSFETs Selection Notes

Select this component for applications requiring robust N-channel switching with moderate voltage ratings up to 80V. The TO-220 package facilitates effective heat dissipation for higher current loads compared to smaller surface-mount packages. Consider the 175°C maximum junction temperature for high-thermal environments. Evaluate the 9.2 milliohm on-resistance against system efficiency requirements at the intended operating current levels.

Single FETs, MOSFETs Part Context

The AOT288L belongs to the broader family of N-channel MOSFETs from Alpha & Omega Semiconductor, specifically designed for general-purpose power switching. It shares technological similarities with the AOB288L and AOTF288L variants, which offer identical electrical specifications but differ in packaging formats such as DPAK or SO-8. This family targets cost-sensitive consumer and industrial electronics where reliable switching performance is critical.

Single FETs, MOSFETs Replacement Considerations

Direct functional replacements include the AOB288L and AOTF288L, which share identical electrical characteristics but utilize different packages (DPAK and SO-8 respectively). For direct TO-220 replacements, verify equivalent 80V/10A+ N-channel MOSFETs from other manufacturers ensuring matching Rds(on) and thermal resistance values.

Single FETs, MOSFETs FAQ

What is the maximum junction temperature for the AOT288L?

The maximum junction temperature (TJ) for the AOT288L is 175°C.

How does the continuous drain current rating vary between ambient and case temperatures?

The continuous drain current is rated at 10.5A at an ambient temperature of 25°C, while it increases to 46A when measured at case temperature.