Overview
The AO3400, produced by Alpha & Omega Semiconductor Inc., is a 30V N-Channel MOSFET that leverages advanced trench MOSFET technology to offer exceptionally low on-resistance (RDS(ON)). This device is particularly suited for applications requiring high efficiency and low power loss, such as load switches and PWM (Pulse Width Modulation) circuits. The AO3400 is packaged in a SOT23-3 package, making it compact and suitable for a variety of modern electronic designs.
Key Specifications
| Parameter | Typical | Maximum | Units |
|---|---|---|---|
| Drain-Source Voltage (VDS) | - | 30 | V |
| Continuous Drain Current (ID) at TA=25°C | - | 5.8 | A |
| Pulsed Drain Current (IDM) | - | 18 | A |
| Gate-Source Voltage (VGS) | - | ±12 | V |
| Gate Threshold Voltage (VGS(th)) | 0.65 - 1.05 - 1.45 | - | V |
| On-Resistance (RDS(ON)) at VGS=10V | < 28 | - | mΩ |
| On-Resistance (RDS(ON)) at VGS=4.5V | < 33 | - | mΩ |
| On-Resistance (RDS(ON)) at VGS=2.5V | < 52 | - | mΩ |
| Gate Charge (Qg) | 6 - 7 | - | nC |
| Input Capacitance (Ciss) at VDS=15V | 630 | - | pF |
| Operating Junction Temperature Range | -55 to 150 | - | °C |
Key Features
- Advanced trench MOSFET technology for extremely low RDS(ON)
- Low gate charge and operation with gate voltages as low as 2.5V
- Suitable for use as a load switch or in PWM applications
- Compact SOT23-3 package
- High efficiency and low power loss
- Wide operating junction temperature range (-55°C to 150°C)
Applications
- Load switches in various electronic devices
- PWM (Pulse Width Modulation) circuits in power supplies, motor control, and lighting systems
- DC-DC converters and power management systems
- Automotive and industrial control systems
- Consumer electronics requiring high efficiency and low power loss
Q & A
- What is the maximum drain-source voltage of the AO3400?
The maximum drain-source voltage (VDS) of the AO3400 is 30V.
- What is the continuous drain current rating of the AO3400 at 25°C?
The continuous drain current (ID) rating of the AO3400 at 25°C is 5.8A.
- What are the typical on-resistance values for the AO3400 at different gate voltages?
The typical on-resistance (RDS(ON)) values are less than 28mΩ at VGS=10V, less than 33mΩ at VGS=4.5V, and less than 52mΩ at VGS=2.5V.
- What is the gate threshold voltage range for the AO3400?
The gate threshold voltage (VGS(th)) range for the AO3400 is 0.65V to 1.45V.
- What is the typical gate charge for the AO3400?
The typical gate charge (Qg) for the AO3400 is 6 to 7 nC.
- What is the input capacitance of the AO3400 at VDS=15V?
The input capacitance (Ciss) of the AO3400 at VDS=15V is 630 pF.
- What are the typical applications for the AO3400?
The AO3400 is typically used in load switches, PWM circuits, DC-DC converters, and various power management systems.
- What is the operating junction temperature range for the AO3400?
The operating junction temperature range for the AO3400 is -55°C to 150°C.
- What package types are available for the AO3400?
The AO3400 is available in SOT23-3, TO-236-3, and SC-59 packages.
- Why is the AO3400 suitable for PWM applications?
The AO3400 is suitable for PWM applications due to its low on-resistance, low gate charge, and ability to operate with gate voltages as low as 2.5V, which enhances efficiency and reduces power loss.
