The STW68N65DM6-4AG is an automotive-grade N-channel MDmesh™ power MOSFET introduced by STMicroelectronics that meets the AEC-Q101 standard. It has 650V withstand voltage, 72A continuous drain current, low on-resistance, fast recovery body diode and other characteristics. It is suitable for a variety of automotive electronic systems such as automotive power management and electric power steering.

STW68N65DM6-4AG Basic Information

Manufacturer: STMicroelectronics

Series: Automotive, AEC - Q101, MDmesh™

Package: TO - 247 - 4, Tube Package

FET Type: N - Channel

Technology: MOSFET (Metal Oxide)

Electrical Parameters

Drain-Source Voltage (Vdss): 650V

Continuous Drain Current (Id) at 25°C: 72A (Tc)

On-Resistance (Rds On): 39mΩ max (@36A, 10V)

Gate Threshold Voltage (Vgs (th)): 4.75V max (@250µA)

Gate Charge (Qg): 118nC max (@10V)

Maximum Gate-Source Voltage (Vgs): ±25V

Input Capacitance (Ciss): max 5900pF (@100V)

Maximum power dissipation (Max): 480W (Tc)

Operating temperature range: -55°C~150°C (TJ)

Product features

For automotive applications: Meets AEC-Q101 standards, suitable for automotive electronic environments, with high reliability and stability.

Fast recovery body diode: helps to reduce reverse recovery time, improve switching efficiency, reduce switching losses, and is suitable for circuits that require fast switching actions.

Low on-resistance: Compared with the previous generation of MDmesh series products, the on-resistance per unit area (Rds(on)) is lower, which can effectively reduce conduction losses and improve power conversion efficiency.

Low gate charge, input capacitance and resistance: can reduce the energy loss of the drive signal, reduce the requirements for the drive circuit, increase the switching speed, and enable the MOSFET to respond to changes in the drive signal more quickly.

100% avalanche test: ensures that the device can still maintain stable performance under avalanche breakdown conditions, improves the reliability and durability of the product, and enables it to withstand higher voltage and current shocks.

Extremely high dv/dt robustness: It can work stably in an environment with high voltage change rate, is not easily affected by voltage spikes and interference, and improves the stability and anti-interference ability of the circuit.

Excellent switching performance: Thanks to the additional drive source pin, the switching speed is faster and the switching loss is lower, which can improve the working efficiency and performance of the entire circuit.

Zener protection: The built-in Zener diode can prevent the gate voltage from being too high and damaging the device, enhance the overvoltage protection capability of the device, and improve the reliability of the product.

Application areas

Automotive electronics: Such as automotive power management systems, electric power steering systems, on-board chargers, DC-DC converters, etc.

Industrial power supply: It can be used for switching power supplies, UPS uninterruptible power supplies, etc. in industrial equipment, and can achieve efficient power conversion and control.

Solar inverter: In solar power generation systems, it is used to convert the DC power generated by solar panels into AC power to achieve grid connection or load power supply of electric energy.

Power tools: Such as electric screwdrivers, electric drills, etc., can control the start and stop and speed of the motor to improve the performance and efficiency of power tools.

Which automotive electronic systems are suitable for STW68N65DM6-4AG MOSFET?

STW68N65DM6-4AG is a MOSFET suitable for a variety of automotive electronic systems. Here are some of the main application areas:

Power management system

DC-DC converter: It can convert the high-voltage DC power of the car battery into low-voltage DC power suitable for various electronic devices to power different electronic modules of the car, such as infotainment system, on-board computer, etc. Its low on-resistance characteristic can reduce energy loss during the conversion process and improve power conversion efficiency.

On-board charger: When the AC charging pile charges the car battery, it can be used to control the charging current and voltage to achieve safe and efficient charging of the battery. The fast recovery body diode and high voltage tolerance can ensure that it can cope with various voltage and current changes during the charging process, protecting the charging circuit and battery safety.

Electric power steering system (EPS)

Power motor control: It is the key control element of the power motor in the EPS system. According to the instructions of the electronic control unit (ECU), it can accurately control the current and voltage of the power motor, thereby adjusting the size and direction of the power, so that the driver can control the steering wheel more easily.

Power conversion and protection: In the EPS system, it can efficiently convert the battery's electrical energy into the electrical energy required by the power-assist motor, and provide overcurrent, overvoltage and other protection functions during the motor start, stop and operation process to prevent the motor and other circuit components from being damaged due to abnormal conditions.

Drive motor control system

Motor drive: For the drive motor of electric vehicles or hybrid vehicles, it can be used as a power switching device to control the three-phase current of the motor and realize the forward and reverse rotation, speed regulation and other functions of the motor. Its high current carrying capacity and fast switching performance can meet the high power requirements of the drive motor under different working conditions and ensure the dynamic performance of the vehicle.

Energy recovery: During vehicle braking, the drive motor can work as a generator to convert the vehicle's kinetic energy into electrical energy and store it in the battery. STW68N65DM6-4AG can efficiently control the direction and size of the current during energy recovery to improve the energy recovery efficiency.

Automotive lighting system

LED headlight drive: In the automotive LED headlight system, it can be used to control the brightness and switch of the LED lamp, and adjust the current of the LED lamp through the PWM (pulse width modulation) signal to achieve different lighting modes and brightness adjustment. Its low on-resistance and fast switching characteristics can reduce the power consumption of the LED lamp driving circuit and improve the service life and reliability of the lamp.

Turn signal and brake light control: The flashing frequency and on-off time of the turn signal and brake light can be accurately controlled. The fast response speed can ensure that the light signal is conveyed to other road users in a timely and accurate manner, improving driving safety.