TPS2815D

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

TPS2815D falls into the category of PMIC - Gate Drivers. It is a specialized class of power management integrated circuit (PMIC), specifically designed for driving high-power transistors such as MOSFET and IGBTs, which have less gate drive power and capability than standard PMICs. The TPS2815D can provide up to 650mA gate drive current with gate voltages up to 15V for switching the high power transistors at speeds of up to 25MHz. The device also features protections for overvoltage, overcurrent, and thermal shutdown.

Application Field

The TPS2815D covers a wide range of applications, many of which are focused on improving the efficiency of high power systems. It can be used in motor control circuits, such as brushless dc (BLDC) motors and induction motors. Because of its fast switching speed, the TPS2815D is highly suitable for switching applications such as power converters, DC-DC converters, boost converters, flyback converters, and so on. Additionally, the device can be used in some more specific applications such as automotive headlamp control and medium voltage control.

Working Principle

The basic working principle of the TPS2815D is simple - it uses a controlled current source to drive the gate of the FET, allowing the user to set the threshold voltage at which the FET begins to turn ON or OFF. This is accomplished by an arrangement of transistors, resistors, and diodes, connected in a particular configuration. By controlling the current through the channel, the gate drive voltage and the FET characteristics can be adjusted.

The gate drive current is generated by the current source and is adjustable to the desired level by setting the current control resistor. The gate voltage is created by the bootstrap capacitors, which charge up to the desired voltage when the FET is not conducting any current. The amount of current that can be supplied is directly proportional to the resistance value chosen in the circuit.

The protection features of the TPS2815D ensure the device is safe to use in a variety of stringent environment. The Overvoltage Protection feature monitors the output voltage and automatically turns the device off when it exceeds a preset limit. Additionally, the Overcurrent Protection feature monitors the current through the circuit and shuts down the device when the current exceeds a preset limit. Finally, the Thermal Shutdown feature ensures that the device does not overheat and fails, by automatically shutting down the device when it reaches a preset temperature.

Overall, the TPS2815D is a high performance and durable Gate Driver, specifically designed and optimized for power management applications. The device is capable of operating in a wide range of applications and can be used to drive high power FETs efficiently and safely. With its Overvoltage, Overcurrent and Thermal Shutdown protection features, the TPS2815D provides a safe and reliable way of controlling high voltage, high current systems.

The specific data is subject to PDF, and the above content is for reference