TC428COA

TC428COA Application Field and Working Principle

The TC428COA is an advanced high-performance quad half-bridge gate driver with PMIC (Power Management IC) from Microchip Technology, intended for use in automotive gate driver applications. It can be used as a single-ended output or as a differential output. It also provides an additional low-side gate driver with a reverse-voltage protection (RVP) circuit.

The TC428COA is a highly integrated 4-channel half-bridge gate driver in a single low-profile SOIC (Small Outline Integrated Circuit) package, specifically designed for automotive gate driver applications. It is capable of driving a wide variety of Power MOSFETs (Metal Oxide Semiconductor Field Effect Transistors) and IGBTs (Insulated Gate Bipolar Transistors). The TC428COA can be used as a single-ended output or as a differential output. It also provides an additional low-side gate driver with a reverse-voltage protection circuit.

Application Field

The TC428COA PMIC is suitable for use in the automotive industry for a range of applications such as load switches, solenoids, relays, and DC-DC converters. The device’s superior switching performance and maximum noise suppression make it ideal for use in automotive onboard electronics, such as HVAC (Heating, Ventilation, and Air Conditioning) systems, pumps, fans, and actuators. It is also suitable for use in industrial and consumer applications such as power supplies, motors, and industrial process control.

Features

The TC428COA PMIC offers a high level of integration, with an integrated bootstrap diode and reverse voltage protection, in addition to modern low-power modes to enable optimum performance. It is designed for use with PMOS and NMOS devices, with a 4A peak output current and a 4A peak gate drive current. It supports soft-start and over-current protection.

Benefits

The TC428COA offers superior protection features and performance in an ultra-small package. Its low-profile SOIC package makes it ideal for automotive gate driver applications, while its low-power modes enable low-side gate drivers to reduce power consumption and reduce noise. The device also offers high efficiency, low-ESR (Equivalent Series Resistance) and low-power standby modes. It also features an integrated circuit protection that allows it to withstand reverse-voltage, while still providing high-swing and high-speed outputs. The device also includes an input pre-conditioner, allowing it to operate over a wide voltage range with low-ESR and low-power standby modes.

Working Principle

The TC428COA application field, with its PMIC design, is powered from 12V to 24V, and provides a single-ended or differential output drive for power MOSFETs, IGBTs, and other power devices. The device contains two integrated drivers, with a full-bridge output drive and two low-side drivers with reverse-voltage protection. It provides a regulated output voltage and a DC supply voltage up to 12V for the drivers and their associated control logic. The output of the TC428COA is based on an internal high-speed pulse-width modulated signal that is output through the HIN/LIN (High-side In/Low-side In) lines. This signal is produced based on the duty cycle or the state of the HIN/LIN signals.

The TC428COA application field, when operated in single-ended mode, requires the HIN signal to be a pulse-width modulated signal that is based on the duty cycle of the signal. In differential mode, the HIN and LIN inputs are used together to produce a differential pulse-width modulated signal. The output PWM signal is intended to reduce the ringing associated with mechanical switch contacts, as well as inhibit noise from electrical contact bounce.

Conclusion

The TC428COA application field and working principle are designed to provide a high-performance and cost-effective automotive gate driver solution. Its advanced features and design make it ideal for automotive and consumer applications. The device is capable of driving a wide range of devices, such as Power MOSFETs and IGBTs, making it a viable option for a variety of applications.