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

PMIC - Gate Drivers - ISL89168FBEAZ application field and working principle

The ISL89168FBEAZ is a high performance, low side gate driver IC (GDI) with integrated power MOSFETs, suitable for a wide range of industrial, automotive, consumer and communications applications. It is optimized for low current and low voltage industrial and automotive applications that require fast switching and low noise operation. This GDI is available in various package types and is designed to meet the needs of smart power management solutions.

Features

• Integrated bootstrap MOSFET
• Integrated high-side and low-side MOSFETs
• Low voltage and current operation
• Voltage clamping
• High frequency switching
• Minimum load capacitance
• Low active power consumption
• Over-voltage protection
• Under-voltage lockout
• Power-down current feed-forward
•   Output error detection (OED)
• Small-signal oscillator synchronization
• Compatible with a wide range of microcontrollers

Applications

• Industrial, automotive and consumer electronics
• Power supply and switching
• Lighting and lighting control
• Motor control and protection
• Serial communications (RS-232/CAN)
• Charge pumps
• Telecommunications

Working Principle

The working principle of the ISL89168FBEAZ is based on that of a low side gate driver IC (GDI). It is composed of a main controller unit and an auxiliary driver unit. The main controller unit is the part responsible for providing the main gate drive signals and controlling the power MOSFETs. It contains a voltage clamping circuit and over-voltage protection circuitry, as well as a PLL (phase-locked loop) based synchronization circuit.The auxiliary driver unit is responsible for providing the gate drive signals to the power MOSFETs. The output of this unit is controlled by the main controller unit. The auxiliary driver has the ability to sense the output voltage and adjust its output accordingly, thus providing a more efficient operation. In addition, it has an over-voltage lockout (UVLO) feature, which can detect if the output voltage exceeds the specified range and shut down the output.

Conclusion

The ISL89168FBEAZ is a versatile and highly efficient gate driver IC designed for low voltage, low current, and low switching noise applications. It features integrated high-side and low-side MOSFETs, a voltage clamping circuit, an over-voltage protection circuitry, a PLL-based synchronization circuit, and an over-voltage lockout (UVLO) feature, making it suitable for industrial, automotive, consumer and communications applications.

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