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ISL32603EFBZ-T7A Application Field and Working Principle

The ISL32603EFBZ-T7A is a 40V, 4A, dual-channel bidirectional MOSFET driver with integrated charge pump, controlled by a logic input. It is compatible with +3V/5V logic systems, permitting active-Low or active-High different input signals with direct driving capability. It is designed for motor control, power management and integrated high side switches for load current monitoring.

Application Fields

The ISL32603EFBZ-T7A can be found in a variety of applications such as motor control, power management and load current monitoring. It is designed for motor control solutions such as low-power motor drive, BLDC motor drive, servo motor drive, and more. It is suitable for automotive applications, portable electronics, and industrial equipment. Additionally, it can be used as an integrated high side switch in intelligent lighting and solar monitoring solutions.

Working Principle

The ISL32603EFBZ-T7A operates by driving two external N-Channel MOSFETs. The driver has two channels, which are activated by the EN1 and EN2 pins. EN1 is the active-high enable signal and EN2 is the active-low enable signal. The PWRGD pin is used to indicate the status of the power supply is in an acceptable range. When the voltage on PWRGD pin is greater than 1.7V, the driver is enabled. Otherwise, the driver is disabled.

The two separate logic inputs allow independent control of the MOSFETs. The internal charge pump provides high-low voltage switching, making the driver suitable for driving a wide range of MOSFETs. The device is capable of generating a maximum driving voltage of 40V. The driver also has built-in thermal shutdown protection, current sensing and current limiting features.

Conclusion

The ISL32603EFBZ-T7A is a versatile dual-channel bidirectional MOSFET driver with integrated charge pump and can be used for motor control, power management, and load current monitoring. It features +3V/5V logic systems and can generate a maximum driving voltage of 40V. With integrated thermal shutdown protection, current sensing and current limiting features, it is suitable for a variety of automotive, portable electronics, and industrial applications.

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