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GD75232DBR Application Field and Working Principle

Introduction

GD75232DBR is a 3-channel, low-side driver for driving process sensors, current loops and solenoid valves. Its maximum continuous and peak output current ratings are 6.25A and 10A respectively. This device has two common enable inputs and is used in 12V battery powered systems. It has enable inputs with open drain outputs and has a resistive/capacitive bootstrap generator. GD75232DBR also has three inverting inputs which allow both PWM and digital control.

Application fields

GD75232DBR is mainly used in automotive and industrial control and data acquisition systems, Automotive applications such as HVAC controllers, engine control, transmission mobile lift control and fuel injection systems. It is also used in Industrial applications like industrial machine actuator control, mass flow controllers, motor controllers and process control.

Working principle

The GD75232DBR is a 3-channel low-side driver, and contains 2 common enable inputs and three inverting inputs, which allow both PWM and digital control. The device is configured with two common enable inputs, EN1 and EN2. When EN1 and EN2 signals are both high, the outputs will be enabled. When either of the EN1 and EN2 signals are low, the outputs are disabled. The outputs of the low-side driver can be used to drive process sensors, current loops, and solenoid valves.

The GD75232DBR has a resistive/capacitive bootstrap generator which allows the outputs to be biased with a voltage larger than the battery supply. This circuit withstands high inrush currents and offers reverse polarity protection. The GD75232DBR has three inverting inputs which allow both PWM and digital control. The device also includes fault response logic, which features a programmable delay, and can be used to identify open and short circuit conditions.

Conclusion

GD75232DBR is a 3-channel, low-side driver for driving process sensors, current loops and solenoid valves. Its maximum continuous and peak output current ratings are 6.25A and 10A respectively. This device has two common enable inputs and is used in 12V battery powered systems. It is mainly used in automotive and industrial control and data acquisition systems, such as HVAC controllers, motor controllers, and fuel injection systems. The device is designed with a resistive/capacitive bootstrap generator and three inverting inputs which allow both PWM and digital control.

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