DRV8323RHRGZR

The DRV8323RH-RGZR is part of Texas Instruments’ DRV8x family of high-voltage gate drivers. This device has been designed to drive two or three N-channel MOSFETs for high current DC motor applications. It is an integrated circuit specifically designed for three-phase BLDC and other high energy motor applications. The DRV8323RH-RGZR is a programmable gate driver module that enables the user to configure a variety of high energy motors which require three-phase gate drive control. The integrated features of the DRV8323RH-RGZR help simplify the design and reduce the bill of materials. It also offers a large number of protection features to protect against damage.

The main application fields of the DRV8323RH-RGZR motor driver are HVAC & Climate Control, Electrical & Industrial Automation, Home Appliances & Consumer Electronics, and Industrial Motors & Automotive. It can be used for controlling the motors in these applications such as in electric fans, pumps, compressors, blenders and drills, as well as various industrial and automotive applications such as power steering, coolant pumps, and reversing valves.

The DRV8323RH-RGZR utilizes DBIC2 technology to provide a TPS54x20-like three-phase low side gate driver with integrated pull-up and pull-down transistors. It also includes logic level translation, diagnostics, and SPI. The device has three N-channel MOSFET gate driver outputs, plus one additional output to control an optional fan drive or similar device. The DRV8323RH-RGZR is specified over an extended temperature range (Junction -55°C to +125°C) and can handle peak demand loads greater than 10A.

The working principle of the DRV8323RH-RGZR is fairly straightforward. It is an integrated circuit that contains three logic level gate drivers, three high-side gate drivers, 600V-rated MOSFETs and logic-level translation logic. This gate driver can independently control two or three N-channel MOSFETs. When the input signals on the pins (IN1_L, IN2_L and IN3_L) of the driver are logic level high (input voltages of greater than 1V), the MOSFETs are turned on and the motor starts to operate. When the input signals are logic level low (input voltages of less than 0.2V) the MOSFETs are turned off, and the motor stops.

Overall, the DRV8323RH-RGZR combines the best of both worlds: the integrated protection and diagnostics capabilities of high-voltage motor drivers, along with the convenience, affordability, and flexibility of integrated gate drivers. It is ideally suited for high-energy motor applications, making it an excellent and cost-effective solution for the above mentioned application fields.