Overview
The DRV8332DKDR, produced by Texas Instruments, is a high-performance, integrated three-phase motor driver designed for robust and efficient motor control. This device is part of the DRV83x2 family, known for its advanced protection system and high-efficiency power stage. The DRV8332DKDR operates with a maximum supply voltage of up to 50 V and supports continuous phase currents of up to 8 A, with peak currents reaching 13 A. It is particularly suited for high-temperature applications, operating within a temperature range of -55°C to +175°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Supply Voltage | Up to 50 V | V |
| Continuous Phase Current | Up to 8 A | A |
| Peak Phase Current | Up to 13 A | A |
| PWM Operating Frequency | Up to 500 kHz | kHz |
| MOSFET Drain-to-Source Resistance (RDS(on)) | 80 mΩ at TJ = 25°C | mΩ |
| Ambient Operating Temperature | -40°C to 85°C | °C |
| Package Type | 36-Pin HSSOP (DKD) | |
| Thermal Resistance (Junction-to-Ambient) | 13.3 °C/W (with heat sink) | °C/W |
Key Features
- High-efficiency power stage with up to 97% efficiency and low RDS(on) MOSFETs (80 mΩ at TJ = 25°C).
- Independent control of three phases and support for PWM operating frequencies up to 500 kHz.
- Integrated self-protection circuits including undervoltage, overtemperature, overload, and short-circuit protection.
- Programmable cycle-by-cycle current limit protection and OC latching shutdown modes.
- Intelligent gate drive and cross-conduction prevention, eliminating the need for external snubber or Schottky diodes.
- Independent supply and ground pins for each half-bridge, facilitating current measurement through external shunt resistors.
- Error reporting through FAULT and OTW pins for system monitoring and control.
Applications
- BLDC (Brushless DC) motors.
- Three-phase permanent magnet synchronous motors.
- Inverters and half-bridge drivers.
- Robotic control systems.
Q & A
- What is the maximum operating supply voltage for the DRV8332DKDR?
The maximum operating supply voltage is up to 50 V.
- What are the continuous and peak phase current ratings for the DRV8332DKDR?
The continuous phase current is up to 8 A, and the peak phase current is up to 13 A.
- What is the maximum PWM operating frequency supported by the DRV8332DKDR?
The device supports PWM operating frequencies up to 500 kHz.
- What type of protection circuits are integrated into the DRV8332DKDR?
The device includes undervoltage, overtemperature, overload, and short-circuit protection circuits.
- How does the DRV8332DKDR handle error reporting?
Error reporting is handled through the FAULT and OTW pins, which signal various fault conditions such as overtemperature, overcurrent, and undervoltage protection.
- What is the significance of the independent supply and ground pins for each half-bridge?
These pins allow for current measurement through external shunt resistors and support half-bridge drivers with different power supply voltage requirements.
- What is the recommended thermal management for the DRV8332DKDR?
The device requires a heatsink to manage thermal dissipation effectively, with a specified junction-to-ambient thermal resistance of 13.3 °C/W (with heat sink).
- What are some common applications for the DRV8332DKDR?
Common applications include BLDC motors, three-phase permanent magnet synchronous motors, inverters, half-bridge drivers, and robotic control systems.
- What is the operating temperature range for the DRV8332DKDR?
The device operates within an ambient temperature range of -40°C to 85°C).
- What package type is the DRV8332DKDR available in?
The device is available in a 36-Pin HSSOP (DKD) package).
