Texas Instruments provides a recommended PCB layout in the DRV5023 application note (SLVAUH7) that includes guidelines for component placement, routing, and thermal management to ensure optimal performance and minimize noise.
The sense resistor value depends on the desired current sense accuracy and the maximum current expected in the application. A smaller sense resistor value provides better accuracy but increases power loss, while a larger value reduces power loss but decreases accuracy. TI recommends using the DRV5023 calculator tool to determine the optimal sense resistor value.
The DRV5023AJQDBZTQ1 has an operating temperature range of -40°C to 125°C, but the device's performance and accuracy may degrade at extreme temperatures. It's essential to consider the application's temperature range and potential thermal gradients when designing with this device.
The DRV5023AJQDBZTQ1 has built-in overcurrent protection, but it's still important to add external protection components such as TVS diodes and fuses to prevent damage from overvoltage and overcurrent conditions. TI recommends following the guidelines in the DRV5023 application note (SLVAUH7) for designing a robust protection scheme.
The DRV5023AJQDBZTQ1 is a surface-mount device and can be susceptible to vibration-induced failures. To ensure reliability in high-vibration environments, it's essential to follow proper PCB design and assembly guidelines, such as using a robust PCB material, securing the device with a suitable adhesive, and adding mechanical support structures if necessary.
DRV5023AJQDBZTQ1 datasheet
by Texas Instruments
