The automotive industry is undergoing unprecedented change, with the move to electrification and ongoing development in safety devices and autonomous vehicles resulting in an increased demand for semiconductors. DC motors are experiencing exponential growth in areas ranging from simple, low-power brushed versions to high-power brushless DC motors (BLDC). According to Allied Market Research, the Brushless DC motors industry will reach $72.24 Bn by 2030, compared to $33.15 Bn in 2020. This in turn increases the requirement for a variety of motor driver solutions.

Diodes Incorporated (Diodes) has developed two demo boards featuring its automotive ‘Q’ MOSFET and portfolio of gate driver ICs to target BLDC Motor applications in the automotive sector.

Single Channel Smart load switch provides a component and area-reducing solution for efficient power domain switching. In addition to integrated control functionality with ultra-low on−resistance (<15 mΩ), this device offers system safeguards and monitoring via the fault protection (Short circuit protection, SCP) and power good signal. This cost effective solution is ideal for power management and hot-swap applications requiring low power consumption in a small footprint.

The DIODES PAM8908 stereo headphone driver is designed for portable equipment where board space is at a premium. The PAM8908 uses a patented unique architecture to produce a ground-referenced output from a single supply, eliminating the need for large DC-blocking capacitors, saving cost, board space, and component height.

The DGD0280 is a high-speed, low-side, single gate driver with integrated LDO, capable of source current of 2.5A and sink current of 2.8A. Low-side gate drivers will optimally charge the gate of MOSFETs or IGBTs in a ground-based configuration.

The DGD0227, Dual 4.0A High-Speed Low-Side Gate Driver is used to optimally drive the gate of MOSFETs or IGBTs in a ground-based configuration.

Due to their superior efficiency, excellent controllability, and higher speed capabilities, brushless DC motors (BLDC) are one of the most widely used DC motors. These characteristics make BLDC suitable for many kinds of applications in a large variety of industries. Nowadays, BLDC motors are nearly everywhere and have a solid role in manufacturing and industrial applications as actuators and in CNC machine tools. Similarly, its efficiency has made it a popular choice for white goods, computer hard drives, electric and hybrid vehicles, and even medical equipment. In the automotive industry, its presence is expected to increase due to the growing number of electromechanical in-vehicle systems, including HVAC systems, fuel and water pumps, anti-lock braking systems (ABS), and power steering systems. This application note explains the main features of brushless DC motors, their control methodology, and how different aspects between BLDC and BDC motors compare.

Integrated load switches are electronic switches used in systems to turn power rails on and off, similar to a relay or a MOSFET. Integrated load switches provide many benefits, including protection features that are too difficult or complex to implement with discrete components.

The DIODES DGD2190M and DIODES DGD21904M are High-Side/Low-Side gate drivers that are used to optimally drive the gate of MOSFETs or IGBTs. The DGD2190M is an SO-8 package and the DGD21904M is an SO-14 package with a separate logic ground pin VSS; this can be used when required to separate power ground and logic ground.

This document discusses the case for using piezoelectric buzzers and piezoelectric buzzer drivers.

Note: Piezoelectric buzzers can also be referred to as piezoelectric horns or sounders, in this document they will be referred to as buzzers.

The DGD2184M and DGD21844M are half-bridge gate drivers that are used to optimally drive the gate of MOSFETs or IGBTs. T h e DGD2184M package is an SO-8 and the DGD21844M package is an SO-14 with a separate logic ground pin Vss. This can be used when required to separate power ground and logic ground.

In this discussion, the important parameters needed to design in the DGD2184M and DGD21844M are discussed.

The AL6562A is an active power factor control IC which is designed mainly for use as a pre-converter in electronic ballasts, AC-DC adapters and off-line SMPS applications.

The DGD2104M, half-bridge gate driver is used to optimally drive the gate of MOSFETs or IGBTs.

This document compares the LFPAK56 package to Diodes Incorporated’s PowerDI5060 package and provides a new footprint which can accommodate both devices while minimizing the copper area.

The DIODES DGD05473 and DGD0507A High Frequency, High-Side, Low-Side Gate Drivers in DFN3030-10 are used to optimally drive the gate of MOSFETs. The DGD05473/07A has an integrated bootstrap diode for ease of design and reduced BOM.

This document discusses the case for using piezoelectric buzzers and piezoelectric buzzer drivers

The DGD2181M and DGD21814M, High-Side/Low-Side gate drivers are used to optimally drive the gate of MOSFETs or IGBTs. DGD2181M package is SO-8. DGD21814M package is SO-14 with a separate logic ground pin Vss, this can be used when required to separate power ground and logic ground

The DIODES DGD05463 and DGD0506A high-frequency, half-bridge gate drivers with programmable deadtime are used to optimally drive the gate of MOSFETs. The DGD05463/06A respectively have an integrated bootstrap diode for ease of design and lower BOM.

The DIODESTM DGD2110/2113 are High Side/Low Side gate drivers used to optimally drive the gate of MOSFETs or IGBTs. For the DGD2110, the high-side floating well has a maximum operation of 500V; and for the DGD2113, the high-side floating well has a maximum operation of 600V.

The DIODES DGD0579U, High-side/Low-side gate driver with Integrated Bootstrap Diode is used to optimally drive the gate of MOSFETs. Below is an example application using DGD0579U with MOSFETs to make three Half-bridge circuits used to drive a BLDC motor. The DGD0579U is also well-suited to low voltage power supplies due to its high-speed performance. In this document, the important parameters needed to design in the DGD0579U are discussed. Main sections are bootstrap capacitor selection, gate driver component selection, decoupling capacitor discussion, and PCB layout suggestions.

The DGD0215/16 and DGD0211C are High-Speed, Low-Side Gate Drivers, capable of source current of 1.9A and sink current of 1.8A. Low-Side Gate Drivers will optimally charge the gate of MOSFETs or IGBTs in a ground-based configuration.