Quiescent current, or IQ for short, is one of the most critical design concepts for power supply designers to master. IQ, or the amount of current when your IC is in a no-load or non-switching state, may be an easy concept to digest at first, but can come with tradeoff decisions. The resources below can help demystify IQ, as well as provide a path forward with TI’s new starting line-up of ultra-low power management ICs.
Keep these resources in your toolbox, and come back often to ensure you’re effectively optimizing your whole power tree for optimal system lifetime
Power over Ethernet technology (PoE) is an ubiquitous technology for powering Ethernet connected end equipments that may typically require licensed personnel to install, such as connected lighting, wireless access points, 5G remote radio units and more. As a standard-driven IC technology, suppliers can rest easy that IEEE 802.3 compliant portfolios offer solutions at both the source and input to loads that are fully interoperable and include many features to empower greater flexibility and reliability.
For noise-critical portable applications, such as GPS receivers, connectivity, and sensing, power supply designers always had to choose between longer battery run time (from higher efficiency) or higher signal chain performance (from the increased sensor sensitivity possible with a quieter power supply). For line-powered industrial or communications equipment applications, designers have been forced to dissipate significant amounts of power in LDOs to achieve the desired noise performance. Achieving both low noise and high efficiency was impossible.
This is a qualitative overview of the control of Switched Mode Power Supplies.
Battery life cycle is a key for high-cell-count battery pack-based end-equipment. Low quiescent current (Iq) consumption of DC-DC converters is a major feature that helps achieve longer battery life cycles. TI’s latest buck converters boast low Iq consumption as they maintain high efficiency in the active mode (heavy loads) as well as extend battery life during standby modes. This training will cover an overview of battery powered industrial applications and the specific power consumption requirements for these end equipments.
Voltage supervisors increase the system reliability and robustness by ensuring that power rails are active only during stable power supply. This is achieved through functions such as: precise voltage monitoring, over-voltage protection, power failure indicator, processor monitoring, power sequencing, battery backup, and reset latching.
In this series, you will learn about the:
The topics will cover system design issue and solution for Building Automation, Power Delivery and Test & Measurement. TI experts introduce the latest technology and innovation system reference design. Discover ways to enhance the time-to-market and create safer and efficient industrial systems.
Download presentation and view recorded sessions from 2018 Battery Management Deep Dive technical training.
TI has a variety of both analog and digital sequencers and system health monitors used in a wide variety of applications. Our analog LM388X sequencers are simple to use and easy to design with, to ensure systems consisting of 3 to 9 rails are powered up and powered down in the proper order. The UCD90XXX family of PMBus / I2C addressable digital power supply sequencers are for more complex systems, and enable sequencing up to 32 rails (or more when devices are cascaded).
DC/DC Power Modules are best known for being compact, highly-integrated power supply design options. This training series examines some of the lesser-known advantages of TI power modules:
- How do Power Modules simplify power supply design?
- Inductor withstand voltage
- High temperature storage testing
The Ethernet ecosystem is evolving with the introduction of the IEEE 802.3bt standard. Regardless if you’re an expert in PoE or just getting introduced to the technology, the below trainings provide a good starting point for understanding how TI’s portfolio of 802.3bt Powered Devices (PDs) and Power Sourcing Equipment (PSE) Controllers can be used in traditional and emerging Ethernet applications.
Watch this video to hear from Akio Nishida, Power Module expert from Murata and Tomomasa Emoto, GaN technology expert from Texas Instruments - on how GaN is enabling the future of power electronics.
Learn common design applications, as well as previous obstacles faced in GaN design that are now being addressed. To start your design, visit ti.com/GaN.
In this 3 part series, we will discuss PCB Layouts for Switched Mode Power Supplies. The purpose of these videos will be to give the designer some insight into the issues that need to be considered when laying out a PCB. Topics that will be discussed in these videos include schematic diagrams, parasitic components formed in a PCB layout, effects on EMI, and examples of real TI reference designs.