Texas Instruments (TI) today introduced several new power management chips that enable designers to boost efficiency and shrink power-supply and charger solution sizes for personal electronics and handheld industrial equipment. Operating at up to 1 MHz, TI’s new chipset combines the UCC28780 active clamp flyback controller and the UCC24612 synchronous rectifier controller to help cut […]
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The down side of free samples
If you’ve had hassles trying to get component samples for a project, you can thank the efforts of a few enterprising students for making your life more complicated. Here’s a microcosm of what has happened with sample parts: The folks at Texas Instruments once had a liberal policy about giving out free samples of the […]
LLC resonant controller achieves 90 percent efficiency with a 10 percent load
The first in a family of new high-performance LLC controllers, TI’s new UCC256301 inductor-inductor-capacitor (LLC) resonant controller enables standby power of less than 40 mW when fully regulating the system output, while also performing better than industry efficiency requirements. By delivering the fastest transient response plus robust fault-protection features such as zero current switching avoidance, […]
40-A synchronous DC/DC buck converter with advanced-current-mode control topology said to be an industry first
Texas Instruments introduced the industry’s first 16-V input, 40-A synchronous DC/DC buck converter with an internally compensated advanced-current-mode (ACM) control topology supporting frequency synchronization. TI’s TPS543C20SWIFT converter provides enhanced efficiency by integrating its latest generation of low resistance high- and low-side MOSFETs into a thermally efficient small-footprint package. Designers can stack two converters side by side […]
Choosing a reference voltage for an ADC
Analog-to-digital converters (ADCs) need a reference voltage (VREF) input in order to operate properly. ADCs convert analog inputs that can vary from zero volts on up to a maximum voltage level that is called the reference voltage. The reference voltage determines the ceiling of what the ADC can convert, and is essentially the yardstick against […]
Choosing a reference voltage for an ADC
Analog-to-digital converters (ADCs) need a reference voltage (VREF) input in order to operate properly. ADCs convert analog inputs that can vary from zero volts on up to a maximum voltage level that is called the reference voltage. The reference voltage determines the ceiling of what the ADC can convert, and is essentially the yardstick against […]
Buck-boost battery charge controllers support Type-C and USB Power Delivery
Texas Instruments introduced a pair of highly flexible, single-chip buck-boost battery charge controllers for one- to four-cell (1S to 4S) designs. The bq25703A and bq25700A synchronous charge controllers support efficient charging through USB Type-C and other USB ports in end equipment ranging from notebooks and tablets to power banks, drones and smart home applications. Learn […]
GaN-based inverter reference design incorporates fast current-loop software
Texas Instruments (TI) today introduced an innovative three-phase, gallium nitride (GaN)-based inverter reference design that helps engineers build 200-V, 2-kW AC servo motor drives and next-generation industrial robotics with fast current-loop control, higher efficiency, more accurate speed, and torque control. Download the reference design today. The Three-Phase High-Frequency GaN Inverter Reference Design features TI’s newest LMG3410 600-V, 12-A […]
Reverse polarity protection: how can you provide it?
The reverse connection of a circuit to its DC power source, whether it’s a battery or power supply, can damage and even destroy the electronics. For this reason, many connectors are “keyed” to ensure correct connection. But there are many connections which are directly hard-wired using wires inserted into screw terminals, or ring or spade […]
BLDC gate drivers, power MOSFETs take up little PCB space
Today Texas Instruments (TI) introduced two new device families that help reduce size and weight in motor drive applications. When used together, DRV832x brushless DC (BLDC) gate drivers and CSD88584/99 NexFET™ Power Blocks require as little as 511 mm2, half the board space of competing solutions. The DRV832x BLDC gate drivers feature a smart gate-drive architecture that […]
