Features
Power_electronics Features

Integrated GaN Power Stage for eMobility - issue 2/2020
Brushless DC (BLDC) motors are a popular choice and are finding increasing application in robotics, drones, electric bicycles, and electric scooters. All these applications are particularly sensitive...
More details...
Linear voltage regulators operate at automotive temperatures
Designed for high reliability, high temperature applications, the CMT-Antares is Cissoid's latest regulator.
More details...
Power Electronics Europe News
 
Configurable off-line switcher IC supports USB PD 3.0 PPS

The CV,CC and CP flyback switcher ICs also eliminate DC/DC post-regulators, adds the company.  

 

The ICs deliver up to 65W and achieve up to 94% efficiency across line and load conditions. Dynamically adjustable control of voltage (in 10mV steps) and current (in 50mA steps) is via a simple two-wire I2C interface. Devices may be paired with a microcontroller or take inputs from the system CPU to control and monitor the off-line power supply.

 

Applications include virtually any rapid-charging protocol, including USB Power Delivery (PD) 3.0 PPS, Quick Charge 4/4 , AFC, VOOC, SCP, FCP and other industrial and consumer battery chargers, dimmable LED ballast drivers and field-configurable industrial power supplies.

 

The power-conversion ICs have a microprocessor VCC supply, which eliminates the need for an external LDO to power the microcontroller. There is also an n-channel FET driver which may be used to enable or disable the main power output. Protection features include integrated bus voltage, current and fault-reporting telemetry and dynamically configurable protection such as one time programmability (OTP), line over voltage/ under voltage (OV/UV), output OV/UV, and short-circuit. These features can reduce the bill of materials and design complexity for a sophisticated offline power supply, says the company.

 

The IC is being introduced in response to the rapid transition in the AC/DC power conversion market, as system designers need a programmable solution that can adapt to a selection of fast-charging protocols including the recent USB PD 3.0 PPS specification. Controlling the output voltage and current of a power supply over a wide range is useful in the design of specialised applications with smaller production runs, as they can easily configure a single board design for multiple products, using software either at manufacture or during installation, points out the company. Target end applications are smartphones, notebooks, tablets, smart speakers and non-charging applications that require either a  load-controlled or configurable output.

 

The ICs employ proprietary FluxLink, plus synchronous rectification, quasi-resonant switching and a precise secondary-side feedback sensing and feedback control circuit.

 

Devices are CQC certified, UL recognised and TUV (EN60950) approved to bridge the isolation barrier. The InSOP-24D package also provides a low-profile, thermally efficient solution with extended creepage (11.5mm and above) and clearance between primary and secondary sides for high reliability, surge protection and ESD robustness.

 

Samples are available now.

 

 



View PDF
 
Go Back   
Newsletter sign up

Sponsors