TDK-Lambda extends PFH500F family with 12 and 48V models
Two models have been added to the 504W conduction cooled AC/DC power module series. The 12 and 48V output models have been added to TDK-Lambda’s PFH500F series of AC/DC power modules. The series, rated at 504W, can be conduction-cooled to a cold plate for outdoor applications.
The power modules can be programmed (read/write) or remotely monitored (read) through the industry-standard PMBus interface. The PFH500F series is suitable for used in COTS (commercial off the shelf) equipment, LED signage, power amplifiers, and test and measurement equipment.
The PFH500F-12 and PFH500F-48 use GaN semiconductors, bridgeless power factor correction and digital control to achieve efficiencies of up to 92 per cent. Digital isolators replace traditional optocouplers for long term stability and reliability, said the company.
Operating from a wide range 85 to 265V AC input, the PFH500F-12 delivers 42A at 12V with an adjustment capability of 9.6 to 14.4V using the trim pin or the PMBus interface. The PFH500F-48 delivers 10.5A at 48V and can be adjusted from 38.4 to 52.8V. The modules have a baseplate temperature range of -40 to +100 degrees C and measure 101.6 x 61.0 x 13.5mm.
Features available include droop mode current share, a 12V auxiliary standby output, remote on/off, remote sense, an open collector power good signal and output trim. The PMBus can be used to program the output voltage, activate the remote on/off, change the under/over-voltage, over-current and over-temperature set points, as well as read-back input and output current, input voltage and internal temperature.
The input to output isolation is 3,000V AC, input to case 2,500V AC and 1,500V DC output to case. Safety certification is to the IEC / UL / CSA / EN 62368-1 standards with CE and UKCA marking for the Low Voltage and RoHS Directives.
Fully populated evaluation boards are available for testing and development.
TDK was established in 1935 to commercialise ferrite, a key material in electronic and magnetic products. Today, its portfolio features passive components such as ceramic, aluminium electrolytic and film capacitors, as well as magnetics, high-frequency, and piezo and protection devices. The product spectrum also includes sensors and sensor systems such as temperature and pressure, magnetic, and MEMS sensors. In addition, TDK provides power supplies and energy devices and magnetic heads. These products are marketed under the product brands TDK, EPCOS, InvenSense, Micronas, Tronics and TDK-Lambda.
TDK focuses on demanding markets in automotive, industrial and consumer electronics, and information and communication technology. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America.
TDK-Lambda is a supplier of highly reliable power conversion products for industrial and medical equipment worldwide. It provides R&D, manufacturing, sales and service locations in five key geographic regions, namely Japan, EMEA, Americas, China and ASEAN.
