March, 2019
www.us-
tech.com
National City, CA — TDK Corporation has intro- duced its
conduction-cooled TDK-Lambda
PFH500F-28 AC-DC power modules. The power supplies are rated at 28V, 504W, have a compact 4 x 2.4 in. (10.2 x 6.1 cm) footprint and include optional read/write programming and communica- tion through a PMBus™ interface. These third- generation power supplies are excellent for a vari- ety of applications that include COTS, power amplifiers, LED displays, and test equipment. The PFH500F-28 series utilizes GaN semicon-
ductors, bridgeless power factor correction, synchro- nous rectification and digital control, enabling effi- ciencies of up to 92 percent. Opto-couplers have been replaced by digital isolators for long-term reliability and stability. Accepting an 85 to 265 VAC
input, the modules deliver 28V at 18A and can be adjusted from 22.4 to 33.6V using the trim pin or PMBus interface. Baseplate cooling allows operation at temperatures ranging from –40 to +212°F (–40 to +100°C). The metal enclosure is encapsulated for MIL- STD-810G shock and vibration. Features and options include a 12V standby voltage with 200 mA (or
TI Intros Four New Tiny Data Converters
Dallas, TX — Texas Instruments (TI) has introduced four tiny, precise, data converters, each, reportedly, the smallest in its class. The new data converters enable designers to add more intelligence and functionality, while shrinking system board space. The DAC80508 and DAC70509 are eight-channel, precision, digital-to- analog converters (DACs) that pro- vide true 16- and 14-bit resolution, respectively. The ADS122C04 and ADS -
122U04 are 24-bit, precision, analog- to-digital converters (ADCs) that
TDK Introduces Conduction-Cooled AC-DC Power Modules
2.4W) capability, remote on/off, prebiasing start- up, droop mode current share, a DC-good signal, various protections (OVP, UVP, OCP, OTP) and a
Page 79
PMBus interface. The interface can be used to pro- gram the output voltage and fault management functions and monitor the unit’s operating status. The series has been certified to the
IEC/UL/CSA/EN 60950-1 safety standards (62368- 1 pending) and carries the CE mark for the Low Voltage and RoHS directives. Input-to-ground iso- lation is 2,500 VAC, input-to-output is 3,000 VAC
and output-to-case is 1,500 VDC. Contact: TDK-Lambda Americas, Inc., 401
Mile of Cars Way, Suite 325, National City, CA 91950 % 619-575-4400 E-mail:
tom.tillman@us.tdk-lambda.com Web:
www.tdk-lambda.com
PFH500F-28 AC-DC power module. See at APEC, Booth 811
Tiny, precision data converters.
include a two-wire, I2C-compatible interface and a two-wire, UART-com- patible interface, respectively. These new devices join a portfo-
lio of precision ADCs and DACs opti- mized for a variety of small-size, high-performance or cost-sensitive industrial, communications and per- sonal
electronics applications.
Examples include optical modules, field transmitters, battery-powered systems, building automation, and
wearables. Contact: Texas Instruments,
12500 TI Boulevard, Dallas, TX 75243 % 972-995-2011 Web:
www.ti.com
See at APEC, Booth 511
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