Hhf28 Series High Reliability Dc Converters - China

1 - DESCRIPTION of HHF28 Series High Reliability DC/DC Converters The HHF28 Series of high voltage DC DC converter offers up to 15 watts of output power with high reliability.

The HHF28 series’ small size, light weight, and hermetically sealed metal packages make them ideal for use in aviation aerospace and other high reliability applications.

The HHF 28 series of converters use forward pulse width modulated topology design.

The operating principle is that the sampling signal of output voltage, coupled by the opto-coupler, works together with the sampling signal of input loop current to regulate the pulse width of the controller.

The double close loop control can create constant voltage output and short circuit protection.

The magnetic feedback technology can effectively prevent the magnetic saturation of transformer and also products reliability can be improved.

Thick film hybrid techniques provide the HHF28 Series of converters with reliability levels and optimum miniaturization.

The design and manufacturing process of HHF28 Series of converters are in compliance with General Standards of Hybrid Integrated Circuits and detailed standards of manufacturing.

Connected to a HFD-CE03 filter, the HHF Series of converters can achieve better electromagnetic compatibility (EMC) performance.

2 - ELECTRICAL PERFORMANCE of HHF28 Series High Reliability DC/DC Converters ABSOLUTE MAXIMUM RATINGS • Input Voltage: 16~44 • Power dissipation: 6W • Lead Soldering Temperature : 300°C (10 sec per lead) • Storage Temperature Range (Case): -55℃ ~ +125℃ • Inhibit voltage: ≤0.2V • Outside Sync.

Signal: Frequency Range: 450~600kHz Duty Cycle: 40%~60% TTL: 0.8≤V≤4.5V

Company Contact:

• Posted By: ECRIM

• Phone: 0551-63667943

• Address: NO.19 Hehuan Road, High-tech Zone, Hefei City, Anhui Province, China, hefei , anhui , China

• Email:

• Website: http://www.ecrimpower.com/

• Business Description: "ECRIM, founded in 1968, has more than 40 years experience in developing and manufacturing all kinds of microelectronic devices
  
  and electronic packages.
  
  There are our business sectors and three subsidiary companies, Hefei Shengda Electronics Technology Industry
  
  Company, Hefei Hengli eletek Co., ltd, and Shenzhen Ecrim Power Energy Technology Co., Ltd.
  
  ECRIM offer various types of DC/DC converters, SDC/RDC and DSC/DRC converters, modular power supplies,
  
  metal packages, ceramic submounts and substrates, industry furnaces and LED drivers etc.
  
  There are six production lines available, covering thick film circuits, LTCC, AIN-HTCC, metal packages.
  
  ECRIM has obtained quality and environmental management system certification such as ISO9001, ISO14001, ISO28001.
  
  Our products and services have been accepted and appreciated by overseas customers from many countries in the world.
  
  "