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Transformers provide reinforced insulation power supply for RS-485/RS-232 transceiver ICs

Wed, 08/08/2012 - 10:01am

Pulse Electronics introduced a new series of high isolation switch mode power transformers that provide a reinforced insulation power supply for RS-485 and RS-232 transceiver ICs. The transformers are designed on an SMD platform with offset pins to maintain a large separation between primary and secondary circuits. Applications include industrial control systems, building automation, smart grid, surveillance, and aeronautics. The transformers facilitate using a RS-485/232 communications bus as a low cost alternative to Ethernet. They are compatible with the Maxim MAX253 power driver IC. In accordance with IEC60950/EN61558 the construction of the PH9185NL series has been certified by UL/TUV for reinforced insulation up to a 400-V working voltage. The design guarantees 8-mm creepage and 4000-Vrms isolation voltage to meet this requirement. The design also utilizes the company’s Class F insulation system. The  PH9185NL Series consists of seven turns ratios to provide the required voltage to the IC from a range of low voltage levels, delivering up to 3 W of power.

Pulse Electronics
858 674 8100, www.pulseelectronics.com

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