ISR2805DDRH 查看數據表（PDF） - M.S. Kennedy

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ISR2805DDRH

RADIATION HARDENED HIGH-POWER, HIGH EFFICIENCY DC-DC POWER CONVERTER

M.S. Kennedy 

TYPICAL SYSTEM OPERATION

A typical application shows the ISR2805DSKE connections to an arbitrary load. The remote

sense line is used to eliminate voltage drop in the positive distribution lead. The negative output

provides bias to hold the gate of FET drive transistors off in radiation environments. A FET crowbar

circuit is driven directly to discharge the filter capacitance at the load during shutdown. The two

resistors connected to the OVP and VOUT ADJ pins set the output over voltage limit and output

voltage to the required values. Also illustrated is a connection to synchronize two converters to a

master clock. An isolated connection is shown to inhibit both converter outputs from the primary

referenced input voltage as well as a secondary ON/OFF command referenced to the output to

shutdown the positive output.

8

PRELIMINARY Rev. - 3/01

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