UCC29002DR1 290021 Load Share Controller PMIC 8-SOIC
Description
The UCC39002 device is an advanced, highperformance, and low-cost
load share controller that provides all necessary functions to
parallel multiple independent power supplies or DC-to-DC modules.
Targeted for high-reliability applications in server, workstation,
telecom, and other distributed power systems, the controller is
suitable for N+1 redundant systems or high current applications
where off-theshelf power supplies must be paralleled. The BiCMOS
UCC39002 is based on the automatic master or slave architecture of
the UC3902 and UC3907 load share controllers. The device provides
better than 1% current share error between modules at full load by
using a very low offset post-packagetrimmed current sense amplifier
and a high-gain negative feedback loop. And with the amplifier’s
common-mode range of 0 V to the supply rail, the current sense
resistor, RSHUNT, can be placed in either the GND return path or in
the positive output rail of the power supply.
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