Other Parts Discussed in Thread: SN6507
Tool/software:
Dear TI,
there's an application that calls for an isolated power supply. The input voltage is 24 V (from an SMPS) and it should have dual outputs, eg. +15 VDC and -15 VDC. Theoretical max. output current should be at least 157.5 mA and with 20 % margin the max current would then be about 197 mA.
The total output power would then be about 15 V * 0.197 A * 2 = 5.91 W.
I'm interested in the UCC25800-Q1 part, but think these power output levels are uncomfortably close to its rated power of 6 W.
My question is: is it possible to increase the output power of the UCC25800-Q1 by adding external power transistors to its SW pin? Say, an npn/pnp pair of bipolar transistors (MJD31/-32, etc.) in emitter follower configuration. Or N-/P-channel pair of MOSFETs in source-follower configuration. Would this be feasible?
If such hacks are not possible/feasible, could you recommend some other part with higher output power (>6 W)?
Thank you in advance.
