No, that would be OK - even for continuous duty. With 150mA current, your Vce (saturation voltage) would be around 1 to 1.1v. Each channel would dissipate 1.1v x 0.15A = 165mW, for a total of 1.32W for all eight channels. This is well below the 1W/channel and 2.25W maximum for the package.so I take it would be impossible to have x8 12v 150mA LED array bulbs connected to a single uln2803 chip (assuming they are strobing very fast, but usually never all on at once)?
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