The B58944 is primarily identified as an automotive engine drive chip or memory component used within ECU circuit boards. : NEC Corporation (now part of Renesas) .
A: Consult the Power Derating curve in the datasheet. At Tj max 150°C and Ta 25°C, if PD is 2W or less, it might survive without a heatsink. But “hot” implies power – use a heatsink. nec b58944 datasheet hot
: If the B58944 or the surrounding area becomes excessively hot to the touch, it typically indicates a internal short circuit or an external fault drawing too much current through the IC. The B58944 is primarily identified as an automotive