CD Driver

Overview

Each PlayStation motherboard contains a BTL-driver IC, driving the spindle motor, sled motor, focus coil and tracking coil. The inputs are driven by the DSP.

All of these are 4-channel BTL drivers.

They naturally run relatively warm (hence the large ground pads for heatsinking), but should never get too hot to touch (->IC or something connected to it is probably defective or shorted). All of these have thermal shutdown as a safety feature.

For the Rohm ICs, datasheets are available online.

ICs used

Rohm

• BA6398FP (PU-7, PU-8 (-11))
• BA6397FP (PU-8 (-21 and up), PU-16)
• BA6392FP / BA6392FP-E2 (PU-18)
• BA5977FP / BA5977FP-E2 (PU-20, PU-22, PU-23)
• BA5947FP / BA5947FP-E2 (PM-41)

Panasonic

• AN8732SB (PU-22, PU-23, PM-41)