BA5956FM_1 Datasheet, PDF (5/6 Pages) Rohm – Power Driver For DVD Players

5/5
(16) This IC is a monolithic IC which has a P⁺ isolations and P substrate to isolate elements each other.
This P layer and an N layer in each element form a PN junction to construct various parasitic elements.
Due to the IC structure, the parasitic elements are inevitably created by the potential relationship.
Activation of the parasitic elements can cause interference between circuits and may result in a
malfunction or, consequently, a fatal damage. Therefore, make sure that the IC must not be used
under conditions that may activate the parasitic elements, for example, applying the lower voltage than
the ground level (GND, P substrate) to the input terminals.
In addition, do not apply the voltage to input terminals without applying the power supply voltage to the
IC. Also while applying the power supply voltage, the voltage of each input terminal must not be over
the power supply voltage, or within the guaranteed values in the electric characteristics.
<Supplemental Remarks>
Current feedback driver
The transfer gain (output current / input current) can be determined by the following equation:
g_m
=
Rd
+
1
RWIRE
(A/V)
Where R_WIRE represents a gold wire resistance inside the package, measuring approximately 0.075Ω
(±0.05Ω) (Typ.)
REV. A