HA13631T Datasheet, PDF (17/20 Pages) Hitachi Semiconductor – CD-ROM Combo Driver

Note:
1. Specified by sum of the upper and lower saturation voltages.
2. See figure 1. Where,
Dspn
=
∆D
∆Vctl
Reverse ^Vdzctl Forward
torque
torque
100
0
Vref
Figure 1
3. See figure 2. Where, x = fcs, trk, sld, try.
Dx
=
∆D
∆Vxin
∆D
∆Vctl
Vctl(V)
X = fcs, trk, sld, try
100
N
50
P _∆D
∆Vxin
0
Vref
Vxin
Figure 2
4. If Vref < 1.5 V, 100% PWM duty control may not be possible.
5. Design guide only.
HA13631T
17