HA13566AF Datasheet, PDF (13/20 Pages) Hitachi Semiconductor – Combo (Spindle & VCM) Driver

HA13566AF
External Component
Parts No.
Recommended Value Purpose
R₁
R₂
R₁₀₁
R₁₀₃, R₁₀₄
R_NF
R_S
C₁, C₂
C₁₀₁
C₁₀₂
C₁₀₃, C₁₀₄
C₁₀₅
C₁₀₆
C₁₀₇
C₁₀₈
D1, D2, D3
≤ 47 kΩ
—
—
2.2 Ω
≥ 0.2 Ω
0.47 Ω
—
0.1 µF
0.1 µF
0.1 µF
0.47 µF
4.7 µF
—
—
—
Integral constant
Integral constant
Set retract current
For stability
Spindle current sense
VCM current sense
Integral constant
Power supply bypass
Phase compensation for spindle driver
For stability
For booster
For booster
POR delay
Retpower filter
For retract
Notes: 1. This integral constants can be designed as follows.
ω_O =
2πN_O
600
(3)
R_{2 =} J ω_O N_O R_NF
R₁ 9.55Kt Gctl Vref2
(4)
1
C₁ = _{10 ωO R2}
(5)
C₂ = 10C₁
(6)
Where,
ω_O = Time constant of servo loop
N_O = Rotation number (rpm)
J = Moment of inertia (kg cm•s²)
R_NF = Current sense resistor (Ω)
Gctl = Control gain (see electrical characteristics)
Vref2 = Internal reference voltage (See electrical characteristics)
Notes
1
1
2
3
1
4
13