HA13605A Datasheet, PDF (8/18 Pages) Hitachi Semiconductor – Three-Phase Brushless Motor Driver

HA13605A
External Components
Part No.
Recommended Value Purpose
Notes
R1, R2
—
Integration constants
1
R101, R102
—
Hall bias
9
R103, R104
—
FG amplifier gain setting
2, 8
R105, R106
10 kΩ
Used in interfacing
R107
4.7 kΩ
Booster stabilization
11
R108
—
Oscillator feedback resistor
10
R_NF
—
Current detection
3
C1, C2
—
Integration constants
1
C101, C102, C103 0.047 µF
Stabilization
C104
≥ 0.1 µF
Power supply bypass
C105
—
Determines the FG amplifier band
5
C106
—
FG amplifier AC coupling
6
C107, C108
—
Oscillator circuit elements
10
C109
≥ 300 pF
Booster capacitance
11
C110
≥ 47 µF
Stabilization
Ct
—
PWM oscillator time constant
4
X’tal
—
CLK oscillator
7
D1, D2, D3
—
Regenerative current path
D4
—
Used in interfacing
Notes: 1. Use the following formulas to determine target values for these constants.
ω_o
≤
2πf_FG
20
(rad/s)
R2 ₌ 7.7Jω_oNoRmVosc
R1 K_TV_R1 (2Vps – 0.83V_E)
3.0 kΩ ≤ R1 ≤ 15 kΩ
C1 =
1
1
10 ^• ω_oR2
(F)
C2 = 10C1
(F)
Where:
ωo: Control loop angular frequency
f_FG: FG frequency
J: Moment of inertia of the motor
No: Rotation speed
Rm: Motor coil resistance
K_T: Torque constant
V_E: Motor reverse voltage at speed No
Vps: Power supply voltage
Vosc: PWM oscillator amplitude
(Hz)
(kg•m²)
(rad/s)
(Ω/T•T)
(N•m/A)
(V_PP/T•T)
(V)
2.2 (V_PP: See the electrical characteristics table.)
8