HA13565F データシートの表示（PDF） - Hitachi -> Renesas Electronics

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HA13565F

Three-Phase Brushless DC Motor Driver IC

Hitachi -> Renesas Electronics 

HA13565F

External Parts

Part No.

Recommended Value Purpose

Notes

R2

—

Integration constant

1

R101

—

Hall bias

Rnf

0.33Ω

Spindle current detection and current limitation 2

Rt1

1MΩ

Index circuit Vth adjustment

Rt2

—

Index burst adjustment

5

C1, C2

—

Integration constants

1

C101

≥0.1µF

Power supply bypass

3

C102

0.047µF

AGC filter

4

C103

0.47µF

FG amp. AC coupling

C104

≥0.1µF

Bias pumping

C105

≥0.1µF

Smoothing for bias pumping

6

C106

0.1µF

Control amp. phase compensation

Ct1

0.1µF

Index circuit Vth adjustment

Ct2

—

Index burst adjustment

5

Notes: 1. Use the following formulas as a design target when determining the integration constants for

actual systems.

ωO ≤

2π fFG

20

(rad/S)

1

R2 =

J ωO NO Rnf

(Ω)

9.55 KT Gctl Icp

11

C1 =

(F)

10 ωO R2

C2 = 10 C1

(F)

where,

wO : Time constant of servo loop

fFG : FG frequency (Hz)

NO : Motor speed (rpm)

J : Motor moment of inertia (kg · cm · s)

KT : Motor torque constant (kg · cm / A)

Rnf : Current detection resistance (Ω)

Gctl : Control gain (see Electrical Characteristics)

Icp : Charge pump output current (see Electrical Characteristics)

2. The current limiter operates according to the following formula.

Vref1

IOMAX = Rnf

(A)

where, Vref1 is the current limiter reference voltage (see Electrical Characteristics)

7

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