HA13571FR Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics

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HA13571FR

Combo (Spindle & VCM) Driver for HDD

Hitachi -> Renesas Electronics 

HA13571FR

External Components

Parts No.

R1, R2

R101

R102, R103

R106

R107

R108

Rnf

Rs

Rx, Ry

Rf

C101

C102

C103

C104

C105

C107

C108

C109

C110

C111

C112

C113

C114

C115

C116

C117

C118

C119

C120

C121

C131

C132

C133 *

Reccomended

Value

—

34 kΩ

—

100 kΩ

—

TBD

0.33 Ω

0.33 Ω

15 Ω

—

4.7 µF

470 pF

0.047 µF

1000 pF

0.22 µF

2.2 µF

2.2 µF

0.1 µF

390 pF

0.47 µF

0.47 µF

0.003 µF

1.0 µF

0.47 µF

—

0.47 µF

0.02 µF

TBD

0.01 µF

4.4 µF

220 pF

220 pF

4.7 µF

Purpose

Setting of Retract voltage

PWM time off for Spindle driver

Setting of VCM driver gain

Time constant for Soft switching

Phase compensation for VCM driver

for Watch dog timer

Current sensing for Spindle driver

Current sensing for VCM driver

for Filter VCCA12 and VCC5

Snubber for VCM driver

5V power supply by passing

PWM time off for Spindle driver

PWM filter for Spindle driver

PWM filter for VCM driver

Delay for POR

Capacitor for Retract voltage supply

for Booster

for Booster

Time constant for Oscillation

Phase compensation for Spindle driver

12V power supply by passing

Time constant for Soft switching

12V power supply by passing

12V power supply by passing

Phase compensation for VCM driver

Reference output by passing

Prevent from oscillation during PWM drive

for Watch dog timer

Reduction of noise from 12V power supply for VCM driver

Reduction of noise from 12V power supply for VCM driver

(Option) Filter for POR12VADJ

(Option) Filter for POR5VADJ

Reduction of noise from 12V power supply for VCM driver

11

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