AN8428GAK データシートの表示（PDF） - Panasonic Corporation

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AN8428GAK

For 3.5inch HDD Motor Comb IC

Panasonic Corporation 

■ Electrical Characteristics（Ta=25 ℃±2 ℃ unless otherwise specified ）

PARAMETER

SYMBOL Conditions

min typ max unit

［SPM block］

Total Output on

Resistance

Voltage Ratio

SPWMFLT/SISENH

Voltage at pin SISENH

for 100% duty cycle

Voltage at pin SISENH

for 50% duty cycle

Voltage at pin SISENH

for 5% duty cycle

Voltage at pin SISENH

for 0% duty cycle

［VCM block］

Rds( on)

KSP

V100

V50

V5

V0

Iout =2.7 A

－ 0.65 1.1

Ω

4.8 5.1 5.4 V/V

0.33 0.348 0.376

V

0.160 0.18 0.200

V

－ 0.018 0.026

V

－ 0.0 2.0 mV

Vretract Regulation

Irtrct2

Current Ratio between

MSB／LSB

Time of Crossover

Distortion

Symmetry VCM

Drivers

VCMP , VCMN

Linearity VCM

Drivers

VCMP , VCMN

Total Resistance

(Source＋Sink＋Isolation)

VCM Output Drivers

Offset Current

[Shock sensor]

Input Current of

Shock Sensor Amplifier

Gm of Shock Sensor

Amplifier

[3.3 V－Regulator]

Output voltage

Regulation

Load Regulation

VRET2

Irtrct2

Supply OFF

VBEMF=2V

VCM=10.5 Ω

0.55

15

Ratio

TCRO

31.5

Ramp Input

VCMINP 20 μs

－

Ratio

I2

I1

Ratio

=

I 2- I 0

I 1- I 0

I 2=I RVCM

at Duty Cycle =10%

I 1=I RVCM

at Duty Cycle=90%

RS=0.33,R 1=10k,R2=6.6k,

RL =10 Ω

I 2=IRVCM

at Duty Cycle =30%

I 1=IRVCM

at Duty Cycle=70%

I 0=IRVCM

at Duty Cycle=50%

RS=0.33,R 1=10k,R2=6.6k,

RL =10 Ω

0.93

0.97

RDSON25

－

0.87

80

32

2

1

1.0

1.0

1.15

130

32.7

5

1.07

1.03

1.5

V

mA

μs

mA/mA

mA/mA

Ω

VIPWMH& VIPWNL

Ios

at 50% Duty Cycle

RS=0.33, R1=10K,

-28 0

28 mA

R2 =6.6 K, R L=10 Ω

I SHKIN

Gmshk

-1

－

1

nA

-

5.9 -

mS

VCC3V3

3.168 3.33 3.49 V

ΔVLDR ILOAD=0～4mA

-

33

- mV

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