AN8428GAK Datasheet, PDF (4/4 Pages) Panasonic Semiconductor – For 3.5inch HDD Motor Comb IC

■ Electrical Characteristics（Ta=25 ℃±2 ℃ unless otherwise specified ）
PARAMETER
SYMBOL Conditions
min typ max unit
ï¼»SPM blockï¼½
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
ï¼»VCM blockï¼½
Rds( on)
K^SP
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 I^LOAD=0～4mA
-
33
- mV