HA13571FR Datasheet, PDF (15/22 Pages) Hitachi Semiconductor – Combo (Spindle & VCM) Driver for HDD

HA13571FR
Electrical Characteristics (cont)
Item
Symbol Min Typ Max Unit Test Conditions
Applica-
ble pins
Note
SPN Total output
Vsatspn —
output saturation voltage
drivers
1.1 1.4 V
Iout = 1.2A, Tj = 25°C
SDRVU
SDRVV
SDRVW
—
2.0 2.6 V
Iout = 2.2A Tj = 25°C
—
2.6 3.74 V
Tj = 125°C
1
Leakage current Icex1 —
—
0.1 mA VIN = 14V
SDRVU
SDRVV
SDRVW
Icex2 —
Ifrdu
—
0.6 1.2 mA Test source current
from middle phase
R_L = 11Ω/phase
—
20
mA Vfrdu = 2.0V,
Vcc12 = 0V
Recirculating
Vfrdl1 —
1.25 1.4 V
If = –1.0A
1
diode forward
voltage
Vfrdl2 —
1.75 2.2 V
If = –2.2A
Overvoltage
Vclp
protection clamp
14.4 15.4 17
V
Iclp = 100mA
SPN Input current
Iin
—
—
±300 µA Vin = –0.3 to Vcc5
PWM
DAC &
filter
SIPWM
High level voltage Vh
3.5
—
—
V
Low level voltage Vts
—
—
1.5 V
PWM pulse width Tpwm 23
—
—
ns
Output resistance Rsout —
at Spwmflt
34
±20% kΩ
SPWMFLT
Output voltage
Vflt100 —
1.79 ±10% V
Duty = 100%
Vflt50 —
0.93 ±10% V
Duty = 50%
Vflt0
—
50
100 mV Duty = 0%
PWM
one
shot
Sink current
Isk
410 580 750 µA Spwmtg = 3.0V
SPWMTC
Low clamp voltage Vclmp 1.33 1.53 1.73 V
for discharging
Threshold voltage Vthst
3.0
3.3 3.6 V
for discharging
Vthend 1.47 1.67 1.87 V
for charging
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