HA13557AFH 데이터 시트보기 (PDF) - Hitachi -> Renesas Electronics
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HA13557AFH Datasheet PDF : 28 Pages
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Pin Description
Pin Number Pin Name
1
VBST
2
VCMP
3
VCMN
4
BC2
5
BC1
6, TAB, 7 GND
8
W
9
RNF
10
PCOMP
11
CT
12
V
13
U
14
C-PUMP
15
CLREF
16
R1
17
Vpss
18, TAB, 19 GND
20
VSS
21
LVI1
22
DELAY
23
COMM
24
POLSEL
25
CNTSEL
26
CLOCK
27
READY
28
SPNENAB
29
POR
30, TAB, 31 GND
32
VCMENAB
33
GAIN
HA13557AFH
Function
Boosted voltage output to realize the low output saturation voltage
Output terminal on VCM driver
Output terminal on VCM driver
To be attached the external capacitor for booster circuitry
ditto
Ground pins
W phase output terminal on spindle motor driver
Sensing input for output current on spindle motor driver
To be attached the external capacitor for phase compensation of spindle
motor driver
To be attached the center tap of the spindle motor for B-EMF sensing
V phase output terminal on spindle motor driver
U phase output terminal on spindle motor driver
To be attached the external integral constants for speed control of spindle
motor
Reference voltage input for current limiter of spindle motor driver
To be attached the external resistor for setting up the oscillation frequency of
start-up circuitry and the gain of speed control loop of spindle motor driver
Power supply for spindle motor driver
Ground pins
Power supply for small signal block
Sensing input for power monitor circuitry
To be attached the external capacitor to generate the delay time for power on
reset signal
To be attached the external capacitor for setting up the oscillation frequency
To be selected the input status corresponding to the pole number of spindle
motor
To select the count Number of Speed Discriminator
Master clock input for this IC
Output of speed lock detector for spindle motor
To select the status of spindle motor driver
Output of power on reset signal for HDD system
Ground pins
To select the status of VCM driver
To select the Transfer conductance gm of VCM driver
3
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