HA13558AFH Hitachi, HA13558AFH Datasheet - Page 3

• Manufacturer Part Number: HA13558AFH
• Description: CD-ROM Combo Driver
• Manufacturer: Hitachi

Pin Description
Pin No.
1
2
3
4
5
6
7
8, 9
10, 11
12
13
14
15
16
17
20
21
22
23
24
25
26, 27
28
29, 30
31
32, 33, 34
35
36
37, 39
Pin Name
VR1
AGC
REF
VCTL
BRKSEL
TRRIN
FCSIN
FCSN & P
TRRN & P
NC
COMPAIN
COMPAVTH
COMPAOUT
PHASE
VFCS
VSLD
SLDIN
CE
TRYDIR
TRYIN
SLDC
SLDP & N
SLDS
TRYP & N
RNF
W, V, U
PC
CT
BC2 & 1
Function
Reference voltage. The IC's internal reference current is determined by this
voltage and the external resistor Rref.
AGC for the soft switching function. Holds the level used for IC internal
processing fixed even if the B-EMF level fluctuates due to the rotation speed.
Reference voltage for the spindle control input, the FCS driver control input,
the TRR driver control input, and the SLD driver control input.
Spindle control input. Generates forward torque when a voltage higher than
REF is applied, and brake when a voltage lower than REF is applied.
To select the brake (L: Short brake, H: Reverse brake)
TRR driver control input. Takes the REF pin voltage as the reference.
FCS driver control input. Takes the REF pin voltage as the reference.
FCS driver output
TRR driver output
No connection
Amplitude detection comparator input. Connect either the FCS or TRR driver
output to this pin.
Amplitude detection comparator threshold setting input. (Vin = 0.3 to 1.8 V)
Amplitude detection comparator output
Outputs the B-EMF zero cross phase.
Power supply for the FCS driver, TRR driver, and control block
Power supply for the slide motor driver and tray motor driver
Slide control input. Takes the REF pin voltage as the reference.
Chip enable
Tray motor direction control
Tray motor drive PWM control input
Slide off timer time constant. The PWM off time is determined by the external
capacitor and resistor Csld and Rref.
Slide motor driver output
Slide driver current detection
Tray motor driver output
Spindle driver current detection
Spindle driver output
Spindle driver output
Spindle center tap
Booster pumping capacitor connection
HA13558AFH
3