HA13614FH Datasheet, PDF (5/26 Pages) Hitachi Semiconductor – Combo (Spindle & VCM) Driver

Block Diagram
HA13614FH
C113
CLK 37
1
128
Vss (+5V)
C112
R109
Vps (+12V)
C111
C116
Vss
VpsIN VpsOUT Vpss
4
23 19
31
30 28
BRK
BRKDLY
CLK
C114
25 ^CT
C101
C102
UFLT
33
NFLT
32
COMM 36
B-EMF
Amps
BRAKE
POR
OTSD
CLK
EXTCOM
Brake
control
Commutation
logic
V_BST
U
Spindle
driver
V
20 ^U
21 ^V
PHASE 35
SPN
GAIN
SPNCTL
(TESTOUT)
34
C103 ₂₉
Input
filter
FLTOUT
1.4V ref.
Selector
+ ^{OP Amp.1}
MASK
Current
control
(PWM)
V_BST
W
27 ^W
22 ^RNF
R_NF
26 ^ISENSE
17 ^Vpsv
C110
13 ^RETPOW
OP1IN(−) 2 −
OP1OUT 1
OP2IN(+) 3
TEST
+ ^{OP Amp.2}
−
OP2OUT 5
VCMIN 10
C104
44 ^VREF
C1
43 ^VIPWMH _PWM
42 ^{VIPWML decoder}
45 ^DACOUT
Vref(=5.3V)
SCLK 38
DATA 40
SEENAB 39
Serial
input
RESET
STANDBY _BIAS
SPNENAB
EXTCOM
BRAKE
VCMENAB
SOFTSW
TEST
SPNGAIN
Retract
driver
14 ^{RETSET R106}
C115
V_BST
+ _VCM ^P
− ^driver
N
VCMSLC ₁₂
VCMP ₁₁
R105
C109
R_S
PC ₆
R_L
VCMN ₈ R104 C108
VCMENAB
VCMPS ₇
Rs ₉
POW DWN
OTSD
Vss (+5V)
41 _12VGOOD
(Open Drain) R110
Vps Vss
Vss (+5V)
Power
monitor2
Vss
Power
monitor1
POR
delay
CLK
POR
(L: RESET)
48
V_BST
Booster 18 ^{VBST C107}
R103
TAB
Vps
LVI1
R101
47
24
LVI2 DELAY
R107 _Vdd
46
BC1
15
16 _BC2
(+12V)
R102 R108
(+3.3V) C105
C117
C106
5