HA13571FR Datasheet, PDF (3/22 Pages) Hitachi Semiconductor – Combo (Spindle & VCM) Driver for HDD

Block Diagram
HA13571FR
5V
0.1µF
34kΩ 470pF
12V
Rx
0.47µF
SLOPER
15
3
SLOPEC
SENU 26
SENV 25
SENWIS 24
SCNTL1 23
VCC5
16
SPWMTC VCCA12
5
27
VCCS12
8
SOFT
SWITCH
CONTROL
MPX
SLEEP
SOFT
−
+
−
+
−
+
SLEEP
U
V
W
VBST
LOGIC
DECODER
TAB
U
SPN
DRIVER
V
W
SCNTL2 22
ONE
SCNTL3 20
0.5VCC5
0.75VCC5
INDUCTANCE
MODE
SMODE 19
SMODE
COMP
PWM MODE
LINEAR
SHOT
ISENSE
AMP ⁺
−
ISENSE
SIPWM 18
SPWMFLT
17
0.25VCC5
PWM
DECODER
FILTER
−
+
ICOMP
−
+
0.9V
SOFT
−
+ _CONTROL
AMP
TSD
THERMAL
SHUT
DOWN
SLEEP
0.5VCC5
WDTIN 51
VPCNTL 36
0.5VCC5
WATCH DOG
TIMER
0.75VCC5
SLEEP SLEEP
VTRI- ^DISABLE
LEVEL
POR
RETRACT
DRIVER
SDRVN
78
SDRVU
80
SDRVV
1
SDRVW
72
75,76 ^SISINK
74 ^SISENH
Rnf
10 _SISENL
79 ^SCOMP
5V
2 TEMP
54 ^SHPWR
61 ^RETADJ
VREFOUT
37
VREFOUT ^SLEEP
4.0V
VREF 1.4V
VIPWML 34
VIPWMH 35
PWM
DECODER
FILTER
SLEEP
0.25VCC5
VBST
VCM ENABLE
VCCV12/2
VCM
DRIVER
55 ^VCCV12
63 ^VCMN
VCMP _Rs
56,57,58
Rf
47 _VISENL
Cf
60 ^VISENH
OSCTC
69
VBST
VREF 1.4V
52 ^VCMREF
5V
SBD1
BOOSTER
POWER
MONITOR
POR
DETECTOR
5/16 VCC5
5/32 VCCV12
POR
43 PORN
67 68 66 38,39 40 41 42
46 53
BST BST
CP2 CP2
BST VFLT VFLT VCM VISENS POR POR
FLT INP OUT INP
5V 12V
ADJ ADJ
45
11,14,21,29,
48,50,70,71
CPOR
C133
3