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PDF HA13614 Data sheet ( Hoja de datos )
| Número de pieza | HA13614 | |
| Descripción | Combo (Spindle & VCM) Driver | |
| Fabricantes | Hitachi Semiconductor | |
| Logotipo |  |
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HA13614FH
Combo (Spindle & VCM) Driver
ADE-207-246D (Z)
Preliminary
5th Edition
October 1998
Description
This COMBO driver for HDD application consists of sensorless spindle driver and BTL type VCM driver.
“PWM soft switching function” for low power dissipation and less commutation acoustic noise at the same
time is implemented by using the IPIC* process.
Note: Intelligent Power IC
Features
• PWM soft switching drive
• Small surface mount package: FP-48T
• Low thermal resistance: 30°C/W with 4 layer multi glass-epoxy board
• Low output on resistance
Spindle 1.2 Ω Typ
VCM 1.4 Ω Typ
• TTL compatible input level (with 3.3 V logic interface)
• High precision reference voltage output (for 3.3 V power supply)
Functions
• 16 bit serial port
• 2.0 A Max/3-phase spindle motor driver with PWM soft switch function
• 1.5 A Max BTL VCM driver with low crossover distortion
• PWMDAC for VCM drive current control
• Power off brake function for spindle motor
• Auto retract with constant output voltage
• Booster
• Internal Protector (OTSD, LVI)
• Precision power monitor
• OP amplifier
1 page  
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
VBST
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)
VBST
W
27 W
22 RNF
RNF
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
VBST
+ VCM P
− driver
N
VCMSLC 12
VCMP 11
R105
C109
RS
PC 6
VCMN 8 R104 C108
RL
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
VBST
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
5 Page 
HA13614FH
Power on Reset (3)
Vss
Vps
POR
12VGOOD
Spindle
Driver
VCM
Driver
Retract
Driver
ON
OFF
ON
OFF
ON
OFF
tpor tpor
Figure 6 Operation of the Power Monitor (3)
11
11 Page | ||
| Páginas | Total 26 Páginas | |
| PDF Descargar | [ Datasheet HA13614.PDF ] | |
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