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HA13566AF
Combo (Spindle & VCM) Driver
ADE-207-250 (Z) 1st Edition December 1997 Description
The HA13566AF is combination of Spindle and VCM Driver designed for HDD and have following functions and features.
Functions
* * * * * * * * * * * * 1.0 A max/3-phase spindle motor driver 400 mA max VCM driver 100 mA max retract driver 11 bit serial interface 9 bit DAC for VCM control Commutation logic for sensor-less motor Center tap pull-up driver for half wave driver Soft switching matrix Charge pump Booster Power monitor OTSD
Features
* Low output saturation voltage Spindle driver 1.0 V typ (@0.8 A) 0.2 V typ (@0.1 A) VCM driver 1.0 V typ (@400 mA) * Soft switching drive * Minimum surface mount package body size 7 x 7 mm
HA13566AF
Pin Arrangement
SPNCOMP VREF2 CDELAY
TAB 17 16 15 14 13 12 11 TAB 10 9 8 7 123 TAB 4 56
RS VCMN VCMP CT
20 19 18 21 22 23 24 TAB
LVI1 RETOUT RETPOW
DACOUT POWGOOD CHAGPMP DATA
W V RNF PCOMP
25 26 27 28
CLK SERENAB COMM PHASE
U VCMIN VCC2
(Top view)
2
VB BC1 BC2
HA13566AF
Block Diagram
VCC2 3 C101
B - EMF Amps PHASE COMM 7 8 Commutation logic
EXTCOM
Soft switching matrix
SOFTSW BRAKE
U Spindle V driver W
1 26
D1 D2 D3 CT
25 24
CHAGPMP 12 VREF2 (1.25 V) R1 SPNCOMP C2 R2 C105 C106 VB 4 C1 5 6 16 17
Center tap pull-up
HALF
27 Charge pump
SPNENAB
RNF C102
Current control VCC2
D0
28 18
PCOMP RETPOW C108 RETOUT R101 RS C103
Booster
FBOOST RETRACT POWGOOD V CC
Retract 19 VCMP 23
VCMIN 2 DACOUT 14 DAC (9 bit)
VCC2 2 SPNENAB BRAKE HALF EXTCOM SOFTSW RETRACT FBOOST VCMENAB 1.25 V VCC2
P VCM Driver N
VCMN
R103 22 C104 21 R104 RS
CLK 10 (10MHz Max) DATA 11 SERENAB 9
Serial port (11 bit)
LVI
POR delay
20 LVI1
CDELAY C107
15
13 POWGOOD
TAB
3
HA13566AF
Serial Port
Construction
MD0 to MD9 SERENAB CLK DATA A0 Decoder Serial port D0 to D9 Mode Control Register A0 = 1 DD0 to DD9 Input Data Register for DAC & VCM A0 = 0 VCM Control Mode Control
Figure 1 Serial Port Data construction Input Data Construction
MSB A0 D9 D8 D7 D6 D5 D4 D3 D2 D1 LSB D0
for selecting register
Register Data
Figure 2 Input Data (1) The serial port is required the 11 bit data (D0 to D9 and A0). Address bit A0 is used to select the register as follows. When the data length is less than 11 bits, the internal register will not be up dated. And when the data length is more than 11 bits, this register will take late 10 bits and ignore the faster bit.
A0 0 1 Register Input data register of DAC & VCMGAIN Mode control register
4
HA13566AF
Mode Control Register (A0 = 1)
Bit MD0 MD1 MD2 MD3 MD4 MD5 MD6 MD7 MD8 MD9 Symbol SPNENAB BRAKE Not use HALF EXTCOM SOFTSW VCMENAB RETRACT POLESEL FBOOST 1 Spindle enable Brake enable -- Half wave drive External commutation Soft switching VCM enable Retracting for 12 poles motor Low frequency 0 Spindle disable Brake disable -- Full wave drive Internal commutation Switching VCM disable Not retracting for 8 poles motor High frequency 3 4 2 Note 1 1
Notes: 1. The spindle motor is independently winding to the value of the MD2, during the MD1 is true. 2. The bit MD4 select a commutation mode at driving by B-EMF sensing. (See Commutation timing) 3. In order to prevent the misdetection of back-EMF amplifier, the bit MD8 should be chosen as shown above table. 4. The bit MD9 determine the operating frequency of Booster Circuit. According to the frequency of Input CLK at pin 10, the value of MD9 should be chosen as shown below. CLK (at pin 10) 7.1 MHz to 10 MHz 4.0 MHz to 7.0 MHz MD9 0 1
Input Data Register (A0 = 0) Bit / DD0 to DD9: These input data are used to control the output current at VCM driver as shown follows.
MSB DD9 DD8 DD7 DD6 DD5 DD4 DD3 DD2 DD1 LSB DD0
VCMGAIN
Input data of DAC
Figure 3 Input Data (2)
5
HA13566AF
The data bit DD9 determine the transfer gain GVCM which is specified as the relationship between the input data at the input data register and the output current at VCM amplifier. (See the under table)
DD9 1 1 1 0 0 0 DATA 1FF 100 000 1FF 100 000 I O [mA] +199.2/RS 0.000 -200.0/R S +24.9/RS 0.000 -25.0/R S
Data Input Timing
SERENAB
Vth (= 1/2VCC2 Typ)
t1
t0 CLK Vth
t3
t2
Up date point t4 DATA Vth t5
Latch point
A0 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 t0 20ns t1 20ns t2 50ns t3 40ns t4 40ns t5 40ns
Figure 4 Input Timing on Serial Port
SERENAB t6 t6
Internal DAC output
t6 : Conversion time of DAC 1s
Figure 5 Conversion Timing on DAC
6
HA13566AF
Commutation Timing
Commutation for starting up
1/fCOMM COMM Delay PHASE Pulsewidth 10s
IU
+ 0 -
IV
+ 0 -
IW
+ 0 - Synchronous (0.2s to 0.3s) driving by B-EMF sensing
Note: 1. The frequency of COMM signal fCOMM can be designed as follows. fCOMM (max) = 2.5 P * KT * IO J P * KT * IO J (Hz) (for begin of synchronous driving) (1)
fCOMM (min) = 0.5
(Hz)
(for end of synchronous driving)
(2)
Where, P : Pole number of spindle motor (Hz) KT : Torque constant (kg * cm/A) IO : Start up current (A) J : Moment of inertia (kg * cm * S2)
7
HA13566AF
External Commutation Mode (Full Wave Drive)
U + B-EMF 0 - V W
PHASE 0 Delay *2 COMM 0
+ U-Current Switching mode 0 -
U-Current Soft switching mode
+ + 50 % 0 - 50 % -
Note: 2. Provided by MPU.
8
HA13566AF
External Commutation Mode (Half Wave Mode)
U + B-EMF (VCC) 0 - V W
PHASE 0
COMM 0
+ U-Current Switching mode 0 -
U-Current Soft switching mode
+ 0 - 50 % -
9
HA13566AF
Internal Commutation Mode (Full Wave Mode)
U V W
+ B-EMF 0 -
PHASE 0
COMM *3
0
U-Current Switching mode
+ 0 -
U-Current Soft switching mode
+
+ 50 %
0
- 50 %
-
Note: 3. When the internal commutation mode is selected, the commutation of the motor is automatically selected at the B-EMF sensing drive. But don't open the COMM terminal.
10
HA13566AF
Internal Commutation Mode (Half Wave Mode)
U + B-EMF 0 - V W
PHASE 0
COMM
0
U-Current Switching mode
+ 0 -
U-Current Soft switching mode
+ 0 -
- 50 %
11
HA13566AF
Application
C105 C101 R2 C2 C1
R1
VCC2 VCC2
C106 Spindle motor
D1 D2 D3
Booster U SPNCOMP VREF PHASE COMM CHAGPMP V W CT RNF
RNF
C102
Serial data
MPU
POWGOOD PCOMP CLK RETOUT DATA VCMP SERENAB
R101
RS
C103 R103
RL
DACOUT VCMIN
VCMN
C104 R104
RS CDELAY RETPOW TAB
C107
C108
12
HA13566AF
External Component
Parts No. R1 R2 R101 R103, R104 RNF RS C1, C2 C101 C102 C103, C104 C105 C106 C107 C108 D1, D2, D3 Recommended Value 47 k -- -- 2.2 0.2 0.47 -- 0.1 F 0.1 F 0.1 F 0.47 F 4.7 F -- -- -- Purpose Integral constant Integral constant Set retract current For stability Spindle current sense VCM current sense Integral constant Power supply bypass Phase compensation for spindle driver For stability For booster For booster POR delay Retpower filter For retract 4 1 3 Notes 1 1 2
Notes: 1. This integral constants can be designed as follows. 2NO O = 600 (3) R2 R1 = J O NO RNF 9.55Kt Gctl Vref2 1 10 O R2 (5) (6) (4)
C1 =
C2 = 10C1
Where, O = Time constant of servo loop NO = Rotation number (rpm) J = Moment of inertia (kg cm*s2) RNF = Current sense resistor () Gctl = Control gain (see electrical characteristics) Vref2 = Internal reference voltage (See electrical characteristics)
13
HA13566AF
2. The retract current is determined as follows. Vretpow - Vsatret Iret = R101 + RL + RS
(7)
where, RL = VCM coil Resistor. Vsatret = Retout saturation voltage (See electrical characteristics) 3. The motor start up current IO is determined as follows. IO = Vref1 RNF (A) (8)
Where, Vref1 = Current limiter reference voltage (See electrical characteristics) 4. The power on reset delay time is determined as follows. t POR = 105*C 107 (See electrical characteristics) (9)
14
HA13566AF
Absolute Maximum Ratings (Ta = 25C)
Item Power supply voltage Spindle current VCM current Retract current Input voltage Power dissipation (Ta = 65C) Power dissipation (Tc = 100C) Junction temperature Storage temperature range Symbol VCC2 Ispn Ivcm Iret Vin P T1 P T2 Tj Tstg Value 7.0 1.0 400 100 0 to V CC 1.0 2.0 150 -55 to +125 Units V A mA mA V W W C C 3 3 4 Notes 1 2 2 2
Notes: 1. Operating voltage range is 4.25 V to 5.75 V. 2. ASO of each output transistor is shown below. Operating locus must be with in the ASO. 3. Thermal resistance is shown below. j-c 25C/W j-a 80C/W 4. Operating junction temperature range is 0 to +125C.
4
t = 1 ms t = 10 ms
Collector Current IC (A)
t = 100 ms 1
0.5
0.1 1 5 10 20 Collector Emitter Voltage VCE (V)
Figure 6 ASO of Output Transistor (Spindle Driver)
15
HA13566AF
4 t = 1 ms t = 10 ms Collector Current IC (A) t = 100 ms 1
0.5
0.1 1 5 10 20 Collector Emitter Voltage VCE (V)
Figure 7 ASO of Output Transistor (VCM Driver)
16
HA13566AF
Electrical Characteristics (Ta = 25C, VCC = 5 V)
Item Supply current Logic input Input low current Input high current Input low voltage Input high voltage Clock frequency Logic output Output high voltage Output low voltage Spindle driver Total saturation voltage Output leak current Current limiter reference voltage Current control gain B-EMF amps Charge pump Input sensitivity Input high voltage Input low voltage Input high current Input dead current Input low current Output current Icer1 Vref1 Gctl Vmin VIHCP VILCP IIHCP IIDCP IILCP Charge current Discharge current Output cutoff current Reference voltage VCM driver VCM input resistor Output quiescent voltage Output leak current Total output saturation voltage Ioff Vref2 Rin Vq Icer2 Vsatvcm Symbol ICC1 IIL IIH VIL VIH fCLK VOH VOL Vsatspn Min -- -- -- -- 3.5 -- 4.4 -- -- -- -- 139 -14 -- 3.5 -- -- -- -- +44 -64 -- 1.32 42 VCC2/2 -- -- -- -150 +54 -54 -- 1.39 60 VCC2/2 +5% -- 1.0 0.8 Typ 15 0 -- -- -- -- -- -- 1.0 0.2 -- 155 -12 50 -- -- 150 Max 20 10 10 1.5 -- 10 -- 0.4 1.4 0.3 5 171 -10 -- -- 1.5 200 10 -200 +64 -44 50 1.46 78 VCC2/2 +10% 5 1.35 1.0 Units mA A A V V MHz V V V V mA mV dB mVp-p V V A A A A A nA V k V mA V V Ivcm=400mA Ivcm=200mA R1=24k 16 2 22, 23 VILCP=0V R1=24k R1=24k 17 VIHCP=5V 1, 25, 26 12 1 IOH =1mA IOL=1mA Ispn=0.8A Ispn=100mA MD3=1, VO=VCC+3V RNF =1.0 1, 25, 26 7, 13 Test Conditions Enable m ode VIL=0V VIH=5V Applicable Terminal 3 8, 9, 10, 11 Note
17
HA13566AF
Electrical Characteristics (Ta = 25C, VCC = 5 V) (cont)
Item VCM driver Resolution DAC output resistor Output current full scale Gain ratio Offset Symbol Ires Rout IFS1 IFS2 IFS1 / IFS2 Ioff1 Ioff2 Ioff3 Linearity Gain Bandwidth ILIN B Min -- -- 345 45 7.5 -- -- -- -- -- -- Retract driver Retpow voltage Vretpow 1.4 Typ 1/512 -- 385 50 8.0 -- -- -- -- 40 95 -- Max -- 50 425 55 8.5 15 20 80 1 -- -- -- Units -- mA mA -- LSB LSB LSB LSB kHz kHz V DD9=1, RS= 1, RL=14 DD9=0, RS= 1, RL=14 RS=1.0, RL=14 Iret=100mA Iret=100mA 18 1 DD9=1, RS= 1, RL=14 Ioff1x8-Ioff2 21, 22, 23 DD9=1, RS= 1, RL=14 Test Conditions Applicable Terminal 21, 22, 23 14 2, 14 2 Note 1
Retout saturation voltage LVI Operating voltage Recovery voltage POR OTSD Power on reset delay time Operating temperature Hysteresis
Vsatret Vsd Vrec POR Tsd Thys
-- 3.55 3.9 5 125 --
1.0 3.85 4.2 10 150 25
1.2 4.15 4.5 20 -- --
V V V ms C C
19 3 1
C107=0.1F
13 1
Note:
1. Design guide only 2. Specified by shorting between VCMIN and DACOUT.
18
HA13566AF
Package Dimensions
Unit: mm 9.0 0.2 7.0 20 15 9.0 0.2 21 14
28 1 0.32 0.08 0.30 0.06 6
7 0.13
M
0.65
0.17 0.05 0.15 0.04
1.40 1.70 Max
1.0 0.575 0 - 8
0.575
0.09 0.13 + 0.05 -
2.25 0.10 0.10
0.95 0.10 0.50 0.10
Hitachi Code JEDEC EIAJ Weight (reference value) FP-28T -- -- 0.2 g
Dimension including the plating thickness Base material dimension
19
Cautions
1. Hitachi neither warrants nor grants licenses of any rights of Hitachi's or any third party's patent, copyright, trademark, or other intellectual property rights for information contained in this document. Hitachi bears no responsibility for problems that may arise with third party's rights, including intellectual property rights, in connection with use of the information contained in this document. 2. Products and product specifications may be subject to change without notice. Confirm that you have received the latest product standards or specifications before final design, purchase or use. 3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However, contact Hitachi's sales office before using the product in an application that demands especially high quality and reliability or where its failure or malfunction may directly threaten human life or cause risk of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation, traffic, safety equipment or medical equipment for life support. 4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the Hitachi product. 5. This product is not designed to be radiation resistant. 6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi. 7. Contact Hitachi's sales office for any questions regarding this document or Hitachi semiconductor products.
Hitachi, Ltd.
Semiconductor & Integrated Circuits. Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan Tel: Tokyo (03) 3270-2111 Fax: (03) 3270-5109
URL
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Hitachi Semiconductor (America) Inc. 179 East Tasman Drive, San Jose,CA 95134 Tel: <1> (408) 433-1990 Fax: <1>(408) 433-0223 Hitachi Europe GmbH Electronic components Group Dornacher Strae 3 D-85622 Feldkirchen, Munich Germany Tel: <49> (89) 9 9180-0 Fax: <49> (89) 9 29 30 00 Hitachi Europe Ltd. Electronic Components Group. Whitebrook Park Lower Cookham Road Maidenhead Berkshire SL6 8YA, United Kingdom Tel: <44> (1628) 585000 Fax: <44> (1628) 778322 Hitachi Asia Pte. Ltd. 16 Collyer Quay #20-00 Hitachi Tower Singapore 049318 Tel: 535-2100 Fax: 535-1533 Hitachi Asia Ltd. Taipei Branch Office 3F, Hung Kuo Building. No.167, Tun-Hwa North Road, Taipei (105) Tel: <886> (2) 2718-3666 Fax: <886> (2) 2718-8180 Hitachi Asia (Hong Kong) Ltd. Group III (Electronic Components) 7/F., North Tower, World Finance Centre, Harbour City, Canton Road, Tsim Sha Tsui, Kowloon, Hong Kong Tel: <852> (2) 735 9218 Fax: <852> (2) 730 0281 Telex: 40815 HITEC HX
Copyright ' Hitachi, Ltd., 1999. All rights reserved. Printed in Japan.

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