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HA13565F
Three-Phase Brushless DC Motor Driver IC
ADE-207-226A (Z) 2nd. Edition April 1997 Description
HA13565F is a 3-phase brushless DC motor driver IC with digital speed control. It is developed for direct drive of the spindle motor of 5V floppy disk drives. It has the following functions and features.
Functions
* * * * * * 3 sensor 1.0A/phase, 3-phase drive circuit Digital speed control circuit Sensorless index circuit Current limiter circuit Over-temperature shutdown circuit (OTSD) Circuit for switching between 300 and 360rpm speeds
Features
* Low saturation voltage 0.5V Typ (at 0.7A) * Soft switching drive circuit * Small surface mount package
HA13565F
Pin Arrangement
Hall bias Bias(-)pin Bias(+)pin
TAB 17 16 15 14 13 12 11 TAB 10 9 8 7 123 TAB 4 56
V(+)input V(-)input W(+)input W(-)input
20 19 18 21 22 23 24 TAB
U(-)input U(+)input VCC
Bias output U phase output V phase output Current detection
AGC NC NC FG(+)input
25 26 27 28
W phase output Phase compensation Charge pump output CLK input
FG(-)input RPM control pin Index PC
(Top view)
2
Index TC Index output CEB
HA13565F
Pin Function
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Pin Name FG (-) input RPM control pin Index PC Index TC Index output CEB CLK input Charge pump output Phase compensation W phase output Current detection V phase output U phase output Bias output Bias (+) pin Bias (-) pin Hall bias VCC U phase (+) input U phase (-) input V phase (+) input V phase (-) input W phase (+) input W phase (-) input AGC NC NC FG (-) input Function FG amp. (-) input terminal Control terminal for motor rotation speed "H" 360 rpm, "L" 300 rpm Connection for the time constant circuit that adjusts the index circuit Vth level. Burst setting time constant circuit for index circuit Index signal output terminal (Open collector) Chip enable terminal "H": disable, "L": enable Reference clock input terminal Connection for the time constant circuit that integrates the speed error signal. Connection for the phase compensation capacitor that stabilizes the operation of the control system. W phase output Output current detection and terminal which is connected with resistor for current limiter. V phase output U phase output Smoothing circuit for the pumped output circuit Output circuit used for bias pumping Input circuit used for bias pumping Hall element bias input Power supply U phase (+) input terminal U phase (-) input terminal V phase (+) input terminal V phase (-) input terminal W phase (+) input terminal W phase (-) input terminal Smoothing circuit for hall amplifier output amplitude control No connection No connection Index amp (+) input terminal
3
HA13565F
Block Diagram
C105 VCC 14 R101 19 Hu 20 21 Hv 22 23 Hw 24 C102 25 17 C104 16 15 Rt2 Ct2 4 CEB 6 Time constant Vref2 0.63V Bias 3 Rt1 Ct1 AGC Index detection Vref1 0.175V Current control + - + - + - w OTSD 11 C106 9 W 10 v u Soft switch matrix U 13 18 VCC C101
V
12
Rnf
5 INDEX output RPM select 2 H : 360rpm L : 300rpm
CLK 7 1MHz 1.6V FG 60ppr C103 28 1 + - FG amp. 27 NC 26 NC
Discriminator
Charge pump
8 C1 R2 C2
TAB
4
HA13565F
Timing Chart
Hall Amp. Input vs. Output Voltage and Current
U + B-EMF 0 - V W
U + Hall amp. input 0 -
V
W
U + Output current 0 -
V
W
U
V
W
Output voltage
0 Note: 1. The input waveforms to the hall amp. should be sine waves with a third harmonic content of less than 20%.
5
HA13565F
Input Detection Timing RPM Control Pin = L
Magnetization reduced by 30% *1 + U phase hall amp. input Pin 19-Pin 20 0 - Pin 3 Hall amp. output *2
65 to 200mVpp
+ Index detection input 0 -
Index detection output-1 *2
0
Index detection output-2 *2
0
Index detection output-3 *2
0
FG amp. output *2
0 6.67 to 10ms (@300rpm) *3 3.33ms (@300rpm)
Index TC Pin 4
Vth2L 0 Burst adjustment
Index output Pin 5
0
Note: 1. To generate the index output, one pole of the main magnetization must be reduced so that a difference of at least 30% is assured at the Hall amp. input. 2. These waveforms are shown to indicate the principles of operation, and are not actual measured waveforms. 3. Burst adjustment is started by the fall of the index detector output 3, and then, it ends by the third of fall of FG amp. output. 4. Incorrect pulses may be output immediately after (i.e., within about 200ms of) start-up. 5. If the reduction in the magnetization is inadequate, the index signal may not be generated. Also note that excessive modulation of the Hall amp. input can cause incorrect pulses to be generated.
6
HA13565F
External Parts
Part No. R2 R101 Rnf Rt1 Rt2 C1, C2 C101 C102 C103 C104 C105 C106 Ct1 Ct2 Recommended Value -- -- 0.33 1M -- -- 0.1F 0.047F 0.47F 0.1F 0.1F 0.1F 0.1F -- Purpose Integration constant Hall bias Spindle current detection and current limitation Index circuit Vth adjustment Index burst adjustment Integration constants Power supply bypass AGC filter FG amp. AC coupling Bias pumping Smoothing for bias pumping Control amp. phase compensation Index circuit Vth adjustment Index burst adjustment 5 6 5 1 3 4 2 Notes 1
Notes: 1. Use the following formulas as a design target when determining the integration constants for actual systems. O R2 = C1 = 2 fFG 20 1 9.55 1 J O NO Rnf KT Gctl Icp 1 (rad/S) () (F) (F)
10 O R2
C2 = 10 C1
where, wO : Time constant of servo loop f FG : FG frequency (Hz) NO : Motor speed (rpm) J : Motor moment of inertia (kg * cm * s) KT : Motor torque constant (kg * cm / A) Rnf : Current detection resistance () Gctl : Control gain (see Electrical Characteristics) Icp : Charge pump output current (see Electrical Characteristics) 2. The current limiter operates according to the following formula. Vref1 IOMAX = (A) Rnf where, Vref1 is the current limiter reference voltage (see Electrical Characteristics)
7
HA13565F
3. Place as close to the IC as possible. 4. Determine C102 according to the following formulas. 200 C102 (F) NO * P C103 100 fFG (F)
where, P = Number of motor poles 5. The burst time t1 is defined as follows. (see Electrical Characteristics) t1 H = -Ct2 x Rt2 x ln (1 - Vth2H / Vhb) t1 L = -Ct2 x Rt2 x ln (1 - Vth2L / Vhb) where, Rt2 is resistance inter pin 4 and pin 17. 6. If the circuit is affected by noise, a large capacitance value should be set.
8
HA13565F
Absolute Maximum Ratings (Ta = 25C)
Item Power supply voltage Peak output current Normal output current Input voltage Power dissipation Junction temperature Storage temperature range Symbol VCC Iop Io Vi PT Tj Tstg Value 7.0 1.0 0.7 0 to V CC + 0.3 1.5 +150 -55 to +125 Unit V A A V W C C 2 3 1 Notes 1
Notes: 1. The operating range is as follows. VCC = 4.25 to 6.5 V Tjop = 0 to +125C 2. Applied to the logic input pin. 3. Permissible value when Tpin = 113C and thermal resistance is as follows: j-pin 25C/W j-a1 55C/W (when mounted on a metal substrate) j-a2 80C/W (when mounted on a glass epoxy substrate)
9
HA13565F
Electrical Characteristics (VCC = 5V, Ta = 25C)
Item Quiscent current Symbol I CCO I CC Logic input Input current (Pin 6) Input current (Pin 2) Input current (Pin 7) Input low voltage Input high voltage Index output Output low voltage Leakage current Hall amp. Input resistance Commonmode input voltage Differential input voltage Index detection threshold Output amp. Leakage current I CEB Min -- -- -- Typ -- 9 -- Max 0.45 13 80 Unit mA mA A Test conditions CEB=H, VCC=6.5V CEB=L, VCC=6.5V VCEB=0 to 5V 6 Applicable Pins 18 Note
I RPM
--
--
100
A
VRPM=0 to 5V
2
I CLK
--
--
320
A
Vclk=0 to 5V
7
VIL VIH VOL
-- 2.0 --
-- -- --
0.8 -- 0.4
V V V Io=2mA
2, 6, 7
5
I OH Rhi Vh
-- -- 2.0
-- 10 --
10 -- VCC - 0.5
A k V
V=7.0V 19 to 24
vh
65
--
200
mVpp
Vth1
80
--
90
%
I CER
-0.1 -0.1
-- -- 1.15 0.6
5 0.1 1.65 0.85
mA mA V V
Vo=7.0V Vo=0V Io=0.7A Io=0.35A
10, 12, 13
Saturation voltage
Vsat1 Vsat2
-- --
1
10
HA13565F
Electrical Characteristics (VCC = 5V, Ta = 25C) (cont)
Item FG amp. Input voltage range Noise margin Symbol vfg Min 2 Typ -- Max 20 Unit mVpp Test conditions Applicable Pins 1, 28 Note
nd nc
-- -- --
-- -- 1666.5
0.5 0.5 --
mVpp Vpp --
Differential noise Common noise RPM control pin=L
Speed discriminator and charge pump
Number of counts
N
-- Operating frequency Leakage current Output current f CLK Ioff Icp+ 0.9 -- --
1388.5 1.0 -- 10
-- 1.1 50 --
-- MHz nA A
RPM control pin=H 7 V8=0.8V Speed reduction full scale Acceleration full scale (Control start voltage) 8 11 (Rnf=0.33) 2 8
Icp- Current control Threshold voltage Voltage gain Current limitter voltage Index circuit Index TC input threshold voltage Vref2 Gctl Vref1
-- -- -- 157
-10 0.63 -10 175
-- -- -- 193
A V dB mV
Vth2L
--
0.65 x Vhb
--
V
RPM control pin=L
4
3
Vth2H Index TC Input current Itc
-- --
0.58 x Vhb --
-- 2
V A
RPM control pin=H
11
HA13565F
Electrical Characteristics (VCC = 5V, Ta = 25C) (cont)
Item Hall bias Output voltage Leakage current OTSD Operating temperature Hysteresis Symbol vhb Ihoff Min 1.9 -- Typ 2.2 -- Max 2.5 10 Unit V A Test conditions Ih=10mA, CEB=L CEB=H, Vh=7.0V, VCC=7.0V 4 Applicable Pins 17 Note
Tsd Thys
125 --
150 25
-- --
C C
Notes: 1. Total of sink and source. 2. Refer to the figure 1. Gctl = Vrnf / vcp. Vrnf Vref1 Vrnf 10mV 0 Vref2 Vcp Vcp
Figure 1
3. Refer to the timing chart. 4. At the delivery, this characteristics is not tested.
12
HA13565F
Characteristics Data
Quiescent Current vs. Power Supply Voltage 20
16 Quiescent Current ICC (mA)
12 TBD 8
4
0 2 3 4 5 6 Power Supply Voltage VCC (V) 7 8
Disenable Quiescent Current vs. Power Supply Voltage 1.0
Disenable Quiescent Current ICCO (mA)
0.8
0.6 TBD 0.4
0.2
0 2 3 4 5 6 Power Supply Voltage VCC (V) 7 8
13
HA13565F
Output Saturation Voltage vs. Output Current 2.0
Output Saturation Voltage VsatH & VsatL (V)
1.6
1.2 TBD 0.8
0.4
0 0 0.2 0.4 0.6 Output Current IO (A) Current Limiter Voltage vs. Rnf 200 0.8 1.0
190 Current Limiter Voltage Vrnf (V)
180 TBD 170
160
150 0.2
0.4
0.6 Rnf ()
0.8
1.0
1.2
14
HA13565F
Hall Bias Voltage vs. Hall Bias Current 2.5
2.0 Hall Bias Voltage Vhb (V)
1.5 TBD 1.0
0.5
0 0 4 8 12 Hall Bias Current Ih (mA) 16 20
Current limiter Voltage vs. Junction Temperature 200
190 Current limiter Voltage Vrnf (V)
180 TBD 170
160
150 0 25 50 75 Junction Temperature Tj (C) 100 125
15
HA13565F
Package Dimensions
Unit: mm
9.0 0.2
21 28 1 0.32 0.08 0.30 0.06 6
14
7 0.13
M
0.65
9.0 0.2 7.0 20 15
0.17 0.05 0.15 0.04
1.40 1.7 Max
1.0 0.575 0 - 8
0.575
0.09 0.13 + 0.05 -
2.25 0.1 0.10
0.95 0.10 0.50 0.10
Hitachi Code JEDEC Code EIAJ Code Weight FP-28TB -- -- 0.19 g
16
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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