Three-Phase Brushless Motor Driver ADE-207-111B Edition July 1996

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Three-Phase Brushless Motor Driver ADE-207-111B Edition July 1996

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HA13536F
Three-Phase Brushless Motor Driver
ADE-207-111B Edition July 1996 Description
HA13536F 3-phase brushless motor driver with digital speed control. being developed direct drive spindle motor floppy disk drives with height 3/4" less. following functions features.
Functions
phase, 3-phase drive circuit (current driver) Digital speed control circuit Index circuit Current limiter circuit Over-temperature shutdown circuit (OTSD)
Features
saturation voltage, typically 1.15 Soft switching drive circuit need output snubber circuit
HA13536F
Arrangement
phase input phase input
phase phase phase phase
input input input input
Hall bias Bias Bias
Bias output phase output phase output Current detection
Index input Index input input
phase output Phase compensation Charge pump output input
input Index adjust
(Top view)
Index Vreg Index output
HA13536F
Block Diagram
C102 R101 R102 C104 C103 Note arrangement preliminary specification. Amp. Speed discriminator Charge pump Bias Vref2 Control Amp. Index circuit OTSD Current limitter Vref1 Index output (Open collector) C106 Hall Matrix Output C105 C101
Buffer Amp. select
HA13536F
Function
Number Name input RPMSEL Index adjustment Index Vreg Index output input C-PUMP output Function Amp. input terminal Change terminal motor rotation speed rpm, Terminal burst time index circuit Output terminal fixed voltage index circuit Index output terminal (Open collector) Chip enable terminal "L": enable, "H": disable input terminal Speed error Integration Phase compensation speed control Min, 0.14 Voltage
Phase compensation prevent parastic oscillation output, insert capacitor between phase output Current detection phase output Output current detection terminal which connected with phase compensation capacitor carrent control. phase output phase output Bias output terminal Bias terminal Bias terminal Hall bias terminal Bias, High impedance Power supply phase input terminal phase input terminal phase input terminal phase input terminal phase input terminal phase input terminal Hall output wave form adjustment terminal (Insert capacitor C102 between GND) 4.25 Min, Min, Min, Min, Min, Min, Min,
phase output phase output Bias output Bias Bias Hall bias
phase input phase input phase input phase input phase input phase input
HA13536F
Function (cont)
Number Name Index input Index input input Function Index input terminal Index input terminal input terminal Voltage Min, Min, bias
External Parts
Part Number R101 R102 C101 C102 C103 C104 C105 C106 Recommended Value 0.47 2fFG 9.55 Purpose Integration constant Hall bias Index hall bias Current detection limitation Index burst adjustment Index pulse width setting Integration constants Power supply bypass filter amp. coupling Bias Bias Phase compensation Index setting Notes
Notes: Determine integration constants from following formulas: (rad/s) ONO. KTGctl
10C1
HA13536F
above formulas: Time constant servo loop frequency Motor speed Motor moment inertia Motor torque constant Current detection Gctl Control gain (see Electrical Characteristics) Charge pump output current (see Electrical Characteristics) current limiter operates according following formula: IOMAX Vref1 where Vref1 current limiter reference voltage (see Electrical Characteristics) burst time defined follows: Rt1' Vth1 Vreg) (RPM select input low) Rt1' Vth1 Vreg) (RPM select input high) where Rt1' resistance value inter pin. Place close possible. Determine C102 C103 according following formulas: (µF) C102 C103 (µF)
where Number motor poles index pulse width determined follows: Rt2' (Vth1 Vth2) where Vth2 threshold voltage (see Electrical Characteristics). Rt2' (max) circuit affected noise, large capacitance value should set.
HA13536F
Timing Waveforms
Hall Input Output Voltage Current
Hall input
Output voltage*2
Output current
Notes: input waveforms hall should sine waves with third harmonic content less than 20%. Only phase output shown.
HA13536F
Index Input Output Application
Index input voltage Vth1 Vth2
Index output
Application
Index differential input voltage Index output Vth1 Vth2
HA13536F
Absolute Maximum Ratings 25°C)
Item Power supply voltage Input voltage Peak output current Normal output current Power dissipation Junction temperature Storage temperature range Symbol Tstg Value +150 +125 Unit Notes
Notes: operating ranges 4.25 Tjopr +125°C Applied CLK, pins. Permissible value when Tpin 113°C thermal resistance follows: j-pin 25°C/W j-a1 55°C/W (when mounted metal substrade) j-a2 80°C/W (when mounted glass epoxy substrade)
HA13536F
Electrical Characteristics 25°C,
Item Quiscent current Symbol Logic input Input current pin) Input current pin) Input current pin) Input voltage Input high voltage Logic output Output voltage Leakage current Hall Input resistance Commonmode input voltage range Differential input voltage range Output Leakage current 0.45 Unit Test conditions VRPM VCLK Nos. Notes
mVPP
CER(H) CER(L)
1.15
±100 1.65 0.85
mVPP
0.35
Saturation voltage
Vsat1 Vsat2
detector
Input voltage range Noise margin
mVPP
Differential Noise COMMON Noise
HA13536F
Electrical Characteristics 25°C, (cont)
Item Speed discriminator charge pump Number counts Symbol 1666.5 Unit Test conditions PRMSEL Nos. Notes
Operating frequency Leakage current Output current Ioff Icp+ Icp- Current control Threshold voltage Vref2 0.55
1388.5 0.63
0.71
PRMSEL Speed reduction full scale Acceleration full scale 0.47
Voltage gain Gctl Current limitter voltage Index circuit Input voltage (common) Input voltage (different) Hysteresis Input current Threshold voltage Vth1 Vref1
Vindex
Vindex
mVpp
0.60 Vreg 0.54 Vreg
0.64 Vreg 0.58 Vreg 0.54 Vreg 0.48 Vreg
0.68 Vreg 0.62 Vreg 0.58 Vreg 0.52 Vreg
select select RPMSEL
discharge Vth2 threshold voltage
0.50 Vreg 0.44 Vreg
RPMSEL -0.2
Bias Hall bias Output voltage
Vreg
HA13536F
Electrical Characteristics 25°C, (cont)
Item Hall bias OTSD Notes: Leakage current Symbol Ihof Unit Test conditions Nos. Notes
Operating temperature
Total sink source. figure Gctl Vrnf/Vcp. Refer timing chart. Design parameter only test).
Vrnf (Pin Vref1 Vrnf Vref2 pin)
Figure
HA13536F
Reference Data
Quiscent current (mA)
Current limitter voltage Vref1 (mV)
1.00
Quiscent current ICCO (mA)
0.75
0.50
ICCO
0.25
Power supply voltage
Output saturation voltage Vsat
Hall bias current (mA)
sink source source sink
Output current
Hall bias voltage
HA13536F
Mount Waveform Characteristics
Hall input div)
Output div) Charge pump output (0.5 div)
Phase compensation (0.5 div) Time div)
Index input (0.1 div)
Index Vreg div) Index adjust (0.5 div) Index output div)
Time div)
HA13536F
Package Dimensions
Unit:
0.13
0.65 0.17 0.05
2.25
0.22 0.08
0.95 Hitachi code EIAJ code JEDEC code FP-28T
Cautions
Hitachi neither warrants grants licenses rights Hitachi's third party's patent, copyright, trademark, other intellectual property rights information contained this document. Hitachi bears responsibility problems that arise with third party's rights, including intellectual property rights, connection with information contained this document. Products product specifications subject change without notice. Confirm that have received latest product standards specifications before final design, purchase use. Hitachi makes every attempt ensure that products high quality reliability. However, contact Hitachi's sales office before using product application that demands especially high quality reliability where failure malfunction directly threaten human life cause risk bodily injury, such aerospace, aeronautics, nuclear power, combustion control, transportation, traffic, safety equipment medical equipment life support. Design your application that product used within ranges guaranteed Hitachi particularly maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions other characteristics. Hitachi bears responsibility failure damage when used beyond guaranteed ranges. Even within guaranteed ranges, consider normally foreseeable failure rates failure modes semiconductor devices employ systemic measures such failsafes, that equipment incorporating Hitachi product does cause bodily injury, fire other consequential damage operation Hitachi product. This product designed radiation resistant. permitted reproduce duplicate, form, whole part this document without written approval from Hitachi. Contact Hitachi's sales office questions regarding this document 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
NorthAmerica http:semiconductor.hitachi.com/ Europe Asia (Singapore) Asia (Taiwan) Asia (HongKong) Japan further information write
Hitachi Semiconductor (America) Inc. East Tasman Drive, Jose,CA 95134 Tel: (408) 433-1990 Fax: <1>(408) 433-0223 Hitachi Europe GmbH Electronic components Group Dornacher D-85622 Feldkirchen, Munich Germany Tel: <49> (89) 9180-0 Fax: <49> (89) Hitachi Europe Ltd. Electronic Components Group. Whitebrook Park Lower Cookham Road Maidenhead Berkshire 8YA, United Kingdom Tel: <44> (1628) 585000 Fax: <44> (1628) 778322 Hitachi Asia Pte. Ltd. Collyer Quay #20-00 Hitachi Tower Singapore 049318 Tel: 535-2100 Fax: 535-1533 Hitachi Asia Ltd. Taipei Branch Office Hung Building. No.167, Tun-Hwa North Road, Taipei (105) Tel: <886> 2718-3666 Fax: <886> 2718-8180 Hitachi Asia (Hong Kong) Ltd. Group (Electronic Components) 7/F., North Tower, World Finance Centre, Harbour City, Canton Road, Tsim Tsui, Kowloon, Hong Kong Tel: <852> 9218 Fax: <852> 0281 Telex: 40815 HITEC
Copyright Hitachi, Ltd., 1999. rights reserved. Printed Japan.

Three-Phase Brushless Motor Driver ADE-207-111B Edition July 1996

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