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HA13536F
Three-Phase Brushless DC Motor Driver IC
ADE-207-111B (Z) 3rd Edition July 1996 Description
The HA13536F is a 3-phase brushless DC motor driver IC with digital speed control. It is being developed for direct drive of the spindle motor of 5 V floppy disk drives with a height of 3/4" or less. It has the following functions and features.
Functions
* * * * * * 1.0 A per phase, 3-phase drive circuit (current driver) Digital speed control circuit FG Amp Index circuit Current limiter circuit Over-temperature shutdown circuit (OTSD)
Features
* Low saturation voltage, typically 1.15 V (at 0.7 A) * Soft switching drive circuit * No need for an output snubber circuit
HA13536F
Pin Arrangement
U phase - input U phase + input VCC
V phase V phase W phase W phase
+ - + -
input input input input
20 19 18 21 22 23 24 TAB
TAB
17 16 15 14 13 12 11 TAB 10 9 8 7
Hall bias Bias - pin Bias + pin
Bias output U phase output V phase output Current detection
AGC Index + input Index - input FG + input
25 26 27 28 123 TAB 4 56
W phase output Phase compensation Charge pump output CLK input
FG - input RPM SEL Index adjust
(Top view)
2
Index Vreg Index output CE
HA13536F
Block Diagram
VCC C102 25 R101 Hu R102 Hv 19 20 21 22 Hw 23 24 Hi 26 27 3 Rt1 Ct 4 Rt2 17 - 16 C104 15 CE 6 CLK 7 1 MHz 1.6 V FG 60 ppr C103 TAB Note : Pin arrangement is preliminary specification. 28 1 FG Amp. + - Speed discriminator Charge pump Bias Vref2 u (+) u (-) v (+) v (-) w (+) w (-) (+) Control Amp. (-) Index circuit OTSD - + Current limitter Vref1 9 5 Index output (Open collector) C106 11 W 10 Rnf Hall Amp Matrix U Output Amp V 13 C105 14 18 VCC 5V C101
12
+ Buffer Amp. 2 8 C1 RPM select H: 360 rpm L: 300 rpm C2 R2
3
HA13536F
Pin Function
Pin Number Pin Name 1 2 3 4 5 6 7 8 9 10 11 FG (-) input RPMSEL Index adjustment Index Vreg Index output CE CLK input C-PUMP output Function FG Amp. (-) input terminal Change terminal for motor rotation speed "L" 300 rpm, "H" 360 rpm Terminal to set up burst time of index circuit Output terminal for fixed voltage of index circuit Index output terminal (Open collector) Chip enable terminal "L": enable, "H": disable CLK input terminal Speed error Integration and Phase compensation of speed control VTH = 1.4 V Typ 0 V Min, 1.2 V Max 1.5 V Typ VOL = 0.14 V Typ (@I O = 2 mA) VTH = 1.4 V Typ VTH = 1.4 V Typ Pin Voltage
Phase compensation To prevent the parastic oscillation of output, insert the capacitor between pin 9 and pin 11. W phase output Current detection W phase output Output current detection and terminal which is connected with phase compensation capacitor for carrent control. V phase output U phase output Bias output terminal Bias (+) pin terminal Bias (-) pin terminal Hall bias terminal CE = "L" Bias, CE = "H" High impedance 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 Hall amp output wave form adjustment terminal (Insert capacitor C102 between GND) 2.2 V Typ (@I = 10 mA) 4.25 V Min, 6.5 V Max 2.0 V Min, VCC - 0.5 V Max 2.0 V Min, VCC - 0.5 V Max 2.0 V Min, VCC - 0.5 V Max 2.0 V Min, VCC - 0.5 V Max 2.0 V Min, VCC - 0.5 V Max 2.0 V Min, VCC - 0.5 V Max
12 13 14 15 16 17
V phase output U phase output Bias output Bias (+) pin Bias (-) pin Hall bias
18 19 20 21 22 23 24 25
VCC U phase (+) input U phase (-) input V phase (+) input V phase (-) input W phase (+) input W phase (-) input AGC
4
HA13536F
Pin Function (cont)
Pin Number Pin Name 26 27 28 Index (+) input Index (-) input FG (+) input Function Index amp (+) input terminal Index amp (-) input terminal FG amp (+) input terminal Pin Voltage 1.4 V Min, VCC - 0.5 V Max 1.4 V Min, VCC - 0.5 V Max DC bias 1.6 V Typ
External Parts
Part Number R2 R101 R102 Rnf Rt1 Rt2 C1, C2 C101 C102 C103 C104 C105 C106 Ct Recommended Value -- -- -- -- 0 to 50 k 100 k -- 0.1 F 0.1 F 0.47 F 0.1 F 0.1 F 0.1 F 0.1 F 2fFG 20 1 9.55 Purpose Integration constant Hall bias Index hall bias Current detection and limitation Index burst adjustment Index pulse width setting Integration constants Power supply bypass AGC filter FG amp. coupling Bias Bias Phase compensation Index setting 7 4 3, 6 1 4 5 5 2 3 Notes 1
Notes: 1. Determine the integration constants from the following formulas: O R2 = C1 = (rad/s) J ONO. Rnf () KTGctl Icp (F) (F)
1 1 10 OR2
C2 = 10C1
5
HA13536F
In the above formulas: O = Time constant of servo loop f FG = FG frequency in Hz NO = Motor speed in rpm J = Motor moment of inertia in kg*cm*s2 KT = Motor torque constant in kg*cm/A Rnf = Current detection in Gctl = Control amp gain (see Electrical Characteristics) Icp = Charge pump output current (see Electrical Characteristics) 2. The current limiter operates according to the following formula: IOMAX = Vref1 (A) Rnf where Vref1 is the current limiter reference voltage (see Electrical Characteristics) 3. The burst time t1 is defined as follows: t1 - Ct x Rt1' x ln (1 - Vth1 (L) / Vreg) (RPM select input low) t1 - Ct x Rt1' x ln (1 - Vth1 (H) / Vreg) (RPM select input high) where Rt1' is resistance value inter 3 to 4 pin. 4. Place as close to the IC as possible. 5. Determine C102 and C103 according to the following formulas: 200 (F) C102 > NOP C103 > 100 fFG (F)
where P = Number of motor poles 6. The index pulse width t2 is determined as follows: t2 - Ct x Rt2' x ln (Vth1 / Vth2) where Vth2 is the threshold voltage (see Electrical Characteristics). Rt2' : Rt1 (max) + Rt2 7. If the circuit is affected by noise, a large capacitance value should be set.
6
HA13536F
Timing Waveforms
Hall Amp Input vs. Output Voltage and Current
U + Hall amp input
*1
V
W
0 -
VCC
U
Output voltage*2 0
+ Output current *2 0 -
U
Notes: 1. The input waveforms to the hall amp should be sine waves with a third harmonic content of less than 20%. 2. Only the U phase output is shown.
7
HA13536F
Index Amp Input vs. Output * Application 1
+ 20 to 100 mV Index amp input 0 20 to 100 mV - Pin 3 voltage Vth1 0 VCC Vth2 t1 t2
Index output
0
* Application 2
+ 20 to 100 mV Index amp differential input 0 20 to 100 mV - Pin 3 voltage Index output Vth1 0 VCC Vth2 t1 t2
0
8
HA13536F
Absolute Maximum Ratings (Ta = 25C)
Item Power supply voltage Input voltage Peak output current Normal output current Power dissipation Junction temperature Storage temperature range Symbol VCC Vin I OP IO PT Tj Tstg Value 7 0 to V CC + 0.3 1.0 0.7 1.5 +150 -55 to +125 Unit V V A A W C C 3 1 Notes 1 2
Notes: 1. The operating ranges is: VCC = 4.25 to 6.5 V Tjopr = 0 to +125C 2. Applied to the CE, CLK, and RPM SEL pins. 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 substrade) j-a2 80C/W (when mounted on a glass epoxy substrade)
9
HA13536F
Electrical Characteristics (Ta = 25C, VCC = 5 V)
Item Quiscent current Symbol I CCO I CC Logic input Input current I I1 (6 pin) Input current I I2 (2 pin) Input current I I3 (7 pin) Input low voltage Input high voltage Logic output Output low voltage Leakage current Hall amp Input resistance Commonmode input voltage range Differential input voltage range Output amp Leakage current VIL VIH VOL I OH Rhi VH Min -- -- -80 -2 -2 0 2.0 -- -- 7 2.0 Typ -- 9 -- -- -- -- -- -- -- 10 -- Max 0.45 13 2 100 450 0.8 5.5 0.4 10 13 Unit mA mA A A A V V V A k I O = 2 mA VCE = 7.0 V 19 to 24 5 Test conditions CE = H, VCC = 6.5 V CE = L, VCC = 6.5 V VCE = 0 to 6.5 2, 6, 7 V VRPM = 5.5 V VCLK = 5.5 V Pin Nos. 18 Notes
VCC - 0.5 V
Vh
30
--
160
mVPP
I CER(H) I CER(L)
0 -- -- -- 2
-- -- 1.15 0.6 --
5 100 1.65 0.85 20
mA A V V mVPP
VO = 7.0 V VO = 0 V I O = 0.7 A I O = 0.35 A
10, 12, 13
Saturation voltage
Vsat1 Vsat2
1
FG amp and detector
Input voltage range Noise margin
Vfg
1, 28
nd nc
-- --
-- --
0.5 0.5
mVPP V
Differential Noise COMMON Noise
10
HA13536F
Electrical Characteristics (Ta = 25C, VCC = 5 V) (cont)
Item Speed discriminator and charge pump Number of counts Symbol N Min -- Typ 1666.5 Max -- Unit -- Test conditions PRMSEL = L Pin Nos. Notes
-- Operating frequency Leakage current Output current f CLK Ioff Icp+ Icp- Current control Threshold voltage Vref2 0.9 -- 7 -7 0.55 -12 157
1388.5 1.0 -- 10 -10 0.63 -10 175
-- 1.1 50 13 -13 0.71 -8 193
-- MHz nA A A V dB mV
PRMSEL = H 7 V8 = 0.8 V Speed reduction full scale Acceleration full scale 8 11 RNF = 0.47 2 8
Voltage gain Gctl Current limitter voltage Index circuit Input voltage (common) Input voltage (different) Hysteresis Input current Threshold voltage Vth1 Vref1
Vindex
1.4
--
VCC - 0.5 V
26, 27
3
Vindex
40
--
300
mVpp
hys
-- -- 0.60 x Vreg 0.54 x Vreg
14 -- 0.64 x Vreg 0.58 x Vreg 0.54 x Vreg 0.48 x Vreg 1.5 2.2
-- 2 0.68 x Vreg 0.62 x Vreg 0.58 x Vreg 0.52 x Vreg 1.7 2.5
mV A V V V RPM select = L RPM select = H RPMSEL = L 3 3 3
Ct discharge Vth2 threshold voltage
0.50 x Vreg 0.44 x Vreg
V V V
RPMSEL = H I O = -0.2 mA 4
Bias Hall bias Output voltage
Vreg Vhb
1.3 1.9
Ih = 10 mA, CE 17 =L
11
HA13536F
Electrical Characteristics (Ta = 25C, VCC = 5 V) (cont)
Item Hall bias OTSD Notes: 1. 2. 3. 4. Leakage current Symbol Ihof Min -- 125 Typ -- 150 Max 10 -- Unit A C Test conditions Pin Nos. Notes
CE = H, Vhb = 17 7.0 V 4
Operating Tsd temperature
Total of sink and source. See figure 1. Gctl = Vrnf/Vcp. Refer to the timing chart. Design parameter only (No test).
Vrnf (Pin 11) Vref1 Vrnf Vcp 0 Vref2 Vcp (8 pin)
Figure 1
12
HA13536F
Reference Data
20
Quiscent current ICC (mA)
Current limitter voltage Vref1 (mV)
1.00
Quiscent current ICCO (mA)
190 VCC = 5 V 180
15
0.75
10
ICC
0.50
170
5 ICCO 0 2 4 6 8
0.25
160
150 0.2 0.4 0.6 RNF () 0.8 1.0
Power supply voltage VCC (V)
2.0
Output saturation voltage Vsat (V)
20 VCC = 5 V VCC = 5 V
Hall bias current Ih (mA)
1.5 sink + source source 0.5 sink
15
1.0
10
5
0
0.5
1.0
1.5
0
1
2
3
4
Output current IO (A)
Hall bias voltage Vhb (V)
13
HA13536F
Mount Waveform Characteristics
Hall input (+) (50 mV / div)
0V
Output (1 V / div) Charge pump output (0.5 V / div)
0V
Phase compensation 0V (0.5 V / div) 0V Time (20 ms / div)
Index input (+) 0V (0.1 V / div)
Index Vreg (1 V / div) 0V Index adjust (0.5 V / div) 0V Index output (5 V / div)
0V Time (2 ms / div)
14
HA13536F
Package Dimensions
Unit: mm
9.0 0.2
21 28 1 0.3 0.1 6
14
7 0.13
M
0.65 0.17 0.05 1.7 Max
9.0 0.2 7.0 20 15
1.0 0 - 10
2.25 0.1 0.1
0.22 Max 0.08 Min
0.95 0.1 0.5 0.2 Hitachi code EIAJ code JEDEC code FP-28T -- --
15
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
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