Datasheet HA13536F Datasheet (HIT)

Page 1
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
Page 2
HA13536F
Pin Arrangement
CC
U phase – input
U phase + input
V
Hall bias
Bias – pin
Bias + pin
V phase + input
V phase – input W phase + input W phase – input
AGC Index + input Index – input
FG + input
18
19
20
21 22 23 24
TAB
25 26 27 28
123
RPM SEL
FG – input
TAB
TAB
Index adjust
(Top view)
16 15
17
14 13 12 11
TAB
10
456
CE
Index Vreg
Index output
Bias output U phase output V phase output Current detection
W phase output
9
Phase compensation
8
Charge pump output
7
CLK input
2
Page 3
Block Diagram
HA13536F
R102
60 ppr
R101
Ct
C104
FG
V
CC
Hu
Hv
Hw
Hi
Rt1
CE
CLK
1 MHz
C103
Rt2
19 20 21 22
23 24
26
27
17
16
15
28
3
4
6
7
1
1.6 V
C102 C105
25 14 18
u (+) u (-)
Hall
v (+) v (-)
w (+) w (-)
(+)
(-)
Index
circuit
Bias
FG Amp.
Amp
+ –
OTSD
Speed
discrim-
inator
Matrix
Control Amp.
– +
– +
Buffer Amp.
Charge
pump
Output
Amp
Current
limitter
Vref2
U
V
W
Vref1
C101
13
12
10
11
Rnf
C106
9
Index output
5
(Open collector)
RPM select
2
H: 360 rpm L: 300 rpm
8
C1
V
CC
5 V
C2 R2
Note : Pin arrangement is preliminary specification.
TAB
3
Page 4
HA13536F
O
Pin Function
Pin Number Pin Name Function Pin Voltage
1 FG (–) input FG Amp. (–) input terminal 2 RPMSEL Change terminal for motor rotation speed
“L” 300 rpm, “H” → 360 rpm 3 Index adjustment Terminal to set up burst time of index circuit 0 V Min, 1.2 V Max 4 Index Vreg Output terminal for fixed voltage of index circuit 1.5 V Typ 5 Index output Index output terminal (Open collector) V
6 CE Chip enable terminal
“L”: enable, “H”: disable 7 CLK input CLK input terminal VTH = 1.4 V Typ 8 C-PUMP output Speed error Integration and Phase compensation of
speed control 9 Phase compensation To prevent the parastic oscillation of output, insert
the capacitor between pin 9 and pin 11. 10 W phase output W phase output 11 Current detection Output current detection and terminal which is con-
nected with phase compensation capacitor for car-
rent control. 12 V phase output V phase output 13 U phase output U phase output 14 Bias output Bias output terminal 15 Bias (+) pin Bias (+) pin terminal 16 Bias (–) pin Bias (–) pin terminal 17 Hall bias Hall bias terminal
CE = “L” Bias,
CE = “H” High impedance
18 V
CC
Power supply 4.25 V Min, 6.5 V
19 U phase (+) input U phase (+) input terminal 2.0 V Min,
20 U phase (–) input U phase (–) input terminal 2.0 V Min,
21 V phase (+) input V phase (+) input terminal 2.0 V Min,
22 V phase (–) input V phase (–) input terminal 2.0 V Min,
23 W phase (+) input W phase (+) input terminal 2.0 V Min,
24 W phase (–) input W phase (–) input terminal 2.0 V Min,
25 AGC Hall amp output wave form adjustment terminal
(Insert capacitor C102 between GND)
VTH = 1.4 V Typ
= 0.14 V Typ
L
(@I
= 2 mA)
O
VTH = 1.4 V Typ
2.2 V Typ (@I = 10 mA)
Max
V
– 0.5 V Max
CC
V
– 0.5 V Max
CC
V
– 0.5 V Max
CC
V
– 0.5 V Max
CC
V
– 0.5 V Max
CC
V
– 0.5 V Max
CC
4
Page 5
HA13536F
Pin Function (cont)
Pin Number Pin Name Function Pin Voltage
26 Index (+) input Index amp (+) input terminal 1.4 V Min,
– 0.5 V Max
V
CC
27 Index (–) input Index amp (–) input terminal 1.4 V Min,
V
– 0.5 V Max
CC
28 FG (+) input FG amp (+) input terminal DC bias 1.6 V Typ
External Parts
Part Number Recommended Value Purpose Notes
R2 Integration constant 1 R101 Hall bias R102 Index hall bias Rnf Current detection and limitation 2 Rt1 0 to 50 k Index burst adjustment 3 Rt2 100 k Index pulse width setting C1, C2 Integration constants 1 C101 0.1 µF Power supply bypass 4 C102 0.1 µF AGC filter 5 C103 0.47 µF FG amp. coupling 5 C104 0.1 µF Bias C105 0.1 µF Bias 7 C106 0.1 µF Phase compensation 4 Ct 0.1 µF Index setting 3, 6
Notes: 1. Determine the integration constants from the following formulas:
2πf
ω
O
R2 =
C1 =
FG
20
Jω K
ω
O
N
O
Gctl Icp
T
1
R2
O
1
9.55 1
10
.
Rnf
(rad/s)
()
(F)
C2 = 10C1
(F)
5
Page 6
HA13536F
In the above formulas:
ω
O
f
FG
N
O
J = Motor moment of inertia in kg•cm•s 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:
I
OMAX =
where Vref1 is the current limiter reference voltage (see Electrical Characteristics)
3. The burst time t1 is defined as follows: t1 – Ct × Rt1’ × ln (1 – Vth1 (L) / Vreg) (RPM select input low)
t1 – Ct × Rt1’ × 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:
C102 >
= Time constant of servo loop = FG frequency in Hz = Motor speed in rpm
Vref1
Rnf
200
N P
O
(A)
(µF)
2
C103 >
100
f
FG
(µF)
where P = Number of motor poles
6. The index pulse width t2 is determined as follows: t2 – Ct × Rt2’ × 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
Page 7
Timing Waveforms
Hall Amp Input vs. Output Voltage and Current
HA13536F
+
*1
Hall amp input
Output voltage
Output current
Notes: 1. 2.The input waveforms to the hall amp should be sine waves with a third
0
V
CC
*2
0
+
*2
0 –
harmonic content of less than 20%. Only the U phase output is shown.
UV W
U
U
7
Page 8
HA13536F
Index Amp Input vs. Output
Application 1
Index amp input
Pin 3 voltage
+
20 to 100 mV
0
20 to 100 mV
0
Vth1
t1 t2
Vth2
Application 2
Index output
Index amp differential input
Pin 3 voltage
Index output
V
CC
0
+
20 to 100 mV
0
20 to 100 mV
0
V
CC
0
Vth1
t1 t2
Vth2
8
Page 9
HA13536F
Absolute Maximum Ratings (Ta = 25°C)
Item Symbol Value Unit Notes
Power supply voltage V
CC
Input voltage Vin 0 to VCC + 0.3 V 2 Peak output current I Normal output current I Power dissipation P
OP
O
T
Junction temperature Tj +150 °C1 Storage temperature range Tstg –55 to +125 °C
Notes: 1. The operating ranges is:
V
= 4.25 to 6.5 V
CC
Tjopr = 0 to +125°C
2. Applied to the CE, CLK, and RPM SEL pins.
3. Permissible value when Tpin = 113°C and thermal resistance is as follows:
θ
25°C/W
j–pin
θ
55°C/W (when mounted on a metal substrade)
j–a1
θ
80°C/W (when mounted on a glass epoxy substrade)
j–a2
7V1
1.0 A
0.7 A
1.5 W 3
9
Page 10
HA13536F
Electrical Characteristics (Ta = 25°C, VCC = 5 V)
Item Symbol Min Typ Max Unit
Quiscent current
Logic input Input current
(6 pin) Input current
(2 pin) Input current
(7 pin) Input low
voltage Input high
voltage
Logic out­put
Output low voltage
Leakage current
Hall amp Input
resistance Common-
mode input voltage range
Differential input volt­age range
Output amp
Leakage current
Saturation voltage
FG amp and de­tector
Input voltage range
Noise margin
I
CCO
I
CC
I
I1
I
I2
I
I3
V
IL
V
IH
V
OL
I
OH
0.45 mA CE = H, VCC =
9 13 mA CE = L, VCC =
–80 2 µA VCE = 0 to 6.5V2, 6, 7
–2 100 µAV
–2 450 µAV
0 0.8 V
2.0 5.5 V
0.4 V IO = 2 mA 5
——±10 µAV
Rhi7 1013k 19 to 24
V
H
2.0 VCC – 0.5 V
Vh 30 160 mV
I
CER(H)
I
CER(L)
0—5mAV
——±100 µAV
Vsat1 1.15 1.65 V IO = 0.7 A 1
Vsat2 0.6 0.85 V IO = 0.35 A Vfg 2 20 mV
nd 0.5 mV
nc 0.5 V COMMON
Test condi­tions Pin
6.5 V
6.5 V
RPM
CLK
CE
PP
= 7.0 V 10, 12,
O
= 0 V
O
PP
Differential
PP
Noise
Noise
Notes
Nos.
18
= 5.5 V
= 5.5 V
= 7.0 V
13
1, 28
10
Page 11
Electrical Characteristics (Ta = 25°C, VCC = 5 V) (cont)
Item Symbol Min Typ Max Unit
Speed discrimi­nator and charge pump
Current control
Index cir­cuit
Hall bias Output
Number of counts
Operating frequency
Leakage current
Output current
Threshold voltage
Voltage gain Gctl –12 –10 –8 dB 11 Current
limitter voltage
Input voltage (common)
Input voltage (different)
Hysteresis hys 14 mV Input current ±2 µA3 Threshold
voltage
Ct discharge threshold voltage
Bias Vreg 1.3 1.5 1.7 V IO = –0.2 mA 4
voltage
N 1666.5 PRMSEL = L
1388.5 PRMSEL = H
f
CLK
Ioff ±50 nA V8 = 0.8 V 8
Icp+ 7 10 13 µA Speed reduc-
Icp– –7 –10 –13 µA Acceleration
Vref2 0.55 0.63 0.71 V 8 2
Vref1 157 175 193 mV RNF = 0.47
Vindex 1.4 VCC – 0.5 V 26, 27 3
Vindex 40 300 mVpp
Vth1 0.60 ×
Vth2 0.50 ×
Vhb 1.9 2.2 2.5 V Ih = 10 mA, CE
0.9 1.0 1.1 MHz 7
Vreg
0.54 × Vreg
Vreg
0.44 × 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
V RPM select = L
V RPM select = H
V RPMSEL = L 3 3
V RPMSEL = H
HA13536F
Test condi­tions Pin
Nos.
tion full scale
full scale
17
= L
Notes
11
Page 12
HA13536F
Electrical Characteristics (Ta = 25°C, VCC = 5 V) (cont)
Item Symbol Min Typ Max Unit
Hall bias Leakage
current
OTSD Operating
temperature
Notes: 1. Total of sink and source.
2. See figure 1. Gctl = Vrnf/Vcp.
3. Refer to the timing chart.
4. Design parameter only (No test).
Ihof ±10 µA CE = H, Vhb =
Tsd 125 150 °C4
Vrnf (Pin 11)
Vref1
Vrnf
Vcp
Test condi­tions Pin
Nos.
17
7.0 V
Notes
Vref2
0
Vcp (8 pin)
Figure 1
12
Page 13
Reference Data
HA13536F
20
15
(mA)
CC
10
I
CC
5
Quiscent current I
I
CCO
0246
Power supply voltage V
2.0
VCC = 5 V
1.5
1.0
sink + source
CC
source
(V)
8
1.00
0.75
0.50
0.25
190
(mA)
CCO
180
170
160
Quiscent current I
Current limitter voltage Vref1 (mV)
150
0.2 0.4 0.6
20
15
10
VCC = 5 V
RNF ()
VCC = 5 V
0.8
1.0
0.5
Output saturation voltage Vsat (V)
0 0.5 1.0
Output current I
O
sink
(A)
1.5
5
Hall bias current Ih (mA)
01234
Hall bias voltage Vhb (V)
13
Page 14
HA13536F
Mount Waveform Characteristics
Hall input (+) (50 mV / div)
Output (1 V / div)
Charge pump output (0.5 V / div)
Phase compensation (0.5 V / div)
0V
0V
0V
0V
Time (20 ms / div)
Index input (+) (0.1 V / div)
Index Vreg (1 V / div)
Index adjust (0.5 V / div)
Index output (5 V / div)
0V
0V
0V
0V
Time (2 ms / div)
14
Page 15
Package Dimensions
21
28
9.0 ± 0.2
0.3 ± 0.1
9.0 ± 0.2
7.0
20 15
1
HA13536F
Unit: mm
0.65
14
7
6
M
0.13
1.0
1.7 Max
0.17 ± 0.05
0 – 10°
2.25 ± 0.1
0.1
0.95 ± 0.1
0.22 Max
0.08 Min Hitachi code
EIAJ code
JEDEC code
0.5 ± 0.2
FP-28T
— —
15
Page 16
Cautions
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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.
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