HITACHI HA13536F

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
V phase
V phase
W phase
W phase
+
–
+
–
input
input
input
input
20 19 18
21
Hall bias
Bias – pin
Bias + pin
U phase – input
U phase + input
VCC
Pin Arrangement
TAB
17 16 15
14
22
13
23
12
24
11
TAB
TAB
25
10
26
9
27
8
28
7
1 2 3
TAB
4
5 6
Index Vreg
Index output
CE
FG – input
RPM SEL
Index adjust
AGC
Index + input
Index – input
FG + input
Bias output
U phase output
V phase output
Current detection
(Top view)
2
W phase output
Phase compensation
Charge pump output
CLK input
HA13536F
Block Diagram
C102
VCC
C105
25
14
VCC
5V
C101
18
R101
Hu
R102
Hv
Hw
Hi
19
u (+)
20
u (-)
21
v (+)
22
v (-)
23
w (+)
24
w (-)
26
(+)
Hall
Amp
Matrix
U
13
Output
Amp V
12
W
10
11
Rnf
Control Amp.
27
–
(-)
Index
circuit
3
OTSD
9
Rt1
Ct
C106
Current
limitter
Vref1
+
4
Rt2
5
Index output
(Open collector)
2
RPM select
H: 360 rpm
L: 300 rpm
17
–
16
+
Buffer Amp.
Bias
C104
Vref2
15
CE 6
Speed
discriminator
CLK
7
1 MHz
1.6 V
FG
60 ppr
Charge
pump
C1
FG Amp.
28
+
1
–
C103
TAB
Note : Pin arrangement is preliminary specification.
3
8
C2
R2
HA13536F
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
VTH = 1.4 V Typ
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)
VOL = 0.14 V Typ
(@I O = 2 mA)
6
CE
Chip enable terminal
“L”: enable, “H”: disable
VTH = 1.4 V Typ
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 connected with phase compensation capacitor for carrent 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
2.2 V Typ
(@I = 10 mA)
18
VCC
Power supply
4.25 V Min, 6.5 V
Max
19
U phase (+) input
U phase (+) input terminal
2.0 V Min,
VCC – 0.5 V Max
20
U phase (–) input
U phase (–) input terminal
2.0 V Min,
VCC – 0.5 V Max
21
V phase (+) input
V phase (+) input terminal
2.0 V Min,
VCC – 0.5 V Max
22
V phase (–) input
V phase (–) input terminal
2.0 V Min,
VCC – 0.5 V Max
23
W phase (+) input
W phase (+) input terminal
2.0 V Min,
VCC – 0.5 V Max
24
W phase (–) input
W phase (–) input terminal
2.0 V Min,
VCC – 0.5 V Max
25
AGC
Hall amp output wave form adjustment terminal
(Insert capacitor C102 between GND)
4
HA13536F
Pin Function (cont)
Pin Number Pin Name
Function
Pin Voltage
26
Index (+) input
Index amp (+) input terminal
1.4 V Min,
VCC – 0.5 V Max
27
Index (–) input
Index amp (–) input terminal
1.4 V Min,
VCC – 0.5 V Max
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 kΩ
Index burst adjustment
3
Rt2
100 kΩ
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:
ωO ≤
2πfFG
20
R2 =
1
9.55
C1 =
(rad/s)
Jω ONO. Rnf
(Ω)
KTGctl Icp
1
1
10 ω OR2
C2 = 10C1
(F)
(F)
5
HA13536F
In the above formulas:
ωO = 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 Ω
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 × 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:
200
(µF)
C102 >
NOP
C103 >
100
fFG
(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
HA13536F
Timing Waveforms
Hall Amp Input vs. Output Voltage and Current
U
V
W
+
Hall amp input
*1
0
–
VCC
U
Output voltage*2
0
+
Output current *2
U
0
–
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
0
Index amp input
20 to 100 mV
–
Index output
Vth2
Vth1
Pin 3 voltage
t1
0
t2
VCC
0
• Application 2
+
20 to 100 mV
Index amp
differential input
0
20 to 100 mV
–
Pin 3 voltage
Index output
Vth1
0
VCC
0
8
Vth2
t1
t2
HA13536F
Absolute Maximum Ratings (Ta = 25°C)
Item
Symbol
Value
Unit
Notes
Power supply voltage
VCC
7
V
1
Input voltage
Vin
0 to V CC + 0.3
V
2
Peak output current
I OP
1.0
A
Normal output current
IO
0.7
A
Power dissipation
PT
1.5
W
3
Junction temperature
Tj
+150
°C
1
Storage temperature range
Tstg
–55 to +125
°C
Notes: 1. The operating ranges is:
VCC = 4.25 to 6.5 V
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 j–pin ≤ 25°C/W
θ j–a1 ≤ 55°C/W (when mounted on a metal substrade)
θ j–a2 ≤ 80°C/W (when mounted on a glass epoxy substrade)
9
HA13536F
Electrical Characteristics (Ta = 25°C, VCC = 5 V)
Test conditions
Item
Symbol
Min
Typ
Max
Unit
Quiscent
current
I CCO
—
—
0.45
mA
CE = H, VCC =
6.5 V
I CC
—
9
13
mA
CE = L, VCC =
6.5 V
–80
—
2
µA
VCE = 0 to 6.5 2, 6, 7
V
Input current I I2
(2 pin)
–2
—
100
µA
VRPM = 5.5 V
Input current I I3
(7 pin)
–2
—
450
µA
VCLK = 5.5 V
Input low
voltage
VIL
0
—
0.8
V
Input high
voltage
VIH
2.0
—
5.5
V
Output low
voltage
VOL
—
—
0.4
V
I O = 2 mA
Leakage
current
I OH
—
—
±10
µA
VCE = 7.0 V
Input
resistance
Rhi
7
10
13
kΩ
Commonmode input
voltage
range
VH
2.0
—
VCC – 0.5 V
Differential
input voltage range
Vh
30
—
160
mVPP
Leakage
current
I CER(H)
0
—
5
mA
VO = 7.0 V
I CER(L)
—
—
±100
µA
VO = 0 V
Vsat1
—
1.15
1.65
V
I O = 0.7 A
Vsat2
—
0.6
0.85
V
I O = 0.35 A
Input
voltage
range
Vfg
2
—
20
mVPP
Noise
margin
nd
—
—
0.5
mVPP
Differential
Noise
nc
—
—
0.5
V
COMMON
Noise
Logic input Input current I I1
(6 pin)
Logic output
Hall amp
Output
amp
Saturation
voltage
FG amp
and detector
10
Pin
Nos.
Notes
18
5
19 to 24
10, 12,
13
1
1, 28
HA13536F
Electrical Characteristics (Ta = 25°C, VCC = 5 V) (cont)
Item
Speed
discriminator and
charge
pump
Current
control
Index circuit
Number of
counts
Symbol
Min
Typ
Max
Unit
Test conditions
N
—
1666.5
—
—
PRMSEL = L
—
1388.5
—
—
PRMSEL = H
Operating
frequency
f CLK
0.9
1.0
1.1
MHz
Leakage
current
Ioff
—
—
±50
nA
V8 = 0.8 V
Output
current
Icp+
7
10
13
µA
Speed reduction full scale
Icp–
–7
–10
–13
µA
Acceleration
full scale
Vref2
0.55
0.63
0.71
V
8
Voltage gain Gctl
–12
–10
–8
dB
11
Current
limitter
voltage
Vref1
157
175
193
mV
Input
voltage
(common)
Vindex
1.4
—
VCC – 0.5 V
Input
voltage
(different)
Vindex
40
—
300
mVpp
Hysteresis
hys
—
14
—
mV
—
—
±2
µA
0.60 ×
Vreg
0.64 ×
Vreg
0.68 ×
Vreg
V
RPM select = L
0.54 ×
Vreg
0.58 ×
Vreg
0.62 ×
Vreg
V
RPM select = H
0.50 ×
Vreg
0.54 ×
Vreg
0.58 ×
Vreg
V
RPMSEL = L
0.44 ×
Vreg
0.48 ×
Vreg
0.52 ×
Vreg
V
RPMSEL = H
Threshold
voltage
Input current
Threshold
voltage
Vth1
Ct discharge Vth2
threshold
voltage
Hall bias
Pin
Nos.
7
8
2
RNF = 0.47 Ω
26, 27
3
3
3
Bias
Vreg
1.3
1.5
1.7
V
I O = –0.2 mA
Output
voltage
Vhb
1.9
2.2
2.5
V
Ih = 10 mA, CE 17
=L
11
Notes
4
3
HA13536F
Electrical Characteristics (Ta = 25°C, VCC = 5 V) (cont)
Item
Symbol
Min
Typ
Max
Unit
Ihof
—
—
±10
µA
125
150
—
°C
Hall bias
Leakage
current
OTSD
Operating
Tsd
temperature
Notes: 1.
2.
3.
4.
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
Test conditions
Pin
Nos.
Notes
CE = H, Vhb = 17
7.0 V
4
HA13536F
Quiscent current ICC (mA)
0.75
15
10
0.50
ICC
0.25
5
ICCO
0
2
4
6
Quiscent current ICCO (mA)
1.00
20
Current limitter voltage Vref1 (mV)
Reference Data
190
VCC = 5 V
180
170
160
150
8
0.2
0.4
0.8
1.0
3
4
RNF (Ω)
Power supply voltage VCC (V)
2.0
20
VCC = 5 V
Hall bias current Ih (mA)
Output saturation voltage Vsat (V)
0.6
VCC = 5 V
1.5
sink + source
1.0
source
0.5
sink
0
0.5
1.0
15
10
5
0
1.5
Output current IO (A)
1
2
Hall bias voltage Vhb (V)
13
HA13536F
Mount Waveform Characteristics
Hall input (+)
(50 mV / div)
Output
(1 V / div)
0V
0V
Charge pump output
(0.5 V / div)
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
14
21
28
6
0.13
M
2.25 ± 0.1
0.1
0.22 Max
0.08 Min
1.7 Max
1
0.3 ± 0.1
7
0.17 ± 0.05
9.0 ± 0.2
9.0 ± 0.2
7.0
20
15
0.65
Unit: mm
1.0
0 – 10°
0.95 ± 0.1
0.5 ± 0.2
Hitachi code
EIAJ code
JEDEC code
15
FP-28T
—
—
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