Rohm BD6603KVT Silicon monolithic integrated circuit Datasheet

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Structure
Silicon Monolithic Integrated Circuit
Product Series
5ch Sensorless System Motor Driver for MD
Type
BD6603KVT
Features
・Operates at low power supply voltage (2.3V min.)
・Power DMOS output with low ON resistance (0.8Ω typ.)
・Incorporates a charge pump circuit for VG boost
・3-phase full-wave sensorless driving system for spindle
・4ch, 2-value control H-bridges for sled/focus/tracking/head up/down
・2ch half-bridges for spindle/sled VM power supply
○Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Power supply voltage for control circuit
Power supply voltage for driver block
Limit
Unit
VCC
7
V
VM
7
V
Power supply voltage for pre-driver block
VG
15
V
Input voltage
VIN
0~VCC
V
Output current
Iomax
*500
mA
Pd
**1250
mW
Power dissipation
Operating temperature range
Topr
-25~+75
℃
Storage temperature range
Tstg
-55~+150
℃
Tjmax
+150
℃
Junction temperature
*Must not exceed Pd or ASO, Tjmax=150℃.
**Reduced by 10.0mW/°C over Ta=25°C, when mounted on a glass epoxy board (70mm70mm1.6mm).
○Operating conditions (Ta=-25~+75℃)
Parameter
Power supply voltage
Pulse input frequency
Symbol
Min.
Typ.
VCC
2.3
VM
-
VG
VM+3
9
14
V
fin
-
-
200
kHz
REV. B
Max.
Unit
3.0
6.5
V
-
6.5
V
2/4
○Electrical characteristics
(Unless otherwise specified, Ta=25°C, VCC=3V, VM=2.5V, fin=176kHz)
Parameter
Circuit current
Output ON resistance
Symbol
Limit
Unit
Conditions
Min.
Typ.
Max.
ICC
-
5.6
8.0
mA
at operation in all blocks
IST
-
16
50
μA
at standby in all blocks
RON
-
0.8
1.2
Ω
upper and lower ON resistance
in total
VG=10V
~Boost circuit~
VG1
7.5
8.9
10.0
V
each input L
VG2
6.0
7.3
9.5
V
at operation in all blocks
Self propelled oscillating frequency
fOSC
125
250
400
kHz
External clock synchronous range
fSYNC
-
-
500
kHz
-
+10
mV
Output voltage
~Oscillation circuit~
input from EXTCLK pin
~Spindle (3-phase full-wave sensorless driver) block~
Position detection comparator
offset
VCO
-10
Detection comparator input range
VCD
0
-
VCC-1.0
V
CST charge current
ICTO
-0.9
-2.1
-3.3
μA
CST=1V
CST discharge current
ICTI
2.0
3.6
5.3
mA
CST=1V
CSL charge current
ICLO
-4.0
-8.0
-12
μA
CSL=VCC-0.4V
CSL discharge current
ICLI
2.0
5.5
5.3
μA
CSL=VCC-0.4V
Brake comparator input current
IBR
-
-
2.0
μA
BRK=VCC
Brake comparator input offset
VBO
-15
-
+15
mV
Brake comparator input range
VBD
0
-
VCC-1.5
V
FG output L voltage
VOLF
-
0.2
0.3
V
Io=500μA
~Sled, focus, tracking, head up/down, PWM power supply (H-bridge, half-bridge driver) block~
Logic H level input voltage
VINH
VCC-0.4
-
-
Logic L level input voltage
VINL
-
-
0.4
V
IINH1
-
-
1
μA
VIN=3V
IINH2
-
350
600
μA
VIN=3V EXTCLK pin
VIN=0V
Logic H level input current
Logic L level input current
Output propagation delay time
Minimum input pulse width
V
IINL
-1
-
-
μA
TRISE
-
0.2
1
μsec
TFALL
-
0.1
0.7
μsec
tmin
200
-
-
nsec
◎This product is not designed for protection against radioactive rays.
REV. B
output pulse width 2/3tmin
or more
3/4
○Package outlines
Type
BD6603KVT
Lot No.
TQFP64V outlines (Unit:mm)
○Pin No./Pin name
+
+
SPCOM
SPCOM
SPVIN
VCC1,2
SPUIN
BRK-
BRK+
○Block diagram
+
CSL2
CSL1
Slope
Signal
SPW
OUT
Drive
VG
CLK
OUT
IN1
EXT
PW1
PW
SLED
MOTOR
IN4R
Pre Drive
Pre Drive
IN3F
IN3R
IN2F
IN4F
IN2
PW
Pre Drive
IN2R
Pre
Drive
IN1F
PW2
OUT
Pre
Drive
VG
Pre Drive
OUT OUT
SPV SPV
Pre
C1M
IN1R
C1P
C2P
Charge Pump
Oscillator
C2M
STHB
Stand-by
STALL
TSD
Phase
Control
FG
Logic
CST
+
REV. B
NO.
Pin name
NO.
Pin name
1
PWIN2
33
CSL1
2
IN1F
34
FG
3
IN1R
35
IN4R
4
IN2F
36
IN4F
5
IN2R
37
IN3R
6
H1PG2
38
IN3F
7
H1ROUT
39
H4PG1
8
H1VM
40
H4FOUT
9
H1FOUT
41
H4VM
10
H1PG1
42
H4ROUT
H4PG2
11
H2PG2
43
12
H2ROUT
44
H3PG1
13
H2VM
45
H3FOUT
14
H2FOUT
46
H3VM
15
H2PG1
47
H3ROUT
16
BRK-
48
H3PG2
17
BRK+
49
VG
18
SPUIN
50
C2M
19
SPVIN
51
C2P
20
SPWIN
52
C1M
21
SPCOM
53
C1P
22
SGND
54
EXTCLK
23
ASGND
55
STHB
24
SPPG2
56
STALL
25
SPUOUT
57
VCC1
26
SPVM2
58
VCC2
27
SPVOUT
59
PW2VM
28
SPPG1
60
PW2OUT
29
SPWOUT
61
PWPG
30
SPVM1
62
PW1OUT
31
CST
63
PW1VM
32
CSL2
64
PWIN1
4/4
○Notes on the use
(1)
Absolute maximum ratings
If the input voltage or the operating temperature range exceeds absolute maximum ratings, IC may be damaged. No
destruction mode (e.g., short-circuiting or open) can be specified in that case. If such special mode as will exceed
absolute maximum ratings is assumed, take the physical safety measures, such as a fuse.
(2)
Power supply lines
The regenerated current by BEMF of the motor will return. Therefore, take measures, such as the insertion of a capacitor
between the power supply and GND as the pass of the regenerated current. Determine the capacitance in full
consideration of all the characteristics of the electrolytic capacitor, because the electrolytic capacitor may loose some
capacitance at low temperatures.
(3)
Ground potential
Ensure a minimum GND pin potential in all operating conditions.
(4)
Design for heat
Use the design for heat that allows for a sufficient margin in light of the power dissipation (Pd) in actual using conditions.
(5)
Operation in strong magnetic field
Use caution when using the IC in the strong magnetic field as doing so may cause the IC to malfunction.
(6)
ASO
When using the IC, make settings so that the output transistors for the motor will not be used under conditions in excess
of the absolute maximum ratings and ASO.
(7)
Thermal shutdown circuit
This IC incorporates thermal shutdown circuit(TSD circuit).
When the chip temperature becomes the one shown in below, TSD circuit operates and makes the coil output to motor
open. It is designed to shut the IC off from runaway thermal operation. It is not designed to protect the IC or guarantee its
operation. Do not continue to use the IC after operating this circuit or use the IC in an environment where the operation of
this circuit is assumed.
TSD ON temperature[℃] (typ.)
175
(8)
Hysteresis emperature [℃]
20
(typ.)
Ground wiring pattern
When having both small signal and large current GND, it is recommended to isolate the two GND patterns, placing a
single ground point at the application's reference point so that the pattern wiring resistance and voltage variations caused
by large currents do not cause voltage variations of the small signal GND. Be careful not to change the GND wiring
pattern of any external parts, either.
REV. B
Notice
Notes
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R1120A
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