bd16805fv m e

Datasheet
Three Phase Motor Predriver IC for automotive
Built-in the Phase adjustment control and
180°energizing drive
Three Phase Motor Predriver
BD16805FV-M
●General Description
BD16805FV-M is three phase motor driver for air conditioner blower motor, battery cooling fan motor, and seat cooling fan
motor. This IC can implement silent drive by 180° e nergizing drive. The BD16805FV includes a built-in phase adjustment
control function to drive highly effective. The setting that can correspond to various motor controls is possible.
(PWM frequency, Overcurrent protection limit, Start time and Lock protection)
●Features
●Packages
■ 180° energizing
SSOP-B40
13.6 ㎜×7.80 ㎜×1.80 ㎜
■ Phase adjustment control
■ Built-in charge pump
●Applications
■ Built-in MUTE return and uptime setting
■ Air conditioner blower motor
■ Normal rotation/reversal rotation switch function
■ Battery cooling fan motor
■ 1FG/3FG switch function
■ Seat cooling fan motor
■ Speed control by DC input and PWM input
■ Output mode can be selected
■ Built-in overcurrent protection circuit(OCP)
(With limit adjustment function)
■ Lock protection function
■ Built-in low voltage protection circuit(UVLO)
■ Built-in overvoltage protection circuit(OVP)
■ Built-in thermal shutdown (TSD)
●Typical Application Circuits
0.1uF
BATTERY
VCC
VREG
HALL
HALL
HALL
VG
0.1uF
C_P
C_M
DUH
VS_U
HU+
HUHV+
HVHW+
HW-
DUL
DVH
VS_V
DVL
DWH
VS_W
VDEG
MODESEL
FR
PWM SIGNAL
470pF~10000pF
1uF
0.1uF~10uF
CT2 DISCHARGE SIGNAL
STB SIGNAL
DWL
RNF
FGSW
LOCPL
PWM
VTH
CT2
100kΩ
MCU Standard
Power Supply
AL
COSC
CAGC
ALARM SIGNAL
100kΩ
CT1
MCT2
STB
Motor
VREG
FG
1 FG / 3 FG SIGNAL
GND
PGND
○Product structure:Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays.
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Datasheet
BD16805FV-M
●Absolute maximum ratings (Ta=25℃)
Parameter
Symbol
Limits
Unit
Power supply voltage
VCC
60
V
Input voltage 1
STB
7
V
Input voltage 2
PWM / FR / MODESEL / VDEG / FGSW / VTH / MCT2
VREG+0.7
V
D*H / VS_U / VS_V / VS_W
60
V
D*L
15
V
FG/AL
7
V
Output voltage
Power dissipation
Pd
1.125
W
Operating temperature range
Topr
-40~110
℃
Storage temperature range
Tstg
-55~150
℃
Tjmax
150
℃
Symbol
Limits
Unit
VCC
8~18
V
Joint part temperature
●Recommended operating conditions (Ta=25℃)
Parameter
Power supply voltage range of
operation
Exceed neither Pd nor ASO.
ROHM standard board(70×70×1.6[mm], glass epoxy standard board)
Reduce by 9.0mW/℃ at Ta ≧ 25℃
●Power dissipaton
●Block diagram
Pd [W]
1.125
1.0
0.5
0
25
50
75
100 110 125
150 Ta[
]
ROHM standard board(70×70×1.6[mm],
glass epoxy standard board)
Reduce by 9.0mW/℃ at Ta ≧ 25℃
●Package Dimensions
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Datasheet
BD16805FV-M
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Description
GND terminal
1FG / 3FG output terminal
Alarm signal output terminal
Current limit setting terminal
Current detection terminal
N.C.
W phase L side FET drive output terminal
W phase Motor output terminal
W phase H side FET drive output terminal
V phase L side FET drive output terminal
V phase Motor output terminal
V phase H side FET drive output terminal
POWER GND terminal
U phase L side FET drive output terminal
U phase Motor output terminal
U phase H side FET drive output terminal
Charge pump capacitor connection terminalCharge pump capacitor connection terminal+
Pre driver circuit power supply terminal
Power supply terminal
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No.
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
3/16
23
22
21
FR
MODESEL
TEST
C_P
VG
VCC
18
19
20
24
FGSW
C_M
17
Symbol
TEST
MODESEL
FR
FGSW
STB
VREG
HU+
HUHV+
HVHW+
HWVTH
CT2
PWM
CT1
CAGC
VDEG
MCT2
COSC
25
STB
DUH
16
26
VREG
VS_U
15
27
HU+
DUL
14
28
HU!
PGND
13
29
HV+
DVH
12
VH!
VS_V
11
30
HW+
DVL
10
31
HW!
DWH
9
32
VTH
VS_W
8
33
CT2
DWL
7
34
PWM
N.C.
6
35
CT1
RNF
5
36
CAGC
LOCPL
4
37
VDEG
AL
3
38
MCT2
FG
39
Symbol
GND
FG
AL
LOCPL
RNF
N.C.
DWL
VS_W
DWH
DVL
VS_V
DVH
PGND
DUL
VS_U
DUH
C_M
C_P
VG
VCC
2
40
1
GND
COSC
●Pin description
Description
TEST terminal
Output mode selection terminal
Normal rotation/reversal rotation switch terminal
1FG / 3FG switch terminal
Stand by terminal
Internal standard power supply terminal
Hall input terminal
Hall input terminal
Hall input terminal
Hall input terminal
Hall input terminal
Hall input terminal
Control input terminal(DC)
MUTE return and uptime setting terminal
Control input terminal(PWM)
Lock protection time setting terminal
Capacitor for phase amends
Phase adjustment control
CT2 connection for capacitor discharge terminal
PWM frequency setting terminal
TSZ02201-0G2G0BE00010-1-2
03.AUG.2012 Rev.002
Datasheet
BD16805FV-M
●Ordering Information
B
D
1
6
8
0
5
F
V
-
Package
FV: SSOP-B40
ME2
Packaging and forming specification
E2: Embossed tape and reel
M: High reliability products
●Physical Dimension Tape and Reel Information
SSOP-B40
<Tape and Reel information>
13.6 ± 0.2
(MAX 13.95 include BURR)
2000pcs
Direction
of feed
0.5 ± 0.2
1
E2
The direction is the 1pin of product is at the upper left when you hold
( reel on the left hand and you pull out the tape on the right hand
)
20
0.15 ± 0.1
0.1
1.8 ± 0.1
Embossed carrier tape
Quantity
21
5.4 ± 0.2
7.8 ± 0.3
40
Tape
0.1
S
0.65
0.22 ± 0.1
0.08
M
1pin
Reel
(Unit : mm)
Direction of feed
∗ Order quantity needs to be multiple of the minimum quantity.
●Marking Diagram
BD16805FV
LOT No.
1PIN MARK
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BD16805FV-M
●Electrical characteristics(Unless otherwise noted, VCC = 8V~18V, Ta = -40℃~110℃,Hall input amplitude=100mVpp,
COSC=1000pF, Between C_P and C_M 0.1µF, between VG and VCC 0.1µF, CAGC=1µF, VS_U, VS_V, VS_W =GND ※1)
Parameter
Limits
Symbol
Unit
MIN.
TYP.
MAX.
Condition
【Whole】
Circuit current 1
ICC1
-
0
10
µA
STB=L
※2
Circuit current 2
ICC2
-
15.2
30.4
mA
IB
-10
0
10
µA
Input level
VINH
45
-
-
mVpp
Range of phase input
VHAR
1.3
-
3.7
V
VREG
5.2
5.5
5.8
V
"L" Range of level voltage
VSTBL
0
-
1.0
V
"H" Range of level voltage
VSTBH
3.0
-
VREG
V
Outflow current
ISTBL
-
-
10
µA
VSTB=0V
Inflow current
ISTBH
20
40
80
µA
VSTB=5V
"L" Range of level voltage
VPWML
0
-
1.0
V
"H" Range of level voltage
VPWMH
3.0
-
VREG
V
Outflow current
IPWML
-
-
10
µA
VPWM=0V
Inflow current
IPWMH
25
50
100
µA
VPWM=5V
Output resistance
RPWM
80
200
320
k
Input dead zone output ON DUTY1
ONDUTY1
9.5
12.5
15.5
%
Figure -4 reference
Input dead zone output OFF DUTY1
OFFDUTY1
4.5
7.5
10.5
%
Figure -4 reference
Input dead zone output OFF DUTY2
OFFDUTY2
95.5
97.5
99.5
%
Figure -4 reference
Input dead zone output ON DUTY2
ONDUTY2
90.5
92.5
94.5
%
Figure -4 reference
Input dead zone hysteresis width 12
DUTYHYS12
3
5
7
%
Figure -4 reference
Voltage L of torque input mask
TQML
0.5
2.5
4.5
%
VMODESEL=H Figure -8 reference
Predriver output DUTY1
DUTY 1
49.1
56.6
64.1
%
VTH=1.0V ※4 Figure -9 reference
Predriver output DUTY2
DUTY 2
59.2
66.7
74.2
%
VTH=2.0V ※4 Figure -9 reference
Predriver output DUTY3
DUTY 3
65.8
73.3
80.8
%
VTH=2.4V ※4 Figure -9 reference
Predriver output DUTY4
DUTY 4
75.7
83.2
90.7
%
VTH=2.9V ※4 Figure -9 reference
Range of Phase adjustment control
VVDEG
27
30
33
deg
VDEG=0V
Phase adjustment control accuracy
FHDEG
-3
0
3
deg
VDEG=2.5V
STB=H、VTH=0V
VS_U,VS_V,VS_W=open
【Hall amplifier】
Input bias current
Both sides input level
【VREG terminal】
VREG voltage
At -20mA SOURCE
※3
【STB terminal】
【PWM terminal】
【VTH terminal】
【VDEG terminal】
※1 VS_U, VS_V, VS_W=GND only at measuring electric characteristics. In normal operation, please connect to motor output of each phase
※2 Please set input pins (PWM pin、FR pin、MODESEL pin、VDEG pin、FGSW pin、VTH pin、MCT2 pin) to 0V
※3 Please connect to phase compensation capacitor 1µF or more between the VREG and GND.
※4 Measure output DUTY with condition of applying 2.5Vpp standard ±100mV DC to hall inputs and 2.5Vpp to COSC in Test mode.
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Datasheet
BD16805FV-M
●Electrical characteristics(Unless otherwise noted, VCC = 8V~18V, Ta = -40℃~110℃,Hall input amplitude=100mVpp,
COSC=1000pF, Between C_P and C_M 0.1µF, between VG and VCC 0.1µF, CAGC=1µF, VS_U, VS_V, VS_W =GND ※1)
Parameter
Limits
Symbol
Unit
Condition
MIN.
TYP.
MAX.
FOSC
17.5
25
32.5
kHz
"L" Range of level voltage
VFRL
0
-
1.0
V
"H" Range of level voltage
VFRH
3.0
-
VREG
V
Outflow current
IFRL
-
-
10
µA
VFR=0V
Inflow current
IFRH
25
50
100
µA
VFR=5V
1FG Range of level voltage
VFG1L
0
-
1.0
V
3FG Range of level voltage
VFG3H
3.0
-
VREG
V
Outflow current
IFG1L
-
-
10
µA
VFGSW=0V
Inflow current
IFG3H
25
50
100
µA
VFGSW=5V
"L" Range of level voltage
VMODEL
0
-
1.0
V
"H" Range of level voltage
VMODEH
3.0
-
VREG
V
Outflow current
IMODEL
-
-
10
µA
VMODESEL=0V
Inflow current
IMODEH
25
50
100
µA
VMODESEL=5V
"L" Range of level voltage
VALL
0
-
0.3
V
AL=5V input(PULL UP100k )
"H" Range of level voltage
VALH
4.8
5
-
V
AL=5V input(PULL UP100k )
"L" Range of level voltage
VFGL
0
-
0.3
V
FG=5V input(PULL UP100k )
"H" Range of level voltage
VFGH
4.8
5
-
V
FG=5V input(PULL UP100k )
-10
-
10
mV
【COSC terminal】
OSC frequency
COSC=1000pF ※5
【FR terminal】
【FGSW terminal】
【MODESEL terminal】
【AL terminal】
【FG terminal】
【LOCPL terminal】
Overcurrent detection
VOCP
COMP offset
OFFSET
OCP MUTE delay time
CPMUTET0
-
-
20
µs
OCP release delay time
OCPMUTET
15
36
65
µs
ILOCK
0.5
1
1.5
µA
RONCT1
-
81
320
ILEAKCT1
-
0
1
µA
CT1 Comparison H Voltage
VLOCKP_H
3.40
3.85
4.30
V
CT1 Comparison L Voltage
VLOCKP_L
0.45
0.55
0.65
V
LOCPL=20mV、200mV
【CT1 terminal】
SOURCE current
for lock protection detection
CT1
SW ON resistance
for Discharge
CT1 Leakage at SW OFF for
Discharge
Figure-3 reference
Figure-3 reference
Figure-3 reference
※5 Please use COSC within the range of 470pF-10000pF.
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Datasheet
BD16805FV-M
●Electrical characteristics(Unless otherwise noted, VCC = 8V~18V, Ta = -40℃~110℃,Hall input amplitude=100mVpp,
COSC=1000pF, Between C_P and C_M 0.1µF, between VG and VCC 0.1µF, CAGC=1µF, VS_U, VS_V, VS_W =GND ※1)
Parameter
Limits
Symbol
Unit
MIN.
TYP.
MAX.
Condition
【MCT2 terminal】
"L" Range of level voltage
VMCT2L
0
-
1.0
V
"H" Range of level voltage
VMCT2H
3.0
-
VREG
V
Inflow current
IMCT2L
-
-
10
µA
VMCT2=0V
Outflow current
IMCT2H
25
50
100
µA
VMCT2=5V
RONCT2
-
105
260
ILEAKCT2
-
0
1
2×VCC
2×VCC
2×VCC
-1.5
-0.5
+0.5
VCC
VCC
VCC
+10
+11.5
+13
-
0.6
1.0
CT2
STBY
SW ON resistance
VMCT2=5V
for Discharge
CT2 Leakage at SW OFF for
Discharge
µA
【VG terminal】
Pressure voltage 1
VG1
Pressure voltage 2
VG2
Pressure voltage 3
VG3
V
VCC=8V~11.5V
V
VCC=11.5V~18V
V
VG drop voltage
at -5mA SOURCE
【Pre driver output terminal】
D*H
H voltage1
VOHH1
23
-
31
V
VCC=18V ※6
D*H
L voltage1
VOHL1
-
0
0.2
V
VCC=18V ※6
D*L
H voltage1
VOLH1
10
-
13
V
VCC=18V ※6
D*L
L voltage1
VOLL1
-
0
0.2
V
VCC=18V ※6
D*H
H voltage2
VOHH2
13.5
-
16.5
V
VCC=8V ※6
D*H
L voltage2
VOHL2
-
0
0.2
V
VCC=8V ※6
D*L
H voltage2
VOLH2
7.5
-
8.5
V
VCC=8V ※6
D*L
L voltage2
VOLL2
-
0
0.2
V
VCC=8V ※6
D*H Standing up slew rate 1
VOHUSR1
14
-
55
V/µs
VCC=18V ※6
D*H Standing fall slew rate 1
VOHDSR1
30
-
120
V/µs
VCC=18V ※6
D*L Standing up slew rate 1
VOLUSR1
14
-
60
V/µs
VCC=18V ※6
D*L Standing fall slew rate 1
VOLDSR1
20
-
85
V/µs
VCC=18V ※6
D*H Standing up slew rate 2
VOHUSR2
14
-
45
V/µs
VCC=8V ※6
D*H Standing fall slew rate 2
VOHDSR2
14
-
70
V/µs
VCC=8V ※6
D*L Standing up slew rate 2
VOLUSR2
14
-
50
V/µs
VCC=8V ※6
D*L Standing fall slew rate 2
VOLDSR2
14
-
55
V/µs
VCC=8V ※6
TDEAD
0.30
0.95
3.00
µs
VOVP
25
30
35
V
VUVLO
5.3
5.8
6.3
V
D*H D*L
Dead Time(Standing up)
【Others】
Off voltage at overvoltage
Off voltage at reduce voltage
※6 Measure when the capacitor of 10000pF is connected with the output as external MOS-FET gate capacitance.
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Datasheet
BD16805FV-M
Figure -1(a) Timing chart(FR=L:Forward)
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BD16805FV-M
Figure -1(b) Timing chart(FR=H:Reverse)
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BD16805FV-M
●Operation explanation
1. The state of the output at each MUTE
Protection mode
AL
(Alarm signal )
Pre driver output
(D*H)
Pre driver output
(D*L)
Charge pump output
Over current protection
Low
Low
Low
ACTIVE
Lock protection
Low
Low
Low
ACTIVE
Under voltage protection
Hi
Low
Low
ACTIVE
Over voltage protection
Low
Low
Low
MUTE
Thermal shutdown
Low
Low
Low
ACTIVE
2. Current limit (overcurrent protection circuit)
Current limit current I is decided by the resistance setting of LOCPL and the RNF current detection terminal.
A current limit operates by the value decided as shown in the figure below by the following calculation types.
Please use the setting range of LOCPL with 20mV-200mV.
Please use it noting S/N when setting LOCPL by a low value.
I=V1 / RNF
External Power Mos
LOCPL
V1
Current I
RNF
RNF
Figure -2(a) Overcurrent limit equivalent circuit diagram
Figure -2(b) Overcurrent Protection Timing chart
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Datasheet
BD16805FV-M
3. Lock protection function
The lock protection circuit doesn't change the hall input, detect the lock, and fix the pre driver full power to Low.
Terminal CT1 capacitor and lock protection ON time(TON1)
TON1(Charging time)=(VLOCKP_H- VLOCKP_L)/(ILOCK2/C)
C:CT1 Capacity of terminal external capacitor
ILOCK2:SOURCE current for lock protection detection (TYP.:1µA)
VLOCKP_H:Terminal CT1 comparison H voltage(TYP.:3.85V)
VLOCKP_L:Terminal CT1 comparison L voltage(TYP.:0.55V)
Reference value (example)
At CT1=1µF
TON1=(3.85-0.55)V/(1µA/1µF)=3.3s
At CT1=10µF
TON1=(3.85-0.55)V/(1µA/10µF)=33s
Our company is recommending the range of 0.1µF-10µF to the capacitor of CT1.
CT1 is shorted to GND when the lock protection time is not set.
Constant current
1uA[ TYP ]
CT1
SW for discharge
Figure -3 CT1 Charge Discharge equivalent circuit chart
When the lock protection is released and it reactivates, the CT1 capacitor should be completely discharged.
Discharge SW of Figure-3 is turned on to integral value 50% as shown in Figure-7, 8. Please raise PWM input DUTY
after discharging the CT1 capacitor.
(Reference)
- /(C×R)
The discharge time is decided by the expression of ∆V=(1-e t
)×∆V(initial value).
At t=C×R, it becomes the standing fall time of 63.2%.
ON resistance of SW for CT1 discharge becomes MAX.=320 .
(Refer to electric characteristic CT1 terminal item P.3. )
4. Overpower-supply voltage output OFF function
Overpower-supply voltage output OFF function is built into as output protection at the overvoltage. When the impressed
voltage to the terminal VCC becomes 30V (TYP.) or more, all Pre driver output terminal becomes Low. However, it is
only STB=Hi as the operation condition. Please note that this function doesn't operate because the current supply also
stop in IC at STB=Low (At the standby).
Overpower-supply voltage output OFF function is built into. Please do not exceed the absolute maximum rating so that
there is a possibility of destruction when the absolute maximum rating of the power-supply voltage is exceeded.
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Datasheet
BD16805FV-M
5. Torque input instruction<PWM input DUTY・VTH(DC input)>
This circuit compares OSC (triangular wave) and the voltage proportional to torque.
Figure -4 PWM INPUT DUTY、VTH(DC
INPUT)
vs
OUTPUT
DUTY(MODESEL=L)
Integral value in Figure-4 is measured in 120°inter val (please refer to Figure-1(a), (b))
Hysterics has been installed in PWM input DUTY (VTH input). 12.5%(0.41V) ( TYP.) > is PWM DUTY of standing up
in the lower side, and 7.5%(0.25V) ( TYP.) is PWM DUTY of the standing fall.
97.5%(3.2V) ( TYP.) is PWM DUTY of the standing fall in the upper side, and 92.5%(3.05V) ( TYP.) is PWM DUTY
of standing up. PWM input DUTY (VTH input) can control the torque output voltage by 12.5%(0.41V)-97.5%(3.2V) ( TYP.).
It becomes similar set about 12.5%-97.5% torque output voltage at MODESEL=HI.
OSC (triangular wave) and the voltage proportional to torque are compared by 2.5V standard. Figure-5 becomes the
torque output voltages and shape of waves of triangular wave when VTH=2.5V is input.
The amplitude of the torque output voltage compared with a triangular wave changes when VTH is changed
such as Figure-4.
Figure -5
OCS(Triangular wave) and TORQUE
OUTPUT
VOLTAGE
(Using the PWM or DC input)
The capacitor is connected with CT2 and be short-circuited with the terminal VTH and use it when using PWM input
DUTY control. Please impress the input to VTH and control when using VTH(DC input) control.
Please install the R-C filter by external when installing the start delay. When DC and PWM are input, it is possible
to discharge of the capacitor in the terminal MCT2.
6. OSC (PWM oscillation frequency)
The oscillation frequency can be arbitrarily set with an external capacitor (terminal COSC). The theoretical formula
of the oscillation frequency is as follows.
Oscillation frequency [ kHz ]=1/(COSC/25µA)
Please use the range where external capacitor (COSC) can be set with 470pF-10000pF.
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7. Start time and the deceleration time (brake)
When making it to ACTIVE(STB=Hi) from the standby(STB=Low), start time can be given to the output. The time of the
deceleration (brake) operates the same time as a start time.
The start return time and the deceleration time are indicated in Figure-6.
Because the start return time is decided CT2 external capacitor and internal resistance of IC, it is possible to adjust it
with CT2 external capacitor.
(The following Refer to the expression of start and deceleration time)
(Reference)Terminal CT2 capacitor, start time, and deceleration time (TON2) are
TON2=C×R
C:Capacity of terminal CT2 external capacitor
R:Internal resistance of IC(TYP.:200k )
Integral value [%]
Reference value(Example)
At CT2=1µF,
TON2=1µF×200k =0.2s
At CT2=10µF,
TON2=10µF×200k =2.0s
Figure -6 Start time・Deceleration (brake)
timing chart
A set value of CT2 holds PWM smooth input concurrently.
The shake accuracy after smoothness influences output DUTY accuracy. Please confirm the DUTY change and set the
optimal value.
The smoothness of PWM is recommended to set the cutoff frequency by 1/10 or less of the PWM input frequencies.
Please consult once when the PWM input frequency is used excluding the above-mentioned regulations.
(Reference)
fc(cutoff frequency)=1/(2πCR)
R: TYP.:200k by internal resistance of IC(RPWM)
C:Capacity of terminal CT2 external capacitor
When making it to ACTIVE(STB=Hi) from the standby(STB=Low), the CT2 capacitor should be
completely discharged. Please fix the PWM input to DUTY 0% and discharge it by 200k (TYP.)
resistance or please make to SW=HI(MCT2=5V) (ON resistance MAX.=260 ) for MCT2 discharge for
the discharge of the CT2 capacitor (Figure-4).
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8. Output mode selection
The output mode form becomes and two following selections become possible by the voltage of
the terminal MODESEL is impressed to L(0V - 1.0V) and H(3.0V - VREG).
Figure -7 PWM input DUTY(VTH input) vs
Figure -8
OUTPUT
PWM input DUTY(VTH input) vs
OUTPUT
DUTY (MODESEL=L)
DUTY (MODESEL=H)
9. TEST terminal
It is a test terminal among our company and please fix TEST terminal to Low.
10. External constant
Our company designs within the range of an external constant described in application circuit diagram.
Please consult our company once though there is a thing that the characteristic cannot guarantee, when the change is
necessary.
11. Pre driver Output DUTY
Pre driver Output DUTY is measured in Test mode.
Peak voltage of torque output at VTH=1V, 2V, 2.4V and 2.9V is shown at ①~④ in Figure-9(a) in measurement of pre
driver output DUTY. For measuring pre driver output DUTY, hall input is applied with DC voltage considerably to torque peak
voltage of ①~④ (hall input amplitude is assumed as 100mVpp). In this condition, torque output voltage is shown in
Figure-9(b) as ①’~④’. In addition, triangular waveform amplitude of COSC becomes 2.2Vpp. DUTY of pre driver output is
measured by comparison of voltage of ①’~④’ and triangular waveform 2.2Vpp
Figure -9
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● Cautions on use
1) We are careful enough for quality control about this IC. So, there is no problem under normal operation, excluding that
it exceeds the absolute maximum ratings. However, this IC might be destroyed when the absolute maximum ratings,
such as impressed voltages (VCC) or the operating temperature range,
is exceeded, and whether the destruction is short circuit mode or open circuit mode cannot be specified. Please take
into consideration the physical countermeasures for safety, such as fusing, if a particular mode that exceeds the
absolute maximum rating is assumed.
2) GND line
The ground line is where the lowest potential and transient voltages are connected to the IC.
3) Input terminal
Please do not add the voltage to each input terminal when you do not impress VCC to IC.
4) BEMF
BEMF might be changed depending on use conditions and an individual characteristic of the environment
and the motor. Please confirm there is no problem in the operation of IC by BEMF.
5) VCC
Please put coupling capacitor 10 F or more in the power supply between the power supply and GND.
6) Power dissipation
Power dissipation is changed by the state of the substrate mounting and the mounting environment of IC,
and take care enough about the heat design.
7) Power consumption
Power consumption changes greatly depending on the power-supply voltage and the output current. Please design
heat after considering the thermal resistance data and the transition thermal resistance data, etc. to consider power
dissipation, and so as not to exceed ratings.
8) ASO
Please set not to exceed ASO (area of safe operation) the output current and the power-supply voltage.
9) The circuit that limits the inrush current is not built into this IC. Therefore, please consider physical measures of putting
the current limitation resistance.
10) There is a possibility that the trouble of the malfunction occurs if the potential of the output terminal widely swings to
the potential of GND or less in this IC according to conditions such as the generation of heat condition, power-supply
voltages, and the use motors. For that case, please consider measures where trouble doesn't occur as shot key diode
is added between GND-output.
11) Radiation
This IC doesn't do the design that assumes use in strong electromagnetic field. Please confirm there is no problem in
the operation of IC by the substrate pattern layout and the circuit constant enough.
12) Thermal shutdown
The thermal shutdown circuit is built into as an overheating protection measures this IC. When the Chip temperature
of IC becomes 175℃(TYP.) or more, the output is opened. It returns to normal operation when becoming
150℃(TYP.) or less.
13) FG output signal
When the noise is generated in the hall signal, the FG signal might do chattering. Especially, the possibility that
chattering is caused as the power-supply voltage touches rises when rapidly changing from the normal rotation into
the reversal rotation or from the reversal rotation into the normal rotation. CAPA is inserted between the hall input
terminals to decrease the noise of the hall signal, and the attention such as enlarging the input level is necessary
when using it like this.
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14) Wrong direction assembly of the device.
Use caution when positioning the IC for mounting on printed circuit boards. The IC may be damaged if there is any
connection error.
15) Regarding input pin of the IC l
This monolithic IC contains P+ isolation and P substrate layers between adjacent elements to keep them isolated.
PN junctions are formed at the intersection of these P layers with the N layers of other elements, creating a parasitic
diode or transistor. For example, the relation between each potential is as follows:
When GND > Pin A and GND > Pin B, the PN junction operates as a parasitic diode.
When Pin B > GND > Pin A, the PN junction operates as a parasitic transistor.
Parasitic diodes can occur inevitably in the structure of the IC. The operation of parasitic diodes can result in mutual
interference among circuits, operational faults, or physical damage. Accordingly, methods by which parasitic diodes
operate, such as applying a voltage that is lower than the GND (P substrate) voltage to an input pin, should not be
used
Figure -10 Simplified structure of IC
Status of this document
The Japanese version of this document is formal specification. A customer may use this translation version only for a reference
to help reading the formal version.
If there are any differences in translation version of this document formal version takes priority.
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Notice
Precaution on using ROHM Products
1.
If you intend to use our Products in devices requiring extremely high reliability (such as medical equipment (Note 1),
aircraft/spacecraft, nuclear power controllers, etc.) and whose malfunction or failure may cause loss of human life,
bodily injury or serious damage to property (“Specific Applications”), please consult with the ROHM sales
representative in advance. Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way
responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of any
ROHM’s Products for Specific Applications.
(Note1) Medical Equipment Classification of the Specific Applications
JAPAN
USA
EU
CHINA
CLASSⅢ
CLASSⅡb
CLASSⅢ
CLASSⅢ
CLASSⅣ
CLASSⅢ
2.
ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor
products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate
safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which
a failure or malfunction of our Products may cause. The following are examples of safety measures:
[a] Installation of protection circuits or other protective devices to improve system safety
[b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure
3.
Our Products are not designed under any special or extraordinary environments or conditions, as exemplified below.
Accordingly, ROHM shall not be in any way responsible or liable for any damages, expenses or losses arising from the
use of any ROHM’s Products under any special or extraordinary environments or conditions. If you intend to use our
Products under any special or extraordinary environments or conditions (as exemplified below), your independent
verification and confirmation of product performance, reliability, etc, prior to use, must be necessary:
[a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents
[b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust
[c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2,
H2S, NH3, SO2, and NO2
[d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves
[e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items
[f] Sealing or coating our Products with resin or other coating materials
[g] Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of
flux is recommended); or Washing our Products by using water or water-soluble cleaning agents for cleaning
residue after soldering
[h] Use of the Products in places subject to dew condensation
4.
The Products are not subject to radiation-proof design.
5.
Please verify and confirm characteristics of the final or mounted products in using the Products.
6.
In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse. is applied,
confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power
exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect
product performance and reliability.
7.
De-rate Power Dissipation (Pd) depending on Ambient temperature (Ta). When used in sealed area, confirm the actual
ambient temperature.
8.
Confirm that operation temperature is within the specified range described in the product specification.
9.
ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in
this document.
Precaution for Mounting / Circuit board design
1.
When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product
performance and reliability.
2.
In principle, the reflow soldering method must be used; if flow soldering method is preferred, please consult with the
ROHM representative in advance.
For details, please refer to ROHM Mounting specification
Notice - SS
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Precautions Regarding Application Examples and External Circuits
1.
If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the
characteristics of the Products and external components, including transient characteristics, as well as static
characteristics.
2.
You agree that application notes, reference designs, and associated data and information contained in this document
are presented only as guidance for Products use. Therefore, in case you use such information, you are solely
responsible for it and you must exercise your own independent verification and judgment in the use of such information
contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses
incurred by you or third parties arising from the use of such information.
Precaution for Electrostatic
This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper
caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be
applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron,
isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control).
Precaution for Storage / Transportation
1.
Product performance and soldered connections may deteriorate if the Products are stored in the places where:
[a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2
[b] the temperature or humidity exceeds those recommended by ROHM
[c] the Products are exposed to direct sunshine or condensation
[d] the Products are exposed to high Electrostatic
2.
Even under ROHM recommended storage condition, solderability of products out of recommended storage time period
may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is
exceeding the recommended storage time period.
3.
Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads
may occur due to excessive stress applied when dropping of a carton.
4.
Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of
which storage time is exceeding the recommended storage time period.
Precaution for Product Label
QR code printed on ROHM Products label is for ROHM’s internal use only.
Precaution for Disposition
When disposing Products please dispose them properly using an authorized industry waste company.
Precaution for Foreign Exchange and Foreign Trade act
Since our Products might fall under controlled goods prescribed by the applicable foreign exchange and foreign trade act,
please consult with ROHM representative in case of export.
Precaution Regarding Intellectual Property Rights
1.
All information and data including but not limited to application example contained in this document is for reference
only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any
other rights of any third party regarding such information or data. ROHM shall not be in any way responsible or liable
for infringement of any intellectual property rights or other damages arising from use of such information or data.:
2.
No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any
third parties with respect to the information contained in this document.
Other Precaution
1.
This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM.
2.
The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written
consent of ROHM.
3.
In no event shall you use in any way whatsoever the Products and the related technical information contained in the
Products or this document for any military purposes, including but not limited to, the development of mass-destruction
weapons.
4.
The proper names of companies or products described in this document are trademarks or registered trademarks of
ROHM, its affiliated companies or third parties.
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General Precaution
1. Before you use our Pro ducts, you are requested to care fully read this document and fully understand its contents.
ROHM shall n ot be in an y way responsible or liabl e for fa ilure, malfunction or acci dent arising from the use of a ny
ROHM’s Products against warning, caution or note contained in this document.
2. All information contained in this docume nt is current as of the issuing date and subj ect to change without any prior
notice. Before purchasing or using ROHM’s Products, please confirm the la test information with a ROHM sale s
representative.
3.
The information contained in this doc ument is provi ded on an “as is” basis and ROHM does not warrant that all
information contained in this document is accurate an d/or error-free. ROHM shall not be in an y way responsible or
liable for an y damages, expenses or losses incurred b y you or third parties resulting from inaccur acy or errors of or
concerning such information.
Notice – WE
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