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Datasheet
DC Brushless Motor Drivers for Fans
Standard Single-phase Full wave
Fan Motor Driver
BD6982FVM
Description
This is the summary of application for BD6982FVM. BD6982FVM can drive FAN motor silently by BTL soft switching.
Features
Small package (MSOP8)
BTL soft switching drive
Constant voltage output for hall element
Lock protection and auto restart
(without external capacitor)
Lock alarm signal (AL) output
Applications
PC, PC peripheral component
(Power supply, VGA card, case FAN etc.)
BD player, Projector etc.
Package
MSOP8
W(Typ) x D(Typ) x H(Max)
2.90mm x 4.00mm x 0.90mm
MSOP8
Absolute Maximum Ratings
Parameter
Symbol
Rating
Supply Voltage
Power Dissipation
VCC
Pd
18
0.58(Note 1)
Operating Temperature
Topr
-40 to +105
Storage Temperature Tstg -55 to +150
Junction Temperature
Tjmax
150
Output Voltage
Output Current
Hall Input Voltage
AL Signal Output Voltage
VOMAX
IOMAX
VH
VAL
18
800(Note 2)
7
18
AL Signal Output Current
IAL
10
HB Output Current
IHB
10
(Note 1) Reduce by 4.68mW/°C over 25°C. (On 70.0mm×70.0mm×1.6mm glass epoxy board)
(Note 2) This value is not to exceed Pd.
Unit
V
W
°C
°C
°C
V
mA
V
V
mA
mA
Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated
over the absolute maximum ratings.
Product structureSilicon monolithic integrated circuit
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product has no designed protection against radioactive rays
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BD6982FVM
Recommended Operating Conditions
Parameter
Operating Supply Voltage Range
Hall Input Voltage Range
Symbol
VCC
VH
Limit
2.8 to 16
0.4 to Vcc/4
Unit
V
V
Electrical Characteristics (Unless otherwise specified Ta=25°C, Vcc=12V)
Parameter
Symbol
Circuit Current
Hall Bias Voltage
Hall Input Offset
Input-output Gain
Output Voltage
AL Low Voltage
AL Leak Current
Lock Detection ON Time
Lock Detection OFF Time
Lock Detection Time Ratio
ICC
VHB
VOFS
GIO
VO
VALL
IALL
tON
tOFF
rLD
Min.
1.5
1.1
0
53
0.20
-
0
0.35
2.0
-
Limit
Typ.
4
1.2
-
55
0.45
Max.
8
1.3
±6
57
0.70
0.2 0.4
-5
0.50 0.65
3.0 4.0
6-
Unit Conditions
mA
V IHB=-3mA
mV
dB
V Io=200mA
Upper and Lower total
V IAL=5mA
µA VAL=18V
s
s
- rLD = tOFF / tON
Characteristics
Figure 1
Figure 2,3
-
-
Figure 4 to 7
Figure 8,9
-
Figure 10
Figure 10
-
Truth Table
H+
H
L
H-
OUT1
OUT2
LHL
HLH
AL normal operation :L(output is ON)
lock detection :H(output is OFF)
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BD6982FVM
Reference Data
8 1.4
6
105°C
4 25°C
-40°C
2
Operating Range
0
0 3 6 9 12 15 18
Supply Voltage, VCC [V]
Figure 1. Circuit Current
1.3
16V
1.2 12V
2.8V
1.1
1.0
0
2468
HB Current, IHB [mA]
Figure 2. Hall Bias Voltage
(Voltage Characteristics)
10
1.4
1.3
1.2 105°C
25°C
-40°C
1.1
1.0
0
2468
HB Current, IHB [mA]
Figure 3. Hall Bias Voltage
(Temperature Characteristics)
10
2.0
1.6
1.2
0.8
0.4
0.0
0.0
2.8V
12V
16V
0.2 0.4 0.6
Output Current, IO [A]
Figure 4. Output H Voltage
(Voltage Characteristics)
0.8
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BD6982FVM
2.0
1.6
105°C
1.2
25°C
0.8
-40°C
0.4
0.0
0.0
0.2 0.4 0.6
Output Current, IO [A]
Figure 5. Output H Voltage
(Temperature Characteristics)
0.8
1.0
0.8
0.6
0.4
0.2
0.0
0.0
2.8V
12V
16V
0.2 0.4 0.6
Output Current,IO [A]
Figure 6. Output L Voltage
(Voltage Characteristics)
0.8
1.0
0.8
105°C
0.6
25°C
0.4 -40°C
0.2
0.0
0.0
0.2 0.4 0.6
Output Current,IO [A]
Figure 7. Output L Voltage
(Temperature Characteristics)
0.8
1.0
0.8
0.6
0.4
0.2
0.0
0
2.8V
12V
16V
246
AL Current, IAL [mA]
Fig.8 AL Output Voltage
(Voltage Characteristics)
8
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BD6982FVM
1.0
0.8
0.6
0.4
0.2
0.0
0
105°C
25°C
-40°C
246
AL Current, IAL [mA]
Figure 9. AL Output voltage
(Temperature Characteristics)
8
6.0
5.0
4.0
-40°C
3.0 25°C
105°C
2.0
Operating Range
tOFF
1.0
-40°C
25°C
105°C
0.0
03
tON
6 9 12 15
Supply Voltage, VCC [V]
18
Figure 10. Lock Detection Time
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
5/14
TSZ02201-0H1H0B100540-1-2
20.May 2015 Rev.003