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Rohm Semiconductor Electronic Components Datasheet

BD6964F Datasheet

Standard Single-phase Full wave Fan motor driver

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BD6964F pdf
Datasheet
DC Brushless Fan Motor Driver
Standard Single-phase Full wave
Fan motor driver
BD6964F
Description
This is the summary of application for BD6964F. BD6964F can drive FAN motor silently by BTL soft switching, and it can
control rotational speed by PWM signal.
Features
BTL soft switching drive
PWM speed control
Quick start function
Lock protection and auto restart
(without external capacitor)
Lock alarm signal (AL) output
Package
SOP8
W(Typ) x D(Typ) x H(Max)
5.00mm x 6.20mm x 1.71mm
Application
PC, PC peripheral component
(Power supply, VGA card, case FAN etc.)
BD player, Projector etc.
Absolute Maximum Ratings
Parameter
Symbol
Limit
Supply Voltage
VCC 15
Power Dissipation
Pd 0.78(Note 1)
Operating Temperature
Topr
-40 to +105
Storage Temperature
Tstg -55 to +150
Output Voltage
VOMAX
15
Output Current
IOMAX
1000(Note 2)
AL Signal Output Voltage
VAL
15
AL Signal Output Current
IAL
10
Junction Temperature
Tjmax
150
(Note 1) Reduce by 6.24mW/°C over 25°C. (On 70.0mm×70.0mm×1.6mm glass epoxy board)
(Note 2) This value is not to exceed Pd.
SOP8
Unit
V
W
°C
°C
V
mA
V
mA
°C
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
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product is not designed protection against radioactive rays
1/13
TSZ02201-0H1H0B100280-1-2
20.May.2014 Rev.002


Rohm Semiconductor Electronic Components Datasheet

BD6964F Datasheet

Standard Single-phase Full wave Fan motor driver

No Preview Available !

BD6964F pdf
BD6964F
Recommended Operating Conditions
Parameter
Symbol
Operating supply voltage range VCC
Hall input voltage range
VH
Limit
3.3 to 14
0 to VCC/3
Unit
V
V
Datasheet
Electrical Characteristics (Unless otherwise specified Ta=25°C, Vcc=12V)
Parameter
Circuit Current 1
Symbol
ICC1
Min
1
Limits
Typ
3
Max
5
Unit Conditions
mA PWM=GND
Characteristics
Figure 1
Circuit Current 2
ICC2
2
5
8 mA PWM=OPEN
Figure 2
Input Offset Voltage
VHOFS
-
- ±6 mV
-
PWM Input H Level
VPWMH
2.0
- Vcc+0.3 V
-
PWM Input L Level
VPWML
-0.3
-
0.8 V
-
PWM Input Current
IPWMH
11
22
33 µA PWM=5V
IPWML -42 -28 -14 µA PWM=GND
Figure 3
Figure 3
Input Frequency
Output Voltage
Input-output Gain
FPWM
VO
GIO
0.02
-
45
-
0.4
48
50 kHz
-
0.6
V
IO=300mA
Upper and Lower total
Figure 4 to 7
51 dB
-
AL Low Voltage
AL Leak Current
Lock Detection ON time
Lock Detection OFF time
VALL
IALL
tON
tOFF
- - 0.4
- - 20
0.35 0.50 0.65
3.5 5.0 6.5
V IAL=5mA
µA VAL=15V
s
s
Figure 8,9
Figure 10
Figure 11
Figure 12
Truth Table
H+
H
L
H
L
H-
PWM
OUT1
OUT2
L H(OPEN) H
L
H H(OPEN) L
H
L L L L AL normal operation :L(output is ON)
HLL L
lock detection :H(output is OFF)
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
2/13
TSZ02201-0H1H0B100280-1-2
20.May.2014 Rev.002


Part Number BD6964F
Description Standard Single-phase Full wave Fan motor driver
Maker ROHM
Total Page 17 Pages
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