BD6967FVM Datasheet PDF - ROHM Semiconductor
| Part Number | BD6967FVM | |
| Description | Standard Single-phase Full wave Fan Motor Driver | |
| Manufacturers | ROHM Semiconductor | |
| Logo |  |
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Datasheet
DC Brushless Fan Motor Driver
Standard Single-phase Full wave
Fan Motor Driver
BD6967FVM
●General Description
This is the summary of application for BD6967FVM. BD6967FVM can drive FAN motor silently by BTL soft switching, and it
can control rotational speed by direct PWM and DC voltage speed control.
●Features
Small package (MSOP10)
BTL soft switching drive
PWM speed control
Direct PWM and DC voltage control available
Low duty start up function
Quick start function
Constant voltage output for hall element
Lock protection and auto restart
(without external capacitor)
Rotating speed pulse signal (FG) output
●Applications
PC, PC peripheral component
(Power supply, VGA card, case FAN etc.)
BD player, Projector etc.
●Package(s)
MSOP10
W(Typ.) x D(Typ.) x H(Max.)
2.90mm x 4.00mm x 0.90mm
MSOP10
●Absolute maximum ratings
Parameter
Symbol
Limit
Supply voltage
Vcc 15
Power dissipation
Pd 585*
Operating temperature
Topr
-40 to +105
Storage temperature
Tstg -55 to +150
Output voltage
Vomax
15
Output current
Iomax
800**
Hall input terminal voltage
Vhall
7
PWM terminal voltage
Vpwm
7
FG signal output voltage
Vfg
15
FG signal output current
Ifg
10
HB output current Ihb 10
REF output current
Iref
10
Junction temperature
Tjmax
150
* Reduce by 4.68mW/℃ over Ta=25ºC(On 70mm×70mm×1.6mm glass epoxy board)
** This value is not to exceed Pd
●Operating conditions
Parameter
Operating supply voltage range
Hall input voltage range
Symbol
Vcc
Vh
Limit
3.3 to 14
0.4 to Vcc/3
Unit
V
mW
℃
℃
V
mA
V
V
V
mA
mA
mA
℃
Unit
V
V
○Product structure：Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays
.www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
1/12
TSZ02201-0H1H0B100040-1-2
21.Mar.2013 Rev.002
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BD6967FVM
Datasheet
3) Rotational speed adjusting application
This application circuit can set the FAN rotational speed without the change of motor coil by changing resistor value of
PCB. The adjusting range of rotational speed is slower than full speed of the motor.
GN D
1
OU T2
2
HALL
0Ω to
5 00 Ω
H+
3
HB
4
H-
5
M
L oc k
Prot ectio n
+
-
TSD
Hall
Bias
OSC
+
-
-
+
Cont ro l
+
-
OUT1
10
Vcc
9
REF
8
PWM
7
FG
6
0 .1 u F
to 1uF
R1
0. 0 1u F
to 0.1uF
Drive duty can be
R2 adjusted by the value
of R1 and R2.
P.7
R1,R2 ：1kΩ to 100kΩ
*If you use only full speed, connect the PWM terminal to REF terminal.
●Description of operations
1) Lock protection and automatic restart circuit
Motor rotation is detected by hall signal, and lock detection ON time (Ton) and lock detection OFF time (Toff) are set
by IC internal counter. External part (C or R) is not required. Timing chart is shown in Fig.13.
Idling
H+
OUT1
OUT2
FG
Toff Ton
OutputTr OFF ON
Motor Lock
locking detection
Depends on hall signal
(H in this figure)
Lock Recovers
release normal
operation
Fig.13 Lock protection timing chart
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/12
TSZ02201-0H1H0B100040-1-2
21.Mar.2013 Rev.002
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for BD6967FVM electronic component. |
| Information | Total 16 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ BD6967FVM.PDF Datasheet ] | |
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