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Rohm Semiconductor Electronic Components Datasheet

BD6966NUX Datasheet

5V Single-phase Full-wave Fan motor driver

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Datasheet
DC Brushless Fan Motor Driver
5V Single-phase Full-wave
Fan motor driver
BD6966NUX
Description
This is the summary of application for BD6966NUX that suit for notebook PC cooling fan motor. They employ Bi-CMOS
process and realize low ON resistor, and low power consumption and quiet drive.
Features
Small and thin package (VSON10 thickness:0.6mm)
BTL soft switching drive
PWM speed control
Low duty start up function and enable/disable
selectable
Quick start function
Stand-by function
Constant voltage output for hall element
Lock protection and auto restart
(without external capacitor)
Rotating speed pulse signal (FG) output
Package(s)
VSON010X3030
W(Typ.) x D(Typ.) x H(Max.)
3.00mm x 3.00mm x 0.60mm
Applications
Compact 5V fan such as notebook PC cooling fan
VSON010X3030
Absolute maximum ratings
Parameter
Symbol
Limit
Unit
Supply voltage
Vcc 7 V
Power dissipation
Pd
580*
mW
Operating temperature
Topr
-40 to +105
ºC
Storage temperature
Tstg -55 to +150 ºC
Output voltage
Vomax
7
V
Output current
Iomax
1000**
mA
FG signal output voltage
Vfg
7
V
FG signal output current
Ifg
10 mA
Hall bias output current
Ihb
10 mA
Junction temperature
Tjmax
150
ºC
* Reduce by 4.64mW/over Ta=25ºC(On 74.2mm×74.2mm×1.6mm glass epoxy board, Copper foil area 6.28mm2)
** This value is not to exceed Pd
Operating conditions
Parameter
Symbol
Limit
Unit
Operating supply voltage range Vcc
1.8 to 5.5
V
Hall input voltage range
Vh
0.4 to Vcc-1.1
V
Product structureSilicon monolithic integrated circuit This product is not designed protection against radioactive rays
.www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
1/12
TSZ02201-0H1H0B100140-1-2
5.Jul.2012 Rev.001


Rohm Semiconductor Electronic Components Datasheet

BD6966NUX Datasheet

5V Single-phase Full-wave Fan motor driver

No Preview Available !

BD6966NUX
Datasheet
Electrical characteristics(Unless otherwise specified Ta=25,Vcc=5V)
Parameter
Circuit current 1
Circuit current 2
(Stand-by mode)
Hall bias voltage
Input offset voltage
Limits
Symbol
Unit
Min. Typ. Max.
Conditions
Icc1 1 3 6 mA PWM=OPEN
Icc2 15 25 35 uA PWM=GND
Vhb 0.9 1.0 1.1 V Ihb=-3mA
Vofs
0
- ±6 mV
Characteristics
Fig.1
Fig.2
Fig.3
PWM input H level
Vpwmh 2.5
- Vcc+0.3 V
PWM input L level
PWM input current
Vpwml -0.3 - 0.8 V
Ipwmh
-
0
- μA PWM=Vcc
Ipwml -33 -25 -17 μA PWM=GND
-
-
-
PWM input frequency
SEL input L level
Output voltage
Input-output Gain
FG hysteresis voltage
FG low voltage
FG leak current
Fpwm
2
- 50 kHz
Vsell
-0.3
-
0.8
Vo - 0.4 0.6
V
SEL=L
Start duty assist ON
V
Io=300mA
Upper and Lower total
Gio
43 44.5 46
dB
Vhys
±5 ±10 ±15 mV
Vfgl - 0.12 0.3 V Ifg=5mA
Ifgl - - 10 μA Vfg=7V
-
-
Fig.4 to 7
-
Fig.8
Fig.9,10
-
Lock detection ON time Ton 0.35 0.50 0.65 s
Fig.11
Lock detection OFF time Toff
3.5 5.0 6.5
s
Fig.12
Truth table
H+
H
L
H
L
H-
PWM
OUT1
OUT2
L H(OPEN) H
L
H H(OPEN) L
H
LLLL
HL L L
FG
H(Output TrOFF)
L(Output TrON)
H(Output TrOFF)
L(Output TrON)
* FG=H at stand-by mode
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
2/12
TSZ02201-0H1H0B100140-1-2
5.Jul.2012 Rev.001


Part Number BD6966NUX
Description 5V Single-phase Full-wave Fan motor driver
Maker ROHM
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BD6966NUX Datasheet PDF






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