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BD6722FS Datasheet(PDF) 1 Page - Rohm

Part No. BD6722FS
Description  Multifunction Single-phase Full-wave Fan Motor Driver
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Maker  ROHM [Rohm]
Homepage  http://www.rohm.com
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BD6722FS Datasheet(HTML) 1 Page - Rohm

 
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○Product structure:Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays
1/12
TSZ02201-0H1H0B100180-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
28.JUL.2012 Rev.002
www.rohm.com
TSZ22111・14・001
Datasheet
DC Brushless Fan Motor Drivers
Multifunction Single-phase Full-wave
Fan Motor Driver
BD6722FS
●General description
BD6722FS is a half pre-driver that controls the source
side motor drive part composed of the power transistors.
Moreover, it corresponds to 800mA motor, because the
driving current and the composition parts are optimized.
●Features
Half pre-driver including power NDMOS FET
Speed controllable by DC / direct PWM input
PWM soft switching
Quick start
Current limit
Lock protection and automatic restart
Rotation speed pulse signal (FG) output
Lock alarm signal (AL) output
●Package
W (Typ.) x D (Typ.) x H (Max.)
SSOP-A16
6.60mm x 6.20mm x 1.71mm
●Application
Fan motors for general consumer equipment of desktop PC, and Server, etc.
●Absolute maximum ratings
Parameter
Symbol
Limit
Unit
Supply voltage
Vcc
20
V
Power dissipation
Pd
812.5
*1
mW
Operating temperature range
Topr
–40 to +100
°C
Storage temperature range
Tstg
–55 to +150
°C
High side output voltage
Voh
34
V
Low side output voltage
Vol
34
V
Low side output current
Iol
1.5
*2
A
Rotation speed pulse signal (FG) output voltage
Vfg
20
V
Rotation speed pulse signal (FG) output current
Ifg
10
mA
Lock alarm signal (AL) output voltage
Val
20
V
Lock alarm signal (AL) output current
Ial
10
mA
Reference voltage (REF) output current
Iref
8
mA
Input voltage (TH)
Vin
15
V
Junction temperature
Tj
150
°C
*1
Reduce by 6.5mW/°C over Ta=25°C. (On 70.0mm×70.0mm×1.6mm glass epoxy board)
*2
This value is not to exceed Pd.
●Recommended operating conditions
Parameter
Symbol
Limit
Unit
Operating supply voltage range
Vcc
4.5 to 17.0
V
Operating input voltage range (H+, H–, MIN)
(more than Vcc=9V)
0 to 7
V
Operating input voltage range (H+, H–, MIN)
(less than Vcc=9V)
Vin
0 to Vcc–2
V
SSOP-A16


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