Motor Drivers. BD6718FV Datasheet

BD6718FV Drivers. Datasheet pdf. Equivalent

Part BD6718FV
Description DC Brushless Fan Motor Drivers
Feature TECHNICAL NOTE DC Brushless Motor Drivers for Cooling Fans Speed Controllable Single-phase Full-wave.
Manufacture Rohm
Datasheet
Download BD6718FV Datasheet

TECHNICAL NOTE DC Brushless Motor Drivers for Cooling Fans S BD6718FV Datasheet
Recommendation Recommendation Datasheet BD6718FV Datasheet




BD6718FV
TECHNICAL NOTE
DC Brushless Motor Drivers for Cooling Fans
Speed Controllable
Single-phase Full-wave
DC Brushless Fan Motor Drivers
BD6709FS, BD6718FV, BD6721FS, BD6722FS
Description
This is the summary of models that suit for 12V speed controllable fan for desktop PC and general consumer equipment.
They employ Bi-CDMOS process, and realize low ON resistance, low power consumption. They incorporate lock protection
and automatic restart circuit, current limiting circuit.
Features
1) Power Tr incorporated (BD6709FSBD6721FS)
2) Pre-driver compatible for external Tr (BD6718FV)
3) Low side power Tr incorporated half pre-driver (BD6722FS)
4) Current limiting circuit
5) PWM soft switching driver (BD6721FSBD6722FS)
6) Soft start circuit (BD6722FS)
7) Lock protection and automatic restart circuit
8) Rotating speed pulse signal (FG) output
9) Lock alarm signal (AL) output (BD6718FVBD6721FSBD6722FS)
Application
For 12V fan for desktop PC, server and general consumer equipment
Lineup
12V speed controllable
single-phase full-wave
Soft switching not available
Soft switching available
Power Tr incorporated BD6709FS
Pre-driver
BD6718FV
Power Tr incorporated BD6721FS
Half pre-driver
BD6722FS
Jan. 2007



BD6718FV
Absolute Maximum Ratings
BD6709FS
Parameter
Symbol
Supply voltage
Vcc
Power dissipation
Pd
Operation temperature
Topr
Storage temperature
Tstg
Output current
Iomax
FG signal output current
IFG
FG signal output voltage
VFG
Junction temperature
Tjmax
Reduce by 6.5mW/over 25.
(On 70.0mm×70.0mm×1.6mm glass epoxy board)
** This value is not to exceed Pd.
BD6718FV
Parameter
Symbol
Supply voltage
Vcc
Power dissipation
Pd
Operation temperature
Topr
Storage temperature
Tstg
High side output voltage
VOH
Low side output voltage
VOL
Low side output current
Iomax
FG signal output current
IFG
FG signal output voltage
VFG
AL signal output current
IAL
AL signal output voltage
VAL
VREF current ability
IVREF
HB current ability
IHB
Junction temperature
Tjmax
Reduce by 6.5mW/over 25.
(On 70.0mm×70.0mm×1.6mm glass epoxy board)
BD6721FS
Parameter
Symbol
Supply voltage
Vcc
Power dissipation
Pd
Operation temperature
Topr
Storage temperature
Tstg
Output current
Iomax
FG signal output current
IFG
FG signal output voltage
VFG
AL signal output current
IAL
AL signal output voltage
VAL
VREF current ability
IVREF
Junction temperature
Tjmax
Reduce by 6.5mW/over 25.
(On 70.0mm×70.0mm×1.6mm glass epoxy board)
** This value is not to exceed Pd.
Limit
17
812.5
-40+95
-55+150
1.2**
10
15
150
Limit
15
812.5
-40+95
-55+150
36
15
20
8
15
8
15
4
8
150
Limit
20
812.5
-40+100
-55+150
1.0**
10
20
10
20
8
150
2/40
Unit
V
mW
A
mA
V
Unit
V
mW
V
V
mA
mA
V
mA
V
mA
mA
Unit
V
mW
A
mA
V
mA
V
mA





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