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PDF BD6712AF Data sheet ( Hoja de datos )
| Número de pieza | BD6712AF | |
| Descripción | 2-Phase Half-Wave Pre Driver | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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DC Brushless Motor Drivers for Cooling Fans
Two-phase Full-wave
DC Brushless Fan Motor Drivers
BD6701F, BA6406F, BA6506F, BA6901F, BD6712AF
No.12010EAT03
●Description
This is the summary of models for two-phase half-wave fan motor driver. They incorporate lock protection, automatic restart
circuit and FG/AL output. Some of them have variable speed control function, 48V power supply adaptation.
●Feature
1) Power Tr incorporated(BD6701F)
2) Pre-driver(BA6406F、BA6901F、BD6712AF、BA6506F)
3) Variable speed control(BA6901F)
4) Incorporates reverse connection protection diode(BD6701F)
5) Incorporates lock protection and automatic restart circuit
6) Rotation speed pulse signal (FG) output(BD6701F、BA6901F、BD6712AF、BA6506F)
7) Lock alarm signal (AL) output(BD6701F、BA6901F、BD6712AF、BA6406F)
●Applications
For desktop PC, server, general consumer equipment, communication equipment and industrial equipment.
●Lineup
Two-phase half wave
Power Tr incorporated
24V power supply BD6701F
Pre-driver
24V power supply BA6406F
24V power supply BA6506F
48V power supply BD6712AF
48V power supply BD6712AF
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
1/28
2012.03 - Rev.A
1 page  
BD6701F, BA6406F, BA6506F, BA6901F, BD6712AF
Technical Note
◎BA6901F(Unless otherwise specified Ta=25℃,Vcc=12V)
Parameter
Circuit current
Hall input hysteresis
Charge current of capacitor for
lock detection
Discharge current of capacitor
for lock detection
Charge-discharge current ratio of
capacitor for lock detection
Clamp voltage of capacitor for
lock detection
Comparison voltage of capacitor
for lock detection
Symbol
Limit
Min. Typ.
Icc 3.0 7.0
Vhys
±4 ±10
ILDC 2.0 5.0
ILDD 0.2 0.5
rCD 4 10
VLDCL 1.60 2.40
VLDCP 0.25 0.60
Output H voltage
VOH
- 1.5
FG output L voltage
AL output L voltage
CL-CS offset voltage
Response time for current limit
PWM input voltage H
PWM input voltage L
Charge-discharge pulse
comparison voltage
Charge-discharge pulse output
voltage H
Charge-discharge pulse output
voltage L
VFGL
VALL
VofsCS
TCS
VPWMH
VPWML
VCRCP
-
-
75.0
-
2.0
-
0.26
0.10
0.10
92.0
50
-
-
0.35
VTOH 0.7 1.0
VTOL 0.7 1.0
Max.
12.0
±20
8.0
0.8
16
3.20
0.95
2.0
0.50
0.50
99.5
150
-
0.8
0.44
1.3
1.3
Unit
Conditions
Characteristics
mA At output OFF
mV
μA VLD=1.5V
Fig.22
Fig.23
Fig.24
μA VLD=1.5V
Fig.24
- rCD=ILDC/ILDD
-
V Fig.25
V
V
V
V
mV
μsec
V
V
V
V
V
Io=-10mA
Voltage between output
and Vcc
IFG=5mA
IAL,IALB=5mA
CL=100mV
At output ON
At output OFF
ITO=-0.5mA
Voltage between output
and Vcc
ITO=0.5mA
Fig.25
Fig.26
Fig.27
Fig.28
Fig.29
-
Fig.30
Fig.30
-
-
-
◎BD6712AF (Unless otherwise specified Ta=25℃,Vcc=5V)
Parameter
Symbol
Min.
Limit
Typ. Max.
Unit
Conditions
Internal voltage
Vcz 5.5 6.0 6.5 V Icc=10mA
Circuit current1
Icc1 0.5 1.5 3.0 mA ＊
Circuit current2
Icc2 4 6.7 9.5 mA ＊＊
Hall input hysteresis voltage
Vhys 5 15 25 mV
Lock detection ON time
TON 0.25 0.5 1 sec
Lock detection OFF time
TOFF 2.5 5 10 sec
Output H voltage
VOH
Vcc-0. Vcc-0.
52
Vcc
V Io=-10mA
Output L voltage
VOL
- 0.2 0.5 V Io=10mA
FG output L voltage
VFGL
- 0.15 0.5
V IFG=5mA
FG output leak current
IFGL
-
0 10 μA VFG=48V
AL output L voltage
VALL
- 0.15 0.5 V IAL=5mA
AL output leak current
IALL - 0 10 μA VAL=48V
* H+:3V,H-:2V,Output,FG,AL terminal are open
** Hall-input is 100Hz square wave. Output is connected with 1kΩto ground. FG and AL are connected with 50kΩto Vcc.
Characteristics
-
-
Fig.31
-
Fig.32
Fig.33
Fig.34,35
Fig.36,37
Fig.38,39
-
Fig.38,39
-
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© 2012 ROHM Co., Ltd. All rights reserved.
5/28
2012.03 - Rev.A
5 Page 
BD6701F, BA6406F, BA6506F, BA6901F, BD6712AF
◎BD6712AF
10 BD6712AF
8
-35℃
6 25℃
95℃
4
2 Operating Voltage Range
0
0 6 12 18 24
Supply voltage, Vcc [V]
Fig.31 Circuit current
30
0.5 BD6712AF
95℃
0.4
-35℃
0.3 25℃
0.2
Operating Voltage Range
0.1
0
6 12 18 24 30
Supply voltage, Vcc [V]
Fig.32 Lock detection ON time
0 BD6712AF
-0.2 -35℃
25℃
-0.4
95℃
-0.6
-0.8
-1
0 10 20 30 40
Output current, Io [mA]
Fig.34 Output H voltage
(Temperature characteristics)
BD6712AF
1
0.8
0.6 3.5V
0.4 12V
28V
0.2
0
0 10 20 30
Output current, Io [mA]
Fig.37 Output L voltage
(Voltage characteristics)
40
0 BD6712AF
-0.2
28V
-0.4 12V
-0.6
-0.8 3.5V
-1
0 10 20 30 40
Output current, Io [mA]
Fig.35 Output H voltage
(Voltage characteristics)
BD6712AF
0.4
0.3
95℃
0.2 25℃
-35℃
0.1
0
0 2 4 6 8 10
FG/AL current, IFG/IAL [mA]
Fig.38 FG/AL output L voltage
(Temperature characteristics)
Technical Note
5 BD6712AF
95℃
4
-35℃
3
25℃
2
Operating Voltage Range
1
0 6 12 18 24 30
Supply voltage, Vcc [V]
Fig.33 Lock detection OFF time
1 BD6712AF
0.8
0.6 95℃
25℃
0.4
-35℃
0.2
0
0 10 20 30 40
Output current, Io [mA]
Fig.36 Output L voltage
(Temperature characteristics)
BD6712AF
0.4
0.3
0.2 3.5V
12V
0.1 28V
0
0 2 4 6 8 10
FG/AL current, IFG/IAL [mA]
Fig.39 FG/AL output L voltage
(Voltage characteristics)
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
11/28
2012.03 - Rev.A
11 Page | ||
| Páginas | Total 29 Páginas | |
| PDF Descargar | [ Datasheet BD6712AF.PDF ] | |
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