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Rohm Semiconductor Electronic Components Datasheet

BD6701F Datasheet

Two-phase Full-wave DC Brushless Fan Motor Drivers

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BD6701F pdf
Datasheet
DC Brushless Motor Drivers for Cooling Fans
Two-phase Full-wave
DC Brushless Fan Motor Drivers
BD6701F
General description
BD6701F is two-phase half-wave fan motor 1 chip driver
that composes 2 Nch power DMOS FET.
This driver incorporates lock protection, automatic restart
circuit and FG/AL output.
Package
SOP-8
W (Typ.) x D (Typ.) x H (Max.)
5.00mm x 6.20mm x 1.71mm
Features
„ Power Tr incorporated
„ Incorporates reverse connection protection diode
„ Incorporates lock protection and automatic restart
circuit
„ Rotation speed pulse signal (FG) output
„ Lock alarm signal (AL) output
SOP8
Application
„ For desktop PC, server, general consumer equipment, communication equipment and industrial equipment.
Absolute maximum ratings
Parameter
Symbol
Limit
Supply voltage
Power dissipation
Vcc 36
Pd 780 *1
Operating temperature range
Topr -40 +100
Storage temperature range
Output current
Tstg
Iomax
-55 +150
800 *2
AL signal output current
IAL 10
AL signal output voltage
VAL 36
FG signal output current
IFG 10
FG signal output voltage
VFG
36
Junction temperature
Tjmax
150
*1 Reduce by 6.24mW/°C over Ta=25°C. (On 70.0mm×70.0mm×1.6mm glass epoxy board)
*2 This value is not to exceed Pd.
Unit
V
mW
mA
mA
V
mA
V
Recommended operating conditions
Parameter
Operating supply voltage range
Hall input voltage range
Symbol
Vcc
VH
Limit
6.0 28.0
0 Vcc-3.0
Unit
V
V
Product structure Silicon monolithic integrated circuit
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 14 001
This product is not designed protection against radioactive rays
1/13
TSZ02201-0H1H0B100510-1-2
18.DEC.2012 Rev.002


Rohm Semiconductor Electronic Components Datasheet

BD6701F Datasheet

Two-phase Full-wave DC Brushless Fan Motor Drivers

No Preview Available !

BD6701F pdf
BD6701F
Datasheet
Pin configuration
OUT2
AL
FG
Vcc
1
2
3
4
(TOP VIEW)
8 GND
7 OUT1
6 H-
5 H+
Fig.1 Pin configuration
Pin description
P/No. T/Name
1 OUT2
2 AL
3 FG
4 Vcc
5 H+
6 H–
7 OUT1
8 GND
Function
Motor output terminal 2
Lock alarm signal output terminal
Speed pulse signal output terminal
Power supply terminal
Hall + input terminal
Hall – input terminal
Motor output terminal 1
Ground terminal (signal ground)
Block diagram
OUT2
1
AL
2
FG
3
Vcc
4
Lock
Detect
Auto
Restart
Pre Drive
OSC
Control
REG
TSD
HALL
AMP -
+
GND
8
OUT1
7
H-
6
H+
5
Fig.2 Block diagram
I/O truth table
Hall input
H+ H-
HL
LH
H; High, L; Low, Hi-Z; High impedance
FG output is open-drain type.
Motor state
AL
Rotating
L
Locking
Hi-Z
L; Low, Hi-Z; High impedance
AL output is open-drain type.
OUT1
H
(Output Tr OFF)
L
(Output Tr ON)
Driver output
OUT2
L
(Output Tr ON)
H
(Output Tr OFF)
FG
L
(Output Tr ON)
Hi-Z
(Output Tr OFF)
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 15 001
2/13
TSZ02201-0H1H0B100510-1-2
18.DEC.2012 Rev.002


Part Number BD6701F
Description Two-phase Full-wave DC Brushless Fan Motor Drivers
Maker Rohm
Total Page 17 Pages
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