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PDF BD6726FU Data sheet ( Hoja de datos )
| Número de pieza | BD6726FU | |
| Descripción | Multifunction Single-phase Full-wave Fan Motor Driver | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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Datasheet
DC Brushless Fan Motor Drivers
Multifunction Single-phase Full-wave
Fan Motor Driver
BD6726FU
●General description
BD6726FU is a pre-driver that controls the motor drive
part composed of the power transistors. Moreover,
because the speed feedback function is installed, it is
the best for the motor drive with high rotational accuracy.
●Package
SSOP-C20
W (Typ.) x D (Typ.) x H (Max.)
5.00mm x 6.40mm x 1.35mm
●Features
Pre-driver for external power transistors
Speed feedback controllable by PWM input
PWM soft switching
Soft start
Quick start
Current limit
Lock protection and automatic restart
Rotation speed pulse signal (FG) output
●Application
Fan motors for general consumer equipment of Server, and desktop PC, etc.
SSOP-C20
●Absolute maximum ratings
Parameter
Symbol
Limit
Supply voltage
Power dissipation
Vcc 20
Pd 874.7 *1
Operating temperature range
Topr –40 to +100
Storage temperature range
Tstg –55 to +150
High side output voltage
Voh 36
Low side output voltage
Vol 15
Low side output current
Iol 10
Rotation speed pulse signal (FG) output voltage
Vfg
20
Rotation speed pulse signal (FG) output current
Ifg
10
Reference voltage (REF) output current Iref 12
Hall bias (HB) output current
Ihb 12
Input voltage (H+, H–, CS, PWMIN)
Vin 7
Input source current (ICT, SHIFT)
Iin 100
Junction temperature
Tj 150
*1 Reduce by 7.0mW/°C over Ta=25°C. (On 70.0mm×70.0mm×1.6mm glass epoxy board)
Unit
V
mW
°C
°C
V
V
mA
V
mA
mA
mA
V
µA
°C
●Recommended operating conditions
Parameter
Symbol
Limit
Unit
Operating supply voltage range
Vcc
5.0 to 17.0
V
Operating input voltage range 1 (H+, H–)
(more than Vcc=9V)
Operating input voltage range 1 (H+, H–)
(less than Vcc=9V)
0 to 7
V
Vin1
0 to Vcc–2
V
Operating input voltage range 2 (PWMIN)
(more than Vcc=7V)
Operating input voltage range 2 (PWMIN)
(less than Vcc=7V)
0 to 6.5
V
Vin2
0 to Vref
V
Operating input voltage range 3 (MIN)
Vin3
0 to Vref
V
Operating input voltage range 4 (FIL)
Vin4
0 to Vfilh
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
1/16
TSZ02201-0H1H0B100210-1-2
28.JUL.2012 Rev.002
1 page  
BD6726FU
●Typical performance curves(Reference data)
Datasheet
12
10 –40°C
25°C
8 100°C
6
4
2
0
0 2 4 6 8 10
Output source current: Io[mA]
Fig.7 Low side output high voltage (Vcc=12V)
12
10 17V
12V
8
6
4
2
5V
0
0 2 4 6 8 10
Output source current: Io[mA]
Fig.8 Low side output high voltage (Ta=25°C)
1.6 1.6
1.2 1.2
0.8
100°C
25°C
0.4
–40°C
0.0
0
2468
Output sink current: Io[mA]
10
Fig.9 Low side output low voltage (Vcc=12V)
0.8 5V
12V
0.4 17V
0.0
0
2468
Output sink current: Io[mA]
10
Fig.10 Low side output low voltage (Ta=25°C)
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/16
TSZ02201-0H1H0B100210-1-2
28.JUL.2012 Rev.002
5 Page 
BD6726FU
●Typical performance curves(Reference data)
10.4
10.3
10.2
100°C
–40°C
10.1 25°C
10.0
9.9
Operating range
9.8
0
5 10 15
Supply voltage: Vcc[V]
20
Fig.31 VCONT charge-discharge current ratio
3.0
2.5
2.0
1.5
1.0
0
Datasheet
–40°C
100°C
25°C
Operating range
5 10 15
Supply voltage: Vcc[V]
Fig.32 Soft start time
20
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
11/16
TSZ02201-0H1H0B100210-1-2
28.JUL.2012 Rev.002
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet BD6726FU.PDF ] | |
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