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BD6971FV Datasheet(PDF) 1 Page - Rohm

Part # BD6971FV
Description  Multifunction Single-phase Full-wave
Download  16 Pages
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Manufacturer  ROHM [Rohm]
Direct Link  http://www.rohm.com
Logo ROHM - Rohm

BD6971FV 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
TSZ02201-0H1H0B100150-1-2
© 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
BD6971FV
●General description
BD6971FV is a 1chip driver that composes H-bridge of
power DMOS FET.
It is possible to correspond to a small motor by starting
from 3.5V and installing in the SSOP small package.
●Features
SSOP small package
Driver including power DMOS 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
●Package
W (Typ.) x D (Typ.) x H (Max.)
SSOP-B14
5.00mm x 6.40mm x 1.35mm
●Application
Fan motors for general consumer equipment of desktop PC, and Projector, etc.
●Absolute maximum ratings
Parameter
Symbol
Limit
Unit
Supply voltage
Vcc
20
V
Power dissipation
Pd
874.7
*1
mW
Operating temperature range
Topr
–40 to +100
°C
Storage temperature range
Tstg
–55 to +150
°C
Output voltage
Vo
20
V
Output current
Io
1.0
*2
A
Rotation speed pulse signal (FG) output voltage
Vfg
20
V
Rotation speed pulse signal (FG) output current
Ifg
10
mA
Reference voltage (REF) output current
Iref
5
mA
Hall bias (HB) output current 1
Ihb1
5
mA
Hall bias (HB) output current 2
Ihb2
10
*3
mA
Input voltage (H+, H–, TH, MIN, CS)
Vin
7
V
Junction temperature
Tj
150
°C
*1
Reduce by 7.0mW/°C over Ta=25°C. (On 70.0mm×70.0mm×1.6mm glass epoxy board)
*2
This value is not to exceed Pd.
*3
The condition of Ta=25°C and Vcc=12V
●Recommended operating conditions
Parameter
Symbol
Limit
Unit
Operating supply voltage range
Vcc
3.5 to 17.0
V
Operating input voltage range 1 (H+, H–)
(more than Vcc=9V)
0 to 7
V
Operating input voltage range 1 (H+, H–)
(less than Vcc=9V)
Vin1
0 to Vcc–2
V
Operating input voltage range 2 (TH, MIN)
Vin2
0 to Vref
V
SSOP-B14


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