900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Rohm Semiconductor Electronic Components Datasheet

BD6346FV Datasheet

Three-phase Full-wave Fan Motor Driver

No Preview Available !

Datasheet
DC Brushless FAN Motor Drivers
Three-phase Full-wave
Fan Motor Driver
BD6346FV
General Description
BD6346FV is a three phase, sensorless motor 1chip driver
with integrated power DMOS MOSFETs. Its feature is
sensor-less drive which doesn’t require a hall device as a
location detection sensor. Furthermore, introducing a PWM
soft switched driving mechanism achieves silent
operations and low vibrations.
Features
„ Integrated Power DMOS FET driver
„ Sensorless PWM soft switched drive
„ Lock protection and automatic restart
„ DC voltage/direct PWM input ,speed control
„ Current limit
„ Soft-Start function
„ Quick-Start function
„ Rotating speed pulse signal(FG)output
„ UVLO
Package(s)
SSOP-B20
W (Typ.) x D (Typ.) x H (Max.)
6.50mm x 6.40mm x 1.45mm
SSOP-B20
Applications
„ Refrigerator, Sever, Desktop, cooling Fan for general
consumer equipment
Absolute maximum ratings
Parameter
Supply voltage
Power dissipation
Operating temperature
Storage temperature
Output voltage
Output Current
FG signal output voltage
FG signal output current
REF current ability
Symbol
VCC
Pd
Topr
Tstg
Vomax
Iomax
VFG
IFG
IREF
Limit
20
1200*1
-40 to +100
-55 to +150
20
1.2*2
20
10
8
Input voltage 1 (COM)
Vin1 20
Input voltage2 (CONT, MIN, SS, OSC, TOSC, SEL) Vin2
6.5
Junction temperature
Tjmax
150
*1 Reduce by 9.6mW/°C, over Ta=25°C (on 70.0mm×70.0mm×1.6mm glass epoxy board)
*2 This value is not exceed Pd and ASO
Recommended operating conditions
Parameter
supply voltage range
Input voltage (CONT)
Input voltage (MIN)
Input frequency (CONT, OSC=GND setting)
Symbol
Vcc
Vcont
Vmin
Fcont
Limit
5.5 to 17.0
0 to Vref
Voscl to Vref
20 to 50
Unit
V
mW
V
A
V
mA
mA
V
V
°C
Unit
V
V
V
kHz
Product structure Silicon monolithic integrated circuit
.www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111 14 001
This product is not designed for protection against radioactive rays
1/21
TSZ02201-0H1H0B100520-1-2
17.Jun.2013 Rev.001


Rohm Semiconductor Electronic Components Datasheet

BD6346FV Datasheet

Three-phase Full-wave Fan Motor Driver

No Preview Available !

BD6346FV
Pin Configuration(s)
GND 1
GND 2
GND 3
SS 4
REF 5
CONT 6
MIN 7
SEL 8
U9
RNF 10
(TOP VIEW)
20 GND
19 GND
18 GND
17 FG
16 OSC
15 TOSC
14 COM
13 Vcc
12 W
11 V
Fig. 1 Pin configuration
Block diagram
Datasheet
Pin description
P/No. T/Name
Function
1 GND GND terminal (signal GND)
2 GND GND terminal (signal GND)
3 GND GND terminal (signal GND)
4
SS
Soft-Start capacitor connecting
terminal
5 REF Reference voltage terminal
6 CONT Output duty control terminal
7
MIN
Minimum rotating speed setting
terminal
8 SEL Output slope current select terminal
9 U Motor output U terminal
10
RNF
Output current detecting terminal
(Motor GND)
11 V Motor output V terminal
12 W Motor output W terminal
13 Vcc Power Supply terminal
14 COM Motor central tap terminal
15
TOSC
Oscillating capacitor connecting
terminal for synchronous driving
16
OSC
Oscillating capacitor connecting
terminal for output PWM operation
17
FG
Rotating speed pulse signal output
terminal
18 GND GND terminal (signal GND)
19 GND GND terminal (signal GND)
20 GND GND terminal (signal GND)
GND pin is shorted all GND pin (1-3, 18-20) on board
GND 1
GND 2
GND 3
SS 4
TSD
LOCK
PROTECT
UVLO
QUICK
START
Vcl
SOFT START
& CURRENT
LIMIT
COMP
150° SOFT
SWITCH
SIGNAL
OUTPUT
20 GND
19 GND
18 GND
17 FG
REF 5
REF
CONT 6
MIN 7
SEL 8
REF
PWM
COMP
CONTROL
LOGIC
PRE DRIVER
OSC
16 OSC
TOSC
BEMF
DETECT
DET.
COMP
DETECT
LEVEL
15 TOSC
14 COM
13 Vcc
U9
Vcc
Vcc
Vcc
12 W
RNF 10
11 V
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111 15 001
Fig. 2 Block diagram
2/21
TSZ02201-0H1H0B100520-1-2
17.Jun.2013 Rev.001


Part Number BD6346FV
Description Three-phase Full-wave Fan Motor Driver
Maker ROHM
PDF Download

BD6346FV Datasheet PDF






Similar Datasheet

1 BD6346FV Three-phase Full-wave Fan Motor Driver
ROHM





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy