Motor Driver. BD6326ANUX Datasheet

BD6326ANUX Driver. Datasheet pdf. Equivalent

Part BD6326ANUX
Description Three-Phase Full-Wave Fan Motor Driver
Feature Datasheet DC Brushless Fan Motor Drivers Three-Phase Full-Wave Fan Motor Driver BD6326ANUX Genera.
Manufacture ROHM
Datasheet
Download BD6326ANUX Datasheet



BD6326ANUX
Datasheet
DC Brushless Fan Motor Drivers
Three-Phase Full-Wave
Fan Motor Driver
BD6326ANUX
General description
BD6326ANUX is a three-phase sensorless fan motor
driver used to cool off notebook PCs. It is controlled by a
variable speed provided through the PWM input signal. Its
feature is sensorless drive which doesn’t require a hall
device as a location detection sensor and motor
downsizing can be achieved by limiting the number of
external components as much as possible. Furthermore,
introducing a direct PWM soft switched driving
mechanism achieves silent operations and low vibrations.
Package
VSON010X3030
W(Typ) x D(Typ) x H(Max)
3.00mm x 3.00mm x 0.60mm
Features
Speed controllable by PWM input signal
180° Sinusoidal drive
Power save function
Internal RNF resistance
Motor rotation direction select function(FR)
VSON010X3030
Application
Small fan motor notebook PCs etc.
Absolute maximum ratings
Parameter
Symbol
Limit
Unit
Supply voltage
VCC 7 V
Power dissipation (NOTE 1)
Pd 0.58 W
Operating temperature
Topr
–25 to +95
°C
Storage temperature
Tstg
–55 to +150
°C
Output voltage
Vomax
7V
Output current(NOTE 2)
Iomax
700 mA
FG signal output voltage
VFG 7 V
FG signal output current
IFG 6 mA
Junction temperature
Tjmax
150 °C
(NOTE 1) Reduce by 4.64mW/°C over Ta=25°C. (On 74.2mm×74.2mm×1.6mm glass epoxy board)
(NOTE 2) This value is not to exceed Pd.
Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over
the absolute maximum ratings.
Recommended operating condition
Parameter
Operating supply voltage range
Input voltage range(PWM, FR terminals)
Symbol
VCC
VIN
Limit
2.2 to 5.5
0 to VCC
Unit
V
V
Product structure : Silicon monolithic integrated circuit This product has no designed protection against radioactive rays
www.rohm.com
© 2018 ROHM Co., Ltd. All rights reserved.
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BD6326ANUX
BD6326ANUX
Pin Configuration
(TOP VIEW)
FG
COM
VCC
U
FR
PWM
TOSC
GND
V
W
Figure 1. Pin configuration
Pin Description
P/No.
1
2
3
4
5
6
7
8
9
10
T/name
FG
COM
VCC
U
FR
W
V
GND
TOSC
PWM
Function
FG output terminal
Coil midpoint terminal
Power supply terminal
U phase output terminal
Motor rotation direction select terminal
W phase output terminal
V phase output terminal
GND terminal
Start-up oscillation capacitor connection
terminal
PWM signal input terminal
Block Diagram
TSD
UVLO
FG
1
COM
2
SIGNAL
OUTPUT
BEMF
COMP.
VCC
3
U
4
OSC
VREG
CONTROL
LOGIC
DUTY
CONTROL
PWM
10
TOSC
CS
COMP.
TOSC
9
VCS
PRE-
DRIVER
GND
8
V
7
FR
5
Figure 2. Block diagram
W
6
www.rohm.com
© 2018 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 15 • 001
2/22
TSZ02201-0H2H0C102310-1-2
31. Aug. 2018 Rev.001





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