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CXA3537EN/TN Datasheet

  • CXA3537EN/TN

  • Fan Motor Driver

  • 14頁(yè)

  • ETC

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CXA3537EN/TN
Fan Motor Driver
Description
The CXA3537EN/TN is a single-phase full wave
drive type motor driver IC designed for the fan
motors of laptop computers.
Power saving drive is achieved with a newly
developed Drive Duty Control (DDC) system.
This DDC system also makes it possible to easily
change the motor rotational speed without changing
the motor components.
Features
鈥?/div>
Supports single-phase full wave drive type fan
motors
鈥?/div>
High efficiency driving with the DDC system
鈥?/div>
Four kinds of drive duty can be selected by
changing the IC taps
鈥?/div>
Low output stage saturation voltage
鈥?/div>
Current slope control when cutting off the drive
current
鈥?/div>
Wide operating voltage range
鈥?/div>
FG output
鈥?/div>
Thermal protection circuit
鈥?/div>
Small package
Applications
Laptop PC fan motors
Structure
Bipolar silicon monolithic IC
Absolute Maximum Ratings
(Ta = 25擄C)
鈥?/div>
Supply voltage
Vcc
14
14
鈥?/div>
Motor drive voltage
鈭?/div>
1
Vs
鈥?/div>
Output current
I
O
300
4
260
鈥?/div>
FG output current
I
O
(FG)
鈥?/div>
Allowable power dissipation
P
D
鈥?/div>
Operating temperature
Topr
鈥?0 to +85
擄C
鈥?/div>
Storage temperature Tstg
鈥?5 to +150
擄C
鈭?/div>
1
CXA3537TN only. The VS pin voltage should not
exceed the V
CC
pin voltage.
Recommended Operating Conditions
(Ta = 25擄C)
鈥?/div>
Supply voltage
Vcc
3.0 to 13.2
V
(5.0V Typ.)
鈥?/div>
Motor drive voltage
鈭?/div>
1
Vs
0 to Vcc
V
鈥?/div>
Hole voltage in-phase input range
V
IH
0.5 to Vcc 鈥?1.3
V
鈥?/div>
Hole input minimum signal voltage
10 to
mVp-p
鈥?/div>
CEXT capacitor capacitance
Cext
0.01 to 0.022
碌F
鈥?/div>
CHLD capacitor capacitance
Chld
0.01 to 0.047
碌F
鈥?/div>
REXT resistance value
Rext
8 to 100
k鈩?/div>
鈭?/div>
1
CXA3537TN only.
12 pin VSON (Plastic)
16 pin TSSOP (Plastic)
V
V
mA
mA
mW
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
鈥?鈥?/div>
E00207D32

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