CXA3537TN SONY [Sony Corporation], CXA3537TN Datasheet - Page 2

• Manufacturer Part Number: CXA3537TN
• Description: Fan Motor Driver Adopting the Power-saving DDC Drive System
• Manufacturer: SONY [Sony Corporation]

Figure 1 Operating Waveforms of a Conventional
Figure 4 CXA3537EN Application Circuit
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
(a) Hole signal
(b) Drive current
(c) Drive torque
C1
R1
12
1
Single-phase Full-wave Drive
11
2
CXA3537EN
C2
10
3
R2
9
4
reduction in power consumption with
only a 6% drop in motor speed.
8
5
This system achieves a 34%
The drive current is
Open/short
Jumper selector
Speed of fan motor rotation [rpm]
always applied.
7
6
DDC system
Rotor rotation angle
(electrical angle) [deg]
C3
LOAD
Conventional single-phase
full-wave drive
V
CC
of four motor speeds to be selected
CXA3537: This device allows one
FG
GND
by switching the taps.
Figure 5 CXA3537EN Package Dimensions (Provisional)
12
1
Figure 2 Operating Waveforms of a DDC System Drive
(a) Hole signal
(b) Drive current
(c) Drive torque
3.5
0.5
7
6
Figure 3 Power-saving Effects of a DDC
when good efficiency can be obtained.
The drive current is only applied
0.8
System Drive and Variable-speed
Function (Experimentally verified
results)
+0.1
–0.05
Rotor rotation angle
(electrical angle) [deg]