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PDF APX9281 Data sheet ( Hoja de datos )
| Número de pieza | APX9281 | |
| Descripción | Single-Phase Full-Wave Motor Pre-Driver | |
| Fabricantes | ANPEC | |
| Logotipo |  |
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APX9281
Single-Phase Full-Wave Motor Pre-Driver for Fan Motor
Features
• Single Phase Fan Pre-Driver
• Low Supply Current
• Soft-Start Function
• Built-in Variable Speed Control Function
• Minimum Speed Setting
• Built-in Current-Limit
• Built-in Lock Protection and Auto Restart Function
• FG (Rotation Speed Dectection) Output
• Built-in Thermal Protection Circuit
• Lead Free and Green Devices Available
(RoHS Compliant)
General Description
The APX9281 is a single phase, DC brushless motor
pre-driver with features of PWM variable speed control,
soft-start, and current-limit, which is suitable for fans,
blowers, and pump motors. Adequate S-S pin capacitor
could reduce the peak current at power on and Lock
mode. PWM control system works depending on the com-
parison among the voltage of SET, MIN, and OSC. The
device is equipped with built-in lock protection; when fan
is locked, the device will enter the lockup protection mode.
It is also with rotation detection output and thermal shut-
down function. In normal operation, the supply current is
less than 10mA. The APX9281 is available in the SSOP-16
package.
Simplified Application Curcuit
VCC
POWER MOS
Hall
Element
APX9281
M
Applications
• Mainframe and Personal Computer Fans and
Blowers
• Instrumentation Fans
• Variable Speed Control Fans
Ordering and Marking Information
APX9281
Assembly Material
Handling Code
Temperature Range
Package Code
Package Code
N : SSOP-16
Operating Ambient Temperature Range
I : -40 to 90 °C
Handling Code
TR : Tape & Reel
Assembly Material
L : Lead Free Device G : Halogen and Lead Free Device
APX9281 N :
APX9281
XXXXX
XXXXX - Date Code
Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which
are fully compliant with RoHS. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD-020C for
MSL classification at lead-free peak reflow temperature. ANPEC defines “Green” to mean lead-free (RoHS compliant) and halogen
free (Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by
weight).
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Copyright © ANPEC Electronics Corp.
Rev. A.3 - May., 2008
1
www.anpec.com.tw
1 page  
APX9281
Typical Operating Characteristics (Cont.)
CT High/Low Voltage vs.
VCC Supply Voltage
3.5
3
2.5 VCTH
2
1.5
1
0.5 VCTL
0
3 4 5 6 7 8 9 10 11 12 13 14 15 16
VCC Supply Voltage(V)
FG Pin Low Voltage vs. Sink Current
0.4
0.35
0.3
VCC=12V
0.25
0.2
0.15
0.1
0.05
0
0 2 4 6 8 10 12 14 16 18 20
Sink Current(mA)
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0
OUT_N Saturation Voltage vs.
OUT_N Output Current
VCC=12V
OUT_N
Upper Side
OUT_N
Lower side
5 10 15 20
OUT_N Output Current(mA)
25
Copyright © ANPEC Electronics Corp.
Rev. A.3 - May., 2008
5
CT Charge/Discharge Current vs.
VCC Supply Voltage
2
1.8
1.6 ICT1
1.4
1.2
1
0.8
0.6
0.4 ICT2
0.2
0
3 4 5 6 7 8 9 10 11 12 13 14 15 16
VCC Supply Voltage(V)
900
800
700
600
500
400
300
200
100
0
0
Maximum Power Dissipation vs.
Ambient Temperature
25 50 75
Ambient Temperature(°C)
100
OUT_P Saturation Voltage vs.
OUT_P Output Current
0.7
VCC=12V
0.6
0.5
0.4
0.3
0.2
0.1
0
0 5 10 15 20 25
OUT_P Output Current(mA)
www.anpec.com.tw
5 Page 
APX9281
Typical Application Circuit
12V
*2Ω 1kΩ
4.7µF/25V
OUT1P
OUT1
OUT1N
100Ω
IL
1kΩ
OUT2
OUT2P
OUT2N
100Ω
1µF~4.7µF
*2Ω
4.7µF/25V
0.47~10µF
/16V
RH
H
5VREG
IN-
IN+
S-S
MIN
VCC
SET
RF
RFG=1kΩ ~ 10kΩ
FG
SENSE
OUT1P
OUT1N
OUT2P
OUT2N
SGND
OSC
CT
COSC=220pF
CT= 0.47 ~ 1µF
*2Ω resistor and 4.7µF capacitor circuits are to decline peaking voltage in hot plug condition.
Copyright © ANPEC Electronics Corp.
Rev. A.3 - May., 2008
11
www.anpec.com.tw
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet APX9281.PDF ] | |
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