APX9270
Direct PWM Variable Speed Fan Motor Driver
Features
•
•
•
•
•
•
•
Single Phase Full Wave Fan Driver
Low Quiescent Current (6mA Typical)
Built-in Variable Speed Function
Current Limit Circuit (includes both internal and
external Current Limit)
Built-in Lock Protection and Auto Restart Function
FG (rotation speed detection) Output
Soft Switching Circuit (before phase change,
enabling low-consumption, low loss and low
noise drive.)
Over Voltage Protection (16.5V Typical)
Built-in Kickback Absorption Circuit
Built-in Thermal Protection Circuit
Lead Free and Green Devices Available (RoHS
Compliant)
General Description
The APX9270 is a single phase, DC brushless motor
driver with PWM variable speed control and current limit
features suitable for the fan of personal computer’ power
s
supply and CPU cooler. The PWM control system includes
thermistor input signal and direct PWM input signal, en-
abling highly silent and low vibration speed control. The
device is equipped with a built-in lock protection, which
protects the fan when it is locked. It also has rotation
speed detection output and thermal protection function.
The APX9270 is available in SSOP-20 and TSSOP-20P
packages (see Pin Configurations).
•
•
•
•
Applications
•
•
CPU Coolers
Variable Speed Control Fans
Ordering and Marking Information
APX9270
Assembly Material
Handling Code
Temperature Range
Package Code
APX9270
XXXXX
Package Code
N : SSOP-20
R: TSSOP-20P
Operating Ambient Temperature Range
I : -40 to 90
o
C
Handling Code
TR : Tape & Reel
Assembly Material
L : Lead Free Device
G : Halogen and Lead Free Device
XXXXX - Date Code
APX9270 N/R :
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).
Pin Configurations
PGND 1
OUT2 2
VM 3
VCC 4
OSCH 5
OSCL 6
SET 7
MIN 8
PWM 9
OSC10
SSOP-20
20 PGND
19 PGND
18 OUT1
17 SGND
16 6VREG
15 CT
14 IN -
13 HB
12 IN +
11 FG
PGND 1
OUT2 2
VM 3
VCC 4
OSCH 5
OSCL 6
SET 7
MIN 8
PWM 9
OSC10
TSSOP-20P
20 PGND
19 PGND
18 OUT1
17 SGND
16 6VREG
15 CT
14 IN -
13 HB
12 IN +
11 FG
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 - Jun., 2008
1
www.anpec.com.tw
APX9270
Absolute Maximum Ratings
Symbol
V
CC
V
M
I
OUT
V
OUT1
/V
OUT2
V
PGND
I
HB
V
SET
V
MIN
V
PWM
V
FG
I
FG
V
OSC
V
CT
P
D
T
J
T
STG
T
SDR
Parameter
VCC Pin Supply Voltage (VCC to SGND)
VM Pin Supply Voltage (VM to SGND)
OUT1/OUT2 Pin Maximum Output Current
OUT1/OUT2 Pin Output Voltage (OUT1, OUT2 to SGND)
PGND to SGND Voltage
HB Pin Output Current
SET Pin Input Voltage (SET to SGND)
MIN Pin Input Voltage (MIN to SGND)
PWM Pin Input Voltage (PWM to SGND)
FG Pin Output Voltage (FG to SGND)
FG Pin Output Current
OSC Pin Input Voltage (OSC to SGND)
CT Pin Input Voltage (CT to SGND)
Power Dissipation
SSOP-20
TSSOP-20P
Maximum Junction Temperature
Storage Temperature Range
Maximum Lead Soldering Temperature, 10 Seconds
1.2
1.5
150
-55 to 150
260
°C
°C
°C
W
Ratings
-0.3 to 18
-0.3 to V
CC
1.2
V
PGND
-0.3 to V
M
-0.3 to 0.3
0 to 15
-0.3 to 7
-0.3 to 7
-0.3 to V
CC
-0.3 to V
CC
0 to 10
-0.3 to 7
-0.3 to 7
Unit
V
V
A
V
V
mA
V
V
V
V
mA
V
V
Note 1: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device.
Thermal Characteristics
Symbol
R
TH,JA
Parameter
Thermal Resistance-Junction to Ambient
SSOP-20
TSSOP-20P
Note 2: Mounted on a board (60x38x1.6t mm, Glass epoxy).
Value
104
83
Unit
°
C/W
Recommended Operating Conditions
Symbol
V
CC
V
M
V
SET
V
MIN
V
PWM
V
OSCH
/V
OSCL
V
ICM
T
A
VCC Pin Supply Voltage
VM Pin Supply Voltage
SET Pin Input Voltage Range
MIN Pin Input Voltage Range
PWM Pin Input Voltage Range
OSC High/Low Level Input Voltage Range
Hall Input Common Phase Input Voltage Range
Ambient Temperature
Parameter
Rating
4.5 to 15
3.5 to 15
0 to 6
0 to 6
0 to V
CC
0 to 6
0.2 to 3
-40 to 90
Unit
V
V
V
V
V
V
V
°C
Copyright
©
ANPEC Electronics Corp.
Rev. A.3 - Jun., 2008
2
www.anpec.com.tw
APX9270
Electrical Characteristics
Symbol
SUPPLY CURRENT
V
6VREG
V
HB
I
CC1
I
CC2
OSCILLATOR
I
OSC1
I
OSC2
OSC Charge Current
OSC Discharge Current
7.5
7.5
10
10
12.5
12.5
µA
µA
V
V
µA
µA
-
6VREG Pin Output Voltage
HB Pin Output Voltage
Operating Current
I
6VREG
= 5mA
I
HB
= 5mA
Rotation Mode
Lock Protection Mode
5.85
1.2
-
-
6
1.3
6
6
6.15
1.4
8
8
V
V
mA
mA
Parameter
(V
CC
= 12V, T
A
= 25°C, R
L
= 0Ω, unless otherwise specified)
APX9270
Min.
Typ.
Max.
Test Conditions
Unit
LOCK PROTECTION
V
CTH
V
CTL
I
CT1
I
CT2
R
CT
V
OL
V
OH
V
FG
I
FGL
CT Pin High Level Voltage
CT Pin Low Level Voltage
CT Charge Current
CT Discharge Current
CT Charge/Discharge Current Ratio
C
CT
= 1µF
C
CT
= 1µF
V
CT
= 0V
V
CT
= 3.6V
R
CT
= I
CT1
/I
CT2
I
OUT
= 400mA
I
OUT
= 400mA
I
FG
= 5mA
V
FG
= 7V
Zero to peak including offset
and hysteresis
3.4
1.4
1.65
0.165
8
3.6
1.6
2.2
0.22
10
3.8
1.8
2.75
0.275
12
OUTPUT DRIVERS
Output Lower Side Saturation
Output Upper Side Saturation
FG Pin Low Voltage
FG Pin Leak Current
-
-
-
-
0.2
0.4
0.2
0.1
0.3
0.6
0.4
1
V
V
V
µA
HALL SENSITIVITY
V
HN
Hall Input Sensitivity
-
25
35
mV
CURRENT-LIMIT
I
LIM
I
RL
Internal Current-Limit
External Current-Limit
R
L
= 0.5Ω
-
-
1200
960
-
-
mA
mA
THERMAL PROTECTION
Thermal Protection Temperature
Thermal Protection Hysteresis
Over-Voltage Protection
V
OV
Over-Voltage Threshold
-
16.5
-
V
-
-
160
20
-
-
°C
Copyright
©
ANPEC Electronics Corp.
Rev. A.3 - Jun., 2008
3
www.anpec.com.tw
APX9270
Typical Operating Characteristics
VCC Supply Current vs. VCC Supply Voltage
7
Rotation Mode
VCC Supply Current vs. VCC Supply Voltage
7
Lock Mode
6
VCC Supply Current (mA)
5
4
3
2
1
0
0
5
10
15
VCC Supply Voltage (V)
VCC Supply Current (mA)
6
5
4
3
2
1
0
0
5
10
15
VCC Supply Voltage (V)
11
OSC Charge/Discharge Current (µA)
OSC Charge/Discharge Current vs.
VCC Supply Voltage
CT Charge/Discharge Current (µA)
3
2.5
2
1.5
1
0.5
0
0
CT Charge/Discharge Current vs.
VCC Supply Voltage
Charge Current
10.5
Charge Current
10
Discharge Current
9.5
Discharge Current
9
0
5
10
15
VCC Supply Voltage (V)
5
10
15
VCC Supply Voltage (V)
Output Saturation Voltage vs.
Output Current
2000
1800
Output Saturation Voltage (mV)
1400
1200
1000
800
600
400
200
0
0
200
400
Lower Side
Saturation Voltage
FG Pin Low Voltage vs. Sink Current
300
250
FG Pin Low Voltage (mV)
1600
Upper Side
Saturation Voltage
200
150
100
50
0
0
1
2
3
4
5
6
7
8
9
10
FG Pin Sink Current (mA)
600
800
1000
Output Current (mA)
Copyright
©
ANPEC Electronics Corp.
Rev. A.3 - Jun., 2008
4
www.anpec.com.tw
APX9270
Typical Operating Characteristics
Maximum Power Dissipation vs.
Ambient Temperature
TSSOP-20P
1.6
Maximum Power Dissipation (W)
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0
25
SSOP-20
Ambient Temperature (
°
C)
50
75
100
125
150
Operating Waveforms
Rotation Waveform 1
V
OUT1
Rotation Waveform 2
V
CC
V
OUT1
1, 2
V
OUT2
1
2, 3
V
IN-
V
OUT2
3, 4
V
IN+
4
I
IN
Ch1 : V
OUT1
, 5V/Div, DC
Ch2 : V
OUT2
, 5V/Div, DC
Ch3 : V
IN+
, 100mV/Div, AC
Ch4 : V
IN-
, 100mV/Div, AC
Time : 2ms/Div
Ch1 : V
CC
, 5V/Div, DC
Ch2 : V
OUT1
, 5V/Div, DC
Ch3 : V
OUT2
, 5V/Div, DC
Ch4 : I
IN
, 500mA/Div, DC
Time : 2ms/Div
Copyright
©
ANPEC Electronics Corp.
Rev. A.3 - Jun., 2008
5
www.anpec.com.tw
Analog electronics
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