Datasheet

建 準 電 機
SUNONWEALTH
Page 9 of 16
Unit
Hz
V
V
mA
%
3.PWM Duty Cycle VS Speed (at Ta = 25
℃
,Vcc =12VDC,fpwm=25KHz)
-
100
unstable fan speed.
D.C.
0
* The speed is default to be maximum if PWM input pin is unconnected.
* Min. start up duty cycle is 5%. Please don't apply 1 ~ 4% duty cycle to prevent
V
L
0 - 0.8
Isource - 0.5 -
1. Period :
2. Duty Cycle
（
D.C.
）
:
★
PWM INPUT WAVEFORM
★
Electrical Characteristics at Ta = 25
℃；
Vcc=12V
Parameter Min Typical Max
f pwm 100 25K 50K
V
H
2.3 5 5.5
50
11000±10
％
PWM Duty Cycle (%)
FAN Speed （ R.P.M. ） (REF.)
100
22000±10
％
. t2 (s ec) t 1
1
T
f P WM
+==
t 1 t2
T
V
V
H
V
L
. 1 0 0 ( % )
T
t1
1 0 0
t2t1
t1
∗=∗
+
System Fan
Vcc = rated volt.
PWM Input
Isource
Ground
+5V
10K
10K
10K
PWM INPUT SIGNAL
2018.02.27
D.C.C.