Data Sheet

建 準 電 機
SUNONWEALTH
Page 9 of 16
Unit
KHz
V
V
mA
%
20
50
25
5300 ± 1060
100
2. Duty Cycle（D.C.） :
Typical
Min
Max
0
Parameter
1. Period :
10000 ± 1500
PWM Duty Cycle (%)
FAN Speed（ R.P.M.）
3.PWM Duty Cycle VS Speed ( Ta = 25℃,Vcc =Rated Volt.,fpwm= 25 KHz)
--
Isource
--
0.6
0
★
Electrical Characteristics ：( Ta = 25℃，Vcc =Rated Volt.)
30
f pwm
0.8
--
V
L
0
--
5.5
V
H
2.4
★PWM INPUT WAVEFORM
D.C.
20
* The speed is default to be maximum if PWM input pin is unconnected.
--
100
unstable fan speed.
* Min. start up duty cycle is 20%. Please don't apply 1 ~ 19% duty cycle to prevent the
. t2 (sec) t1
1
T
f
PWM
+==
t 1 t2
T
V
V
H
V
L
. 100(% )
T
t1
100
t2t1
t1
∗=∗
+
Ground
Isource
PWM Input
Vcc = rated volt.
FanSystem
IC
PWM INPUT SIGNAL
2017.12.22
D.C.C.