OB2273
High Performance Current Mode PWM Controller
CHARACTERIZATION PLOTS
VDD = 18V, TA = 25℃ condition applies if not otherwise noted.
Istartup(uA) vs Temperature(℃)
Vth_otp(V) vs Temperature(℃)
5.0
4.5
1.02
1.01
科
4.0
3.5
1.00
0.99
乐
3.0
-40
0 40 80 120
Temperature(℃)
0.98
-40
o 0 40 80 120
t Temperature(℃)
UVLO(on)(V) vs Temperature(℃)
al 9.6
i 9.4
t 9.2
n 9
e 8.8
fid -40
0 40 80 120
Temperature(℃ )
n Vth_OC(V)vs duty(%)
Co 0.95
UVLO(off)(V) vs Temperature(℃)
15.4
15.2
15
14.8
14.6
14.4
-40
0 40 80 120
Temperature(℃ )
Fosc(KHz) vs Temperature(℃)
64.0
0.90
t 0.85
gh 0.80
i 0.75
Br0 14 28 42
56
70
Duty(%)
On
63.8
63.5
63.3
63.0
-40
0 40 80 120
Temperature(℃)
©On-Bright Electronics
Confidential
7
Preliminary Datasheet
OB_DOC_DS_227305