OB2269C
Current Mode PWM Controller
Frequency Shuffling
T
D
_OC
V
TH
_OC_0
V
TH
_OC_1
Impedance
Over Current
Detection and
Control Delay
Current Limiting
Threshold at No
Compensation
Current Limiting
Threshold at
Compensation
Normal Oscillation
Frequency
Frequency
Temperature
Stability
Frequency Voltage
Stability
Operating RI Range
RI open voltage
Burst Mode Base
Frequency
Maxmum Duty
Cycle
Minimum Duty
Cycle
CL=1nf at GATE,
I(VIN) = 0uA
I(VIN) = 150uA
0.85
120
0.90
0.81
0.95
nSec
V
V
60
-20
o
C to 100
o
C
VDD = 12-25V
12
65
2
2
70
∆f_Temp
∆f_VDD
RI_range
V_RI_open
F_BM
DC_max
DC_min
恒
60
85
0
0.3
1.115
3
(志
Ly
co
n
24
2.0
22
80
-
75
-
11
18
120
50
70
1.015
1.065
1.165
100
3.5
-3
32
Gate Drive Output
VOL
Output Low Level
VOH
Output High Level
VG_Clamp
Output Clamp
Voltage Level
T_r
Output Rising Time
T_f
Output Falling Time
Over Temperature Protection
I_RT
Output Current of
RT pin
V
TH
_OTP
OTP Threshold
Voltage
V
TH
_OTP_off
OTP Recovery
Threshold Voltage
T
D
_OTP
OTP De-bounce
Time
V_RT_Open
RT Pin Open
Voltage
Frequency Shuffling
Frequency
∆f_OSC
Modulation range
/Base frequency
Freq_Shuffling
Shuffling Frequency
nt
ia
l
Io = -20 mA
Io = +20 mA
VDD=20V
CL = 1nf
CL = 1nf
to
nf
id
e
Co
t
Br
ig
h
On
-
RI = 24Kohm
©On-Bright Electronics
-6-
通
Oscillator
F
OSC
Confidential
OB_DOC_DS_69CC1
电
KHZ
%
%
Kohm
V
KHZ
%
%
V
V
V
nSec
nSec
uA
V
V
uSec
V
%
HZ
子
)
ETC [ ETC ]
