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OB2263 Datasheet(PDF) 5 Page - List of Unclassifed Manufacturers

Part # OB2263
Description  Current Mode PWM Controller
PDF  13 Pages
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Manufacturer  ETC2 [List of Unclassifed Manufacturers]
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OB2263 Datasheet(HTML) 5 Page - List of Unclassifed Manufacturers

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©On-Bright Electronics
- 5 -
OB_DOC_DS_63B5
OB2263
Current Mode PWM Controller
Frequency Shuffling
ELECTRICAL CHARACTERISTICS
(TA = 25OC if not otherwise noted)
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
Supply Voltage (VDD)
I_VDD_Startup
VDD Start up
Current
VDD =12.5V, RI=100K
Measure Leakage current
into VDD
3
20
uA
I_VDD_Ops
Operation Current
VDD=16V,
RI=100Kohm, VFB=3V
1.4
mA
UVLO(ON)
VDD Under Voltage
Lockout Enter
7.8
8.8
9.8
V
UVLO(OFF)
VDD Under Voltage
Lockout Exit
(Recovery)
13
14
15
V
VDD_Clamp
VDD Zener Clamp
Voltage
IVDD = 5 mA
34
V
Feedback Input Section(FB Pin)
AVCS
PWM Input Gain
Δ
VFB /ΔVcs
2.0
V/V
VFB_Open
VFB Open Loop
Voltage
4.8
V
IFB_Short
FB pin short circuit
current
Short FB pin to GND and
measure current
1.2
mA
VTH_0D
Zero Duty Cycle FB
Threshold Voltage
VDD = 16V,
RI=100Kohm
0.75
V
VTH_PL
Power Limiting FB
Threshold Voltage
3.7
V
TD_PL
Power limiting
Debounce Time
35
mSec
ZFB_IN
Input Impedance
6
Kohm
DC_MAX
Maximum Duty
Cycle
VDD=18V,
RI=100Kohm, FB=3V,
CS=0
75
%
Current Sense Input(Sense Pin)
T_blanking
Leading edge
blanking time
RI = 100 Kohm
300
ns
ZSENSE_IN
Input Impedance
40
Kohm
TD_OC
Over Current
Detection and
Control Delay
VDD = 16V,
CS>VTH_OC, FB=3.3V
75
nSec
VTH_OC
Over Current
Threshold Voltage at
zero Duty Cycle
FB=3.3V, RI=100 Kohm
0.70
0.75
0.80
V
Oscillator
FOSC
Normal Oscillation
Frequency
RI = 100 Kohm
60
65
70
KHZ
∆f_Temp
Frequency
Temperature Stability
VDD = 16V,
RI=100Kohm, TA -20
oC
to 100 oC
5
%
∆f_VDD
Frequency Voltage
Stability
VDD = 12-25V,
RI=100Kohm
5
%
RI_range
Operating RI Range
50
100
150
Kohm
V_RI_open
RI open load voltage
2
V
Confidential to Micro Bridge



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