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OB2358AP Datasheet(PDF) 4 Page - List of Unclassifed Manufacturers

Part # OB2358AP
Description  Current Mode PWM Power Switch Freq Shuffling
PDF  9 Pages
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Manufacturer  ETC2 [List of Unclassifed Manufacturers]
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OB2358AP Datasheet(HTML) 4 Page - List of Unclassifed Manufacturers

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©On-Bright Electronics
Confidential
- 4 -
OB_DOC_DS_5800
OB2358
Current Mode PWM Power Switch
Freq Shuffling
ELECTRICAL CHARACTERISTICS
(TA = 25℃, VDD=16V, if not otherwise noted)
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
Supply Voltage (VDD)
Istartup
VDD Start up
Current
VDD =14.5V,Measure
Leakage current into VDD
5
20
uA
I_VDD_Operation Operation Current
VFB=3V
1.6
mA
UVLO(ON)
VDD Under
Voltage Lockout
Enter
8.7
9.7
10.7
V
UVLO(OFF)
VDD Under
Voltage Lockout
Exit (Recovery)
14.6
15.8
17.0
V
OVP(ON)
Over voltage
protection
voltage
CS=0V,FB=3V
Ramp up VDD until gate
clock is off
27.0
28.5
30.0
V
VDD_Clamp
VDD Zener Clamp
Voltage
IDD = 10 mA
30
V
Feedback Input Section(FB Pin)
VFB_Open
VFB Open Loop
Voltage
5.4
5.7
6.0
V
IFB_Short
FB pin short
circuit current
Short FB pin to GND and
measure current
1.45
mA
VTH_0D
Zero Duty Cycle
FB Threshold
Voltage
0.8
V
VTH_PL
Power Limiting
FB Threshold
Voltage
3.7
V
TD_PL
Power limiting
Debounce Time
50
mSec
ZFB_IN
Input Impedance
4
Kohm
Current Sense Input(Sense Pin)
Soft start time
4
ms
T_blanking
Leading edge
blanking time
270
ns
ZSENSE_IN
Input Impedance
40
Kohm
TD_OC
Over Current
Detection and
Control Delay
From Over Current Occurs
till the Gatedrive output start
to turn off
120
nSec
VTH_OC
Internal Current
Limiting
Threshold Voltage
FB=3.3V
0.72
0.77
0.82
V
Oscillator
FOSC
Normal Oscillation
Frequency
45
50
55
KHZ
△
f_Temp
Frequency
Temperature
Stability
5
%



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