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OB5269 View Datasheet(PDF) - On-Bright Electronics

Part Name
Description
View to exact match
OB5269
On-Bright
On-Bright Electronics  On-Bright
OB5269 Datasheet PDF : 11 Pages
1 2 3 4 5 6 7 8 9 10
OB5269
High Voltage Green Mode PWM Controller
ELECTRICAL CHARACTERISTICS
(TA = 25, VDD=15V, unless otherwise noted)
Symbol
Parameter
Test Conditions
Min Typ.
IHV
Supply current from HV pin VDD=2V, HV=100V
2 2.8
leakage
HV pin leakage current after
startup
VDD=15V, HV=500V
Supply Voltage (VDD)
VDD=UVLO(OFF)-
Istartup
VDD Start up Current
1V, measure leakage
5
current into VDD
I_VDD_Operation Operation Current
VFB=3V
1.8
UVLO(ON)
VDD Under Voltage Lockout
Enter
8.3 9.3
UVLO(OFF)
VDD Under Voltage Lockout
Exit (Recovery)
14.3 15.3
Vpull-up
Pull-up PMOS active
12
to Vdd_clamp
Ivdd=10mA
30 32
l OVP(ON)
Over voltage
voltage
protection
FB=3V
Ramp up VDD until
24
gate clock is off
26
tia Vth_recovery
Auto release threshold
voltage
5
Vth_latch
Latch release threshold
4.2
n Feedback Input Section(FB Pin)
VFB_Open
e Avcs
VFB Open Loop Voltage
PWM input gain Δ VFB/ Δ
VCS
3.9 5
1.7
fid Maximum duty Max duty cycle @
cycle
VDD=14V,VFB=3V,VCS=0.3V
75 80
n Vref_green
The threshold enter green
mode
2
Vref_burst_H
The threshold exit burst mode
1.2
o Vref_burst_L
The threshold enter burst
mode
1.1
C IFB_Short
FB pin short circuit current
Short FB pin to GND
and measure current
360
t VTH_PL
Power Limiting FB Threshold
Voltage
3.7
h TD_PL
Power limiting Debounce
Time
80 88
rig ZFB_IN
Input Impedance
17
Current Sense Input(CS Pin)
SST
Soft start time
4
-B T_blanking
Leading edge blanking time
320
nZSENSE_IN
Input Impedance
40
From Over Current
OTD_OC
Over Current Detection and Occurs till the gate
Control Delay
driver output starts to
60
turn off
Internal Current Limiting
VTH_OC
Threshold Voltage with zero
duty cycle
0.72 0.75
Vocp_clamping CS voltage clamper
0.95
Oscillator
Max Unit
5 mA
Ktec 10 uA
20 uA
2.5 mA
10.3 V
16.3 V
V
34 V
28 V
V
V
V
V/V
85 %
V
V
V
uA
V
96 mSec
Kohm
ms
ns
Kohm
nSec
0.78 V
V
©On-Bright Electronics
Confidential
-5-
Preliminary Datasheet
OB_DOC_DS_526902
 

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