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PDF OB2212 Datasheet ( Hoja de datos )

Número de pieza OB2212
Descripción Primary-Side Regulation PWM Power Switch
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OB2212 datasheet

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OB2212 pdf
OB2211/OB2212
Primary-Side Regulation PWM Power Switch
ELECTRICAL CHARACTERISTICS
(TA = 25OC, VDD=VDDG=16V, if not otherwise noted)
Symbol
Parameter
Test Conditions
Min Typ Max Unit
Supply Voltage (VDD) Section
I DD ST
Standby current
VDD=13V
5 10
I DD op
Operation Current
Operation supply current
INV=1.25V, CS=0V, -
VDD=VDDG=20V
1.0 2.0
UVLO(ON)
VDD Under Voltage
Lockout Enter
7.5 8.5 9.5
UVLO(OFF)
VDD Under Voltage
Lockout Exit
14.0 15 16.0
OVP(ON)
Over voltage protection
voltage
CS=0V,INV=1V
Ramp up VDD until
gate clock is off
28.5
30.0
31.5
VDD_clamp
IDD=10mA
33
Current Sense Input Section
TLEB
LEB time
540
Vth_oc
Td_oc
V TH_OC_test
Propagation delay
780 820 860
300
ZSENSE_IN
T_ss
Input Impedance
Soft start time
50
4
uA
mA
V
V
V
V
ns
mV
ns
Kohm
ms
CV Section
Freq
Freq_Burst
f/Freq
Normal mode frequency
Burst Mode Base
Frequency
Frequency shuffling range
45 50 55
22
+/-4
KHz
KHz
%
CC Section
Freq
Oscillation Frequency
Minimum frequency
Maximum frequency
12
50
KHz
KHz
Error Amplifier section
Vref_EA
Reference voltage for EA
Gdc DC gain of the EA
GBW
Unity gain bandwidth
1.21 1.25 1.29
50
37.5
V
dB
kHz
Power MOSFET Section
BVdss
Mos Drain-Source
Breakdown Voltage
RDS(on)
Static Drain to Source On OB2211
Resistance
OB2212
650
12 15
10 12
V
Ώ
©On-Bright Electronics
On-Bright Confidential to MicroBridge
-5-
OB_DOC_DS_1100

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