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PDF OB2212 Datasheet ( Hoja de datos )

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

1 Page

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

5 Page

OB2212 arduino
OB2211/OB2212
Primary-Side Regulation PWM Power Switch
Symbol
A
A1
A2
B
B1
C
D
E
E1
e
L
E2
Dimensions In Millimeters
Min
3.710
Max
4.310
0.500
3.200
3.600
0.350
0.650
1.524 (BSC)
0.200
0.360
9.000
9.500
6.200
6.600
7.320
7.920
2.540 (BSC)
3.000
3.600
8.200
9.000
Dimensions In Inches
Min
0.146
Max
0.170
0.020
0.126
0.142
0.014
0.026
0.060 (BSC)
0.008
0.014
0.354
0.374
0.244
0.260
0.288
0.312
0.100 (BSC)
0.118
0.142
0.323
0.354
©On-Bright Electronics
- 10 -
On-Bright Confidential to MicroBridge
OB_DOC_DS_1100

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