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PDF OB2201 Datasheet ( Hoja de datos )

Número de pieza OB2201
Descripción High Performance Quasi-Resonant PWM Controller
Fabricantes On-Bright Electronics 
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OB2201 datasheet

1 Page

OB2201 pdf
OB2201
High Performance Quasi-Resonant PWM Controller
ELECTRICAL CHARACTERISTICS
(TA = 25OC, VCC=16V, RI=20K Ohm if not otherwise noted)
Symbol
Parameter
Test Conditions
Min Typ Max Unit
Supply Voltage Section (VCC Pin)
I_VCC_Startup VCC Start up Current
VCC =UVLO(OFF)-1.5V,
Measure current into VCC
-
5 15 uA
I_VCC_quiet
I_VCC_operation
Operation Current without
switching
Operation current with
switching
FB=3V
FB=3V,
GATE
-
1nF load at -
2.0 4.0 mA
3.0 5.0 mA
UVLO(ON)
UVLO(OFF)
VCC Under Voltage
Lockout Enter
VCC Under Voltage
Lockout Exit (Startup)
8.0 9.0 10.0 V
15 16 17 V
OVP(ON)
VCC Over Voltage
Protection Enter
28 V
VCC_Clamp
VCC Zener
Voltage
Clamp I_VCC = 5 mA
29 V
Feedback Input Section (FB Pin)
AVCS
PWM Input Gain
ΔVFB /ΔVcs
- 3.5 - V/V
VFB_Open
FB Open Voltage
-- 5.3 -- V
IFB_Short
VTH_BM_on
VTH_BM_off
VTH_PL
FB pin short circuit
current
Burst Mode on threshold
Burst Mode off threshold
Power Limiting FB
Threshold Voltage
Short FB pin to GND,
measure current
--
-
-
-
1.5 -
0.8 -
0.7 -
4.4 -
mA
V
V
V
TD_PL
Power limiting Debounce
Time
ZFB_IN
Input Impedance
Current Sense Input Section (CS Pin)
T_blanking
CS Input Leading Edge
Blanking Time
-- 80 -- ms
- 4 - Kohm
- 300 - ns
VTH_OCP_zero_
ontime
VTH_OCP_max
Internal current
threshold
Internal current
threshold
limiting
limiting
Zero duty cycle
Maximum duty cycle
0.41
5
0.45
0.48
5
V
- 0.80 - V
VTH_CS_min
Flodback mode and burst
mode CS peak
0.3 V
TD_OC
Over Current Detection
and Control Delay
CL=1nf at GATE,
- 100 -- ns
Demagnetization Detection Section (DEM Pin)
Demagnetization
VTH_DEM
comparator threshold
voltage
-- 75 -- mV
VDEM_clamp(neg)
VDEM_clamp(pos)
Tsupp
TOUT
TDEM_delay
Negative clamp voltage
Positive clamp voltage
Suppression of the
transformer ringing at
start of secondary stroke
Timeout after last demag
transistion
Demag propagation delay
- -0.7 - V
- 6.0 - V
-- 2.5 -- us
-- 5 -- us
- 250 - ns
©On-Bright Electronics
Confidential
-5-
Datasheet
OB_DOC_DS_2201A1

5 Page

OB2201 arduino
OB2201
High Performance Quasi-Resonant PWM Controller
PACKAGE MECHANICAL DATA
8-Pin Plastic DIP
Symbol
A
A1
A2
B
B1
C
D
E
E1
e
L
E2
Dimensions In Millimeters
Min Max
3.710
5.334
0.381
3.175
3.600
0.350
0.650
1.524 (BSC)
0.200
0.360
9.000
10.160
6.200
6.600
7.320
7.920
2.540 (BSC)
2.921
3.810
8.200
9.525
Dimensions In Inches
Min Max
0.146
0.21
0.015
0.125
0.142
0.014
0.026
0.06 (BSC)
0.008
0.014
0.354
0.4
0.244
0.260
0.288
0.312
0.1 (BSC)
0.115
0.15
0.323
0.375
©On-Bright Electronics
Confidential
- 11 -
Datasheet
OB_DOC_DS_2201A1

11 Page





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