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AP3902 Datasheet(PDF) 5 Page - BCD Semiconductor Manufacturing Limited

Part # AP3902
Description  LOW POWER PWM SWITCH FOR OFF-LINE SMPS
PDF  9 Pages
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Manufacturer  BCDSEMI [BCD Semiconductor Manufacturing Limited]
Direct Link  http://www.bcdsemi.com
Logo BCDSEMI - BCD Semiconductor Manufacturing Limited

AP3902 Datasheet(HTML) 5 Page - BCD Semiconductor Manufacturing Limited

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LOW POWER PWM SWITCH FOR OFF-LINE SMPS
AP3902
Data Sheet
5
BCD Semiconductor Manufacturing Limited
Sep. 2008 Rev. 1.0
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Power Transistor Section
Collector-Emitter Breakdown
Voltage
VCES
VBE=0, ICE=100μA
700
V
Collector-Emitter Saturation
Voltage
VCE, SAT
IC=0.5A, IB=0.1A
0.3
V
DC Current Gain
hFE
IC=0.5A, VCE=2V
13
18
30
UVLO Section
Turn on Threshold Voltage
VCC(on)
5.00
5.25
5.50
V
Turn off Threshold Voltage
VCC(off)
3.37
3.55
3.73
V
Discharge Voltage
VDIS
2.7
2.9
3.1
V
Standby Current Section
Start-up Current
IST
VCC = 4V
0.22
0.4
mA
Operating Current
ICC(op)
0.45
0.7
VCC Zener Voltage
VZ
ICC=5mA
6.5
V
Dynamic Impedance
RVCC
VCC = 3.8Vto 4.8V
18
26
k
Ω
Internal Oscillator Section
Switching Frequency
fSW
55
60
70
kHz
Frequency Dithering
±2
±3.5
±5
Temperature Stability
-40 to 85oC
510
%
Driver and Output Section
OUT Turn on Voltage
VOUT(on)
8.5
11
V
OUT Turn off Voltage
VOUT(off)
4.8
6
7.2
V
Rise Time
tR
CL=1nF, 15Ω pull-up
60
ns
Fall Time
tF
CL=1nF, 15Ω pull-up
30
Maximum Duty Cycle
DMAX
VCC(off) + 0.2V
68
75
82
%
Minimum Duty Cycle
VCC=VCC(on) - 0.2V
3
Driver OUT On-Resistance
ROUT
IOUT=0.7A
2.5
4
Ω
Switch Off Current
Driver off, VOUT=10V
20
40
μA
Effective Current Limit
ILIM
VCC=VCC(off) + 0.5V
680
800
920
mA
(VCC=4V, TJ=25
oC, unless otherwise specified.)
Electrical Characteristics



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