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CS3843BGN8 Datasheet(PDF) 2 Page - ON Semiconductor

No. de pieza CS3843BGN8
Descripción Electrónicos  Off-Line Current Mode PWM Control Circuit
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Fabricante Electrónico  ONSEMI [ON Semiconductor]
Página de inicio  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

CS3843BGN8 Datasheet(HTML) 2 Page - ON Semiconductor

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Electrical Characteristics: 0≤TA≤70°C, VCC=15V (Note 1); RT=680Ω, CT=.022µF for triangular mode,
RT=10kΩ, CT=3.3nF for sawtooth mode (see Fig. 3), unless otherwise stated
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
s Reference Section
Output Voltage
TJ=25°C, IOUT=1mA
4.90
5.00
5.10
V
Line Regulation
12
≤V
IN≤25V
6
20
mV
Load Regulation
1
≤I
OUT≤20mA
6
25
mV
Temperature Stability
(Note 2)
0.2
0.4
mV/°C
Total Output Variation
Line, Load, Temperature (Note 2)
4.82
5.18
V
Output Noise Voltage
10Hz
≤f≤10kHz, T
J=25°C (Note 2)
50
µV
Long Term Stability
TA=125°C, 1kHrs. (Note 2)
5
25
mV
Output Short Circuit
TA=25°C
-30
-100
-180
mA
s Oscillator Section
Initial Accuracy
Sawtooth Mode (see Fig. 3), TJ=25°C
47
52
57
kHz
Triangular Mode (see Fig. 3), TJ=25°C
44
52
60
kHz
Voltage Stability
12
≤V
CC≤25V
0.2
1.0
%
Temp. Stability
Sawtooth Mode TMIN≤TA≤TMAX
(Note 2)
5
%
Triangular Mode TMIN≤TA≤TMAX
(Note 2)
8
%
Amplitude
Oscillator peak to peak
1.7
V
Discharge Current
TJ=25°C
7.5
8.3
9.3
mA
TMIN≤TA≤TMAX
7.2
9.5
mA
s Error Amp Section
Input Voltage
VCOMP=2.5V
2.42
2.50
2.58
V
Input Bias Current
-0.3
-2.0
µA
AVOL
2
≤V
OUT≤4V
65
90
dB
Unity Gain Bandwidth
(Note 2)
0.7
1.0
MHz
PSRR
12
≤V
CC≤25V
60
70
dB
Output Sink Current
VFB=2.7V, VOSC=1.1V
2
6
mA
Output Source Current
VFB=2.3V, VOSC=5V
-0.5
-0.8
mA
VOUT High
VFB=2.3V, RL=15kΩ to ground
5
6
V
VOUT Low
VFB=2.7V, RL=15kΩ to VREF
0.7
1.1
V
s Current Sense Section
Gain
(Notes 3 & 4)
2.85
3.00
3.15
V/V
Maximum Input Signal
VCOMP=5V (Note 3)
0.9
1.0
1.1
V
PSRR
12
≤V
CC≤25V (Note 3)
70
dB
Input Bias Current
-2
-10
µA
Delay to Output
TJ=25°C (Note 2)
150
300
ns
s Output Section
Output Low Level
ISINK=20mA
0.1
0.4
V
ISINK=200mA
1.5
2.2
V
Output High Level
ISOURCE=20mA
13.0
13.5
V
ISOURCE=200mA
12.0
13.5
V


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