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UC3842D 데이터시트(PDF) 3 Page - NXP Semiconductors

부품명 UC3842D
상세설명  Current-mode PWM controller
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제조업체  PHILIPS [NXP Semiconductors]
홈페이지  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

UC3842D 데이터시트(HTML) 3 Page - NXP Semiconductors

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Philips Semiconductors Linear Products
Product specification
UC3842
Current-mode PWM controller
August 31, 1994
1102
DC AND AC ELECTRICAL CHARACTERISTICS
0
≤TJ≤70°C for UC3842; VCC=15V; RT=10kW; CT=3.3nF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
UC3842
UNIT
SYMBOL
PARAMETER
TEST CONDITIONS
Min
Typ
Max
UNIT
Reference section
VOUT
Output voltage
TJ=25°C, IO=1mA
4.90
5.00
5.10
V
Line regulation
12
≤VIN≤25V
6
20
mV
Load regulation
1
≤IO≤20mA
6
25
mV
Temp. stability1
0.2
0.4
mV/
°C
Total output variation1
Line, load, temp.
4.82
5.18
V
VNOISE
Output noise voltage1
10Hz
≤f≤10kHz, TJ=25°C
50
µV
Long-term stability1
TJ=125°C, 1000 Hrs.
5
25
mV
Output short-circuit
TJ=25
-30
-100
-130
mA
Output short-circuit
-55<TJ≤0°C
-30
-100
-180
mA
Oscillator section
Initial accuracy
TJ=25°C
47
52
57
kHz
Voltage stability
12
≤VCC≤25V
0.2
1
%
Temp. stability1
TMIN≤TJ≤TMAX
5
%
Amplitude
VPIN 4 peak-to-peak
1.7
V
Error amp section
Input voltage
V Pin 1=2.5V
2.42
2.50
2.58
V
IBIAS
Input bias current
-0.3
-2
µA
AVOL
2
≤VO≤4V
65
90
dB
Unity gain bandwidth1
TJ=25°C
0.7
1
MHz
Unity gain bandwidth
TMIN<TJ<TMAX
0.5
MHz
PSRR
Power supply rejection ratio
12
≤VCC≤25V
60
70
dB
ISINK
Output sink current
VPIN 2=2.7V, VPIN 1=1.1V
2
6
mA
ISOURCE
Output source current
VPIN 2=2.3V, VPIN 1=5V
-0.5
-0.8
mA
VOUT High
VPIN 2=2.3V, RL=15k to ground
5
6
V
VOUT Low
VPIN 2=2.7V, RL=15k to Pin 8
0.7
1.1
V
Current sense section
Gain 2, 3
2.85
3
3.15
V/V
Maximum input signal2
VPIN 1=5V
0.9
1
1.1
V
PSRR
Power supply rejection ratio2
12
≤VCC≤25V
70
dB
IBIAS
Input bias current
-2
-10
µA
Delay to output1
150
300
ns


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