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