UC3842 Просмотр технического описания (PDF) - STMicroelectronics
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UC3842 Datasheet PDF : 11 Pages
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UC2842/3/4/5-UC3842/3/4/5
ELECTRICAL CHARACTERISTICS (Unless otherwise stated, these specifications apply for -25 < Tamb <
85°C for UC2824X; 0 < Tamb < 70°C for UC384X; Vi = 15V (note 5); RT = 10K; CT = 3.3nF)
Sy mbo l
VREF
∆VREF
∆VREF
∆VREF/∆T
eN
ISC
fs
V4
V2
Ib
B
SVR
Io
Io
GV
V3
SVR
Ib
IOL
IOH
tr
tf
Parameter
Output Voltage
Line Regulation
Load Regulation
Temperature Stability
Total Output Variant
Output Noise Voltage
Long Term Stability
Output Short Circuit
Initial Accuracy
Voltage Stability
Temperature Stability
Amplitude
Input Voltage
Input Bias Current
AVOL
Unity Gain Bandwidth
Supply Voltage Rejection
Output Sink Current
Output Source Current
VOUT High
VOUT Low
Gain
Maximum Input Signal
Supply Voltage Rejection
Input Bias Current
Delay to Output
Output Low Level
Output High Level
Rise Time
Fall Time
Test Conditions
UC284X
UC384X
Uni t
Min. T yp. Max. Min. Typ . Max.
REFERENCE SECTION
Tj = 25°C Io = 1mA
12V ≤ Vi ≤ 25V
4.95 5.00 5.05 4.90 5.00 5.10 V
6 20
6 20 mV
1 ≤ Io ≤ 20mA
6 25
6 25 mV
(Note 2)
0.2 0.4
0.2 0.4 mV/°C
Line, Load, Temperature (2) 4.9
5.1 4.82
5.18 V
10Hz ≤ f ≤ 10KHz Tj = 25°C
50
(2)
50
µV
Tamb = 125°C, 1000Hrs (2)
5 25
5 25 mV
-30 -100 -180 -30 -100 -180 mA
OSCILLATOR SECTION
Tj = 25°C (6)
47 52 57 47 52 57 KHz
12 ≤ Vi ≤ 25V
TMIN ≤ Tamb ≤ TMAX (2)
VPIN4 Peak to Peak
ERROR AMP SECTION
0.2 1
5
1.7
0.2 1 %
5
%
1.7
V
VPIN1 = 2.5V
2.45 2.50 2.55 2.42 2.50 2.58 V
-0.3 -1
-0.3 -2 µA
2 ≤ Vo ≤ 4V
(2)
65 90
0.7 1
65 90
0.7 1
dB
MHz
12V ≤ Vi ≤ 25V
60 70
60 70
dB
VPIN2 = 2.7V VPIN1 = 1.1V 2
6
26
V
VPIN2 = 2.3V VPIN1 = 5V -0.5 -0.8
-0.5 -0.8
mA
VPIN2 = 2.3V;
56
56
V
RL = 15KΩ to Ground
VPIN2 = 2.7V;
RL = 15KΩ to Pin 8
0.7 1.1
0.7 1.1 V
CURRENT SENSE SECTION
(3 & 4)
2.85 3 3.15 2.8 3 3.2 V/V
VPIN1 = 5V (3)
12 ≤ Vi ≤ 25V (3)
0.9 1 1.1 0.9 1 1.1 V
70
70
dB
-2 -10
-2 -10 µA
150 300
150 300 ns
OUTPUT SECTION
ISINK = 20mA
0.1 0.4
0.1 0.4 V
ISINK = 200mA
1.5 2.2
1.5 2.2 V
ISOURCE = 20mA
13 13.5
13 13.5
V
ISOURCE = 200mA
12 13.5
12 13.5
V
Tj = 25°C CL = 1nF (2)
50 150
50 150 ns
Tj = 25°C CL = 1nF (2)
50 150
50 150 ns
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