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)
<
UC284X
UC384X
Symbol
Parameter
Test Conditions
Unit
Min. Typ. Max. Min. Typ. Max.
REFERENCE SECTION
VREF
Output Voltage
Line Regulation
4.95 5.00 5.05 4.90 5.00 5.10
V
T = 25 C I = 1mA
°
j
o
6
6
20
25
6
6
20
25
mV
mV
V
V
12V
V
i
25V
∆
≤
≤
REF
REF
Load Regulation
1
I
o
20mA
≤
∆
≤
Temperature Stability
Total Output Variant
Output Noise Voltage
(Note 2)
0.2 0.4
5.1 4.82
0.2
0.4
5.18
∆VREF/∆T
mV/°C
V
Line, Load, Temperature (2) 4.9
eN
50
50
5
10Hz ≤ f ≤ 10KHz Tj = 25°C
µV
(2)
Long Term Stability
Output Short Circuit
5
25
25
mV
Tamb = 125 C, 1000Hrs (2)
°
ISC
-30 -100 -180 -30 -100 -180 mA
OSCILLATOR SECTION
fs
Initial Accuracy
Voltage Stability
Temperature Stability
Amplitude
47
52
0.2
5
57
1
47
52
0.2
5
57
1
KHz
%
T = 25 C (6)
°
j
12
V
25V
≤
≤
≤
i
%
TMIN
T
TMAX (2)
≤
amb
V4
VPIN4 Peak to Peak
ERROR AMP SECTION
VPIN1 = 2.5V
1.7
1.7
V
V2
Ib
Input Voltage
Input Bias Current
AVOL
2.45 2.50 2.55 2.42 2.50 2.58
V
-0.3
90
1
-1
-0.3
90
1
-2
A
µ
65
0.7
60
2
65
0.7
60
2
dB
MHz
dB
V
2
V
4V
≤
≤
o
B
SVR
Io
Unity Gain Bandwidth
Supply Voltage Rejection
Output Sink Current
Output Source Current
VOUT High
(2)
70
6
70
6
12V
V
i
25V
≤
≤
VPIN2 = 2.7V VPIN1 = 1.1V
VPIN2 = 2.3V VPIN1 = 5V
VPIN2 = 2.3V;
Io
-0.5 -0.8
-0.5 -0.8
mA
V
5
6
5
6
R = 15K to Ground
Ω
L
V
OUT Low
VPIN2 = 2.7V;
0.7 1.1
0.7
1.1
V
R = 15K to Pin 8
Ω
L
CURRENT SENSE SECTION
GV
V3
Gain
(3 & 4)
2.85
0.9
3
1
3.15 2.8
3
1
3.2
1.1
V/V
V
Maximum Input Signal
Supply Voltage Rejection
Input Bias Current
VPIN1 = 5V (3)
1.1
0.9
SVR
Ib
70
-2
70
-2
dB
12
V
i
25V (3)
≤
≤
-10
-10
µ
A
Delay to Output
150 300
150 300
ns
OUTPUT SECTION
ISINK = 20mA
IOL
Output Low Level
Output High Level
0.1 0.4
1.5 2.2
0.1
1.5
0.4
2.2
V
V
ISINK = 200mA
IOH
ISOURCE = 20mA
13 13.5
12 13.5
50
13 13.5
12 13.5
50
V
I
SOURCE = 200mA
V
tr
tf
Rise Time
Fall Time
150
150
150
150
ns
ns
T = 25 C CL = 1nF (2)
°
j
50
50
Tj = 25°C CL = 1nF (2)
3/11
STMICROELECTRONICS [ ST ]
