UC1842A/3A/4A/5A
UC2842A/3A/4A/5A
UC3842A/3A/4A/5A
ELECTRICAL CHARACTERISTICS Unless otherwise stated, these specifications apply for –55°C ≤ TA ≤ 125°C for the
UC184xA; –40°C ≤ TA ≤ 125°C for the UC284xAQ; –40°C ≤ TA ≤ 85°C for the UC284xA; 0 ≤ TA ≤ 70°C for the UC384xA; VCC = 15V
(Note 5); RT = 10k; CT = 3.3nF; TA = TJ; Pin numbers refer to DIL-8.
UC184xA\UC284xA
UC384xA
PARAMETER
Reference Section
TEST CONDITIONS
UNITS
MIN. TYP. MAX. MIN. TYP. MAX.
Output Voltage
TJ = 25°C, IO = 1mA
4.95
4.9
5.00
6
5.05
20
4.90
4.82
5.00
6
5.10
20
V
mV
Line Regulation
12 ≤ VIN 25V
1 ≤ IO ≤ 20mA
(Note 2, Note 7)
Load Regulation
Temp. Stability
6
25
6
25
mV
0.2
0.4
5.1
0.2
0.4
5.18
mV/°C
V
Total Output Variation
Output Noise Voltage
Line, Load, Temp.
10Hz ≤ f ≤ 10kHz
TJ = 25°C (Note 2)
TA = 125°C, 1000Hrs. (Note 2)
50
5
50
5
µV
mV
mA
Long Term Stability
Output Short Circuit
Oscillator Section
Initial Accuracy
25
25
-30
47
-100
-180
-30
47
-100
-180
TJ = 25°C (Note 6)
52
0.2
5
57
1
52
0.2
5
57
1
kHz
%
Voltage Stability
Temp. Stability
12 ≤ VCC ≤ 25V
TMIN ≤ TA ≤ TMAX (Note 2)
VPIN 4 peak to peak (Note 2)
TJ = 25°C, VPIN 4 = 2V (Note 8)
VPIN 4 = 2V (Note 8)
%
Amplitude
1.7
8.3
1.7
8.3
V
Discharge Current
7.8
7.5
8.8
8.8
7.8
7.6
8.8
8.8
mA
mA
Error Amp Section
Input Voltage
VPIN 1 = 2.5V
2.45
2.50
-0.3
90
1
2.55
-1
2.42
2.50
-0.3
90
1
2.58
-2
V
µA
dB
MHz
dB
mA
mA
V
Input Bias Current
AVOL
2 ≤ VO ≤ 4V
TJ = 25°C (Note 2)
65
0.7
60
2
65
0.7
60
2
Unity Gain Bandwidth
PSRR
12 ≤ VCC ≤ 25V
70
6
70
6
Output Sink Current
Output Source Current
VOUT High
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
-0.5
5
-0.8
6
-0.5
5
-0.8
6
VOUT Low
0.7
1.1
0.7
1.1
V
Current Sense Section
Gain
(Note 3, Note 4)
2.85
0.9
3
1
3.15
1.1
2.85
0.9
3
1
3.15
1.1
V/V
V
Maximum Input Signal
PSRR
VPIN 1 = 5V (Note 3)
12 ≤ VCC ≤ 25V (Note 3)
70
-2
70
-2
dB
µA
ns
Input Bias Current
Delay to Output
Output Section
Output Low Level
-10
-10
VPIN 3 = 0 to 2V (Note 2)
150
300
150
300
ISINK = 20mA
0.1
15
0.4
2.2
0.1
15
0.4
2.2
V
V
ISINK = 200mA
Output High Level
ISOURCE = 20mA
13
12
13.5
13.5
50
13
12
13.5
13.5
50
V
ISOURCE = 200mA
V
Rise Time
TJ = 25°C, CL = 1nF (Note 2)
TJ = 25°C, CL = 1nF (Note 2)
VCC = 5V, ISINK = 10mA
150
150
1.2
150
150
1.2
ns
ns
V
Fall Time
50
50
UVLO Saturation
0.7
0.7
3
TI [ TEXAS INSTRUMENTS ]
