UC1842A/3A/4A/5A
UC2842A/3A/4A/5A
UC3842A/3A/4A/5A
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Supply Voltage (Low Impedance Source) . . . . . . . . . . . . . . 30V
Supply Voltage (I
CC
mA). . . . . . . . . . . . . . . . . . . . . Self Limiting
Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
1A
Output Energy (Capacitive Load) . . . . . . . . . . . . . . . . . . . . . 5µJ
Analog Inputs (Pins 2, 3) . . . . . . . . . . . . . . . . . . -0.3V to +6.3V
Error Amp Output Sink Current . . . . . . . . . . . . . . . . . . . . 10mA
Power Dissipation at T
A
≤
25°C (DIL-8) . . . . . . . . . . . . . . . . 1W
Storage Temperature Range . . . . . . . . . . . . . -65°C to +150°C
Lead Temperature (Soldering, 10 Seconds) . . . . . . . . . . 300°C
Note 1. All voltages are with respect to Ground, Pin 5. Currents
are positive into, negative out of the specified terminal. Consult
Packaging Section of Databook for thermal limitations and con-
siderations of packages. Pin numbers refer to DIL package only.
CONNECTION DIAGRAMS
DIL-8, SOIC-8 (TOP VIEW)
J or N, D8 Package
SOIC-14 (TOP VIEW)
D Package
PLCC-20, LCC-20
(TOP VIEW)
Q, L Packages
PACKAGE PIN FUNCTION
FUNCTION
PIN
N/C
1
Comp
2
N/C
3-4
V
FB
5
N/C
6
I
SENSE
7
N/C
8-9
R
T
/C
T
10
N/C
11
Pwr Gnd
12
Gnd
13
N/C
14
Output
15
N/C
16
V
C
17
V
CC
18
N/C
19
V
REF
20
UC184xA; -40°C
≤
T
A
≤
85°C for the UC284xA; 0
≤
T
A
≤
70°C for the UC384xA; V
CC
= 15V (Note 5); R
T
= 10k; C
T
= 3.3nF; T
A
= T
J
; Pin
numbers refer to DIL-8.
PARAMETER
Reference Section
Output Voltage
Line Regulation
Load Regulation
Temp. Stability
Total Output Variation
Output Noise Voltage
Long Term Stability
Output Short Circuit
Oscillator Section
Initial Accuracy
Voltage Stability
Temp. Stability
Amplitude
Discharge Current
TEST CONDITIONS
UC184xA\UC284xA
MIN. TYP. MAX.
4.95
5.00
6
6
0.2
5.05
20
25
0.4
5.1
UC384xA
UNITS
MIN. TYP. MAX.
4.90
5.00
6
6
0.2
5.10
20
25
0.4
5.18
V
mV
mV
mV/°C
V
µV
mV
mA
kHz
%
%
V
mA
mA
ELECTRICAL CHARACTERISTICS
Unless otherwise stated, these specifications apply for -55°C
≤
T
A
≤
125°C for the
T
J
= 25°C, I
O
= 1mA
12
≤
V
IN
≤
25V
1
≤
I
O
≤
20mA
(Note 2, Note 7)
Line, Load, Temp.
10Hz
≤
f
≤
10kHz
T
J
= 25°C (Note 2)
T
A
= 125°C, 1000Hrs. (Note 2)
4.9
50
5
-100
52
0.2
5
1.7
8.3
4.82
50
5
-100
52
0.2
5
1.7
8.3
-30
T
J
= 25°C (Note 6)
12
≤
V
CC
≤
25V
T
MIN
≤
T
A
≤
T
MAX
(Note 2)
V
PIN 4
peak to peak (Note 2)
T
J
= 25°C, V
PIN 4
= 2V (Note 8)
V
PIN 4
= 2V (Note 8)
47
25
-180
57
1
-30
47
25
-180
57
1
7.8
7.5
8.8
8.8
7.8
7.6
8.8
8.8
2
TI [ TEXAS INSTRUMENTS ]
