UCC2813-0/-1/-2/-3/-4/-5
UCC3813-0/-1/-2/-3/-4/-5
ABSOLUTE MAXIMUM RATINGS (Note 1)
VCC Voltage (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.0V
VCC Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30.0mA
OUT Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0A
OUT Energy (Capacitive Load) . . . . . . . . . . . . . . . . . . . 20.0µJ
Analog Inputs (FB, CS) . . . . . . . . . . . . . . . . . . . . –0.3V to 6.3V
Power Dissipation at T
A
< +25°C (N Package). . . . . . . . . 1.0W
Power Dissipation at T
A
< +25°C (D Package). . . . . . . . 0.65W
Storage Temperature . . . . . . . . . . . . . . . . . . . –65 C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . –55 C to +150°C
Lead Temperature (Soldering, 10 Seconds). . . . . . . . . +300°C
CONNECTION DIAGRAMS
DIL-8 or SOIC-8 (TOP VIEW)
N or D PACKAGE
COMP
1
8
REF
FB
2
7
VCC
CS
3
6
OUT
Note 1: All voltages are with respect to GND. All currents are
positive into the specified terminal. Consult Unitrode Integrated
Circuits databook for information regarding thermal specifica-
tions and limitations of packages.
Note 2: In normal operation VCC is powered through a current
limiting resistor. Absolute maximum of 12V applies when VCC
is driven from a low impedance source such that ICC does not
exceed 30mA.
UCC2813
UCC3813
TEMPERATURE RANGE
–40°C TO +85°C
0°C TO +70°C
PACKAGES
N, D, PW
N, D, PW
RC
4
5
GND
TSSOP-8 (TOP VIEW)
PW PACKAGE
1
2
COMP
FB
CS
RC
REF
VCC
OUT
GND
8
7
6
5
ORDERING INFORMATION
UCC
813
–
PRODUCT OPTION
PACKAGE
TEMPERATURE RANGE
3
4
UCC2813-x; 0°C
≤
T
A
≤
+70°C for UCC3813-x; VCC = 10V (Note 3); RT = 100k from REF to RC; CT=330pF from RC to GND;
0.1µF capacitor from VCC to GND; 0.1µF capacitor from VREF to GND. T
A
= T
J
.
PARAMETER
Reference Section
Output Voltage
Load Regulation
Total Variation
Output Noise Voltage
Long Term Stability
Output Short Circuit
Oscillator Section
Oscillator Frequency
Temperature Stability
Amplitude Peak-to-Peak
Oscillator Peak Voltage
UCCx813-0/-1/-2/-4 (Note 4)
UCCx813-5 (Note 4)
(Note 9)
2.25
40
26
46
31
2.5
2.40
2.45
2.55
52
36
kHz
kHz
%
V
V
T
J
= +25°C, I = 0.2mA, UCCx813-0/-1/-2/-4
T
J
= +25°C, I = 0.2mA, UCCx813-5
0.2mA < I < 5mA
UCCx813 -0-1/-2/-4 (Note 7)
UCCx813-5 (Note 7)
10Hz
≤
f
≤
10kHz, T
J
= +25°C (Note 9)
T
A
= +125 C, 1000 Hours (Note 9)
–5
4.84
3.84
4.925
3.94
5.00
4.00
10
5.00
4.00
70
5
–35
5.075
4.06
30
5.10
4.08
V
V
mV
V
V
µV
mV
mA
TEST CONDITIONS
MIN
UCC2813-x
UCC3813-x
TYP
MAX
UNITS
ELECTRICAL CHARACTERISTICS
Unless otherwise stated, these specifications apply for –40°C
≤
T
A
≤
+85°C for
2
TI [ TEXAS INSTRUMENTS ]
