UCC1810 Unitrode Semiconductor, UCC1810 Datasheet - Page 2

• Manufacturer Part Number: UCC1810
• Description: Low Power BiCMOS Dual Current Mode PWM
• Manufacturer: Unitrode Semiconductor

ABSOLUTE MAXIMUM RATINGS
Note 1: All voltages are with respect to GND. All currents are
positive into the specified terminals.
Note 2: Consult Unitrode Integrated Circuits Product & Applica-
tions Handbook for information regarding thermal
specifications and limitations of packages.
Note 3: In normal operation, V
limiting resistor. Absolute maximum of 11V applies when driven
from a low impedance such that the V
ceed 20mA.
ELECTRICAL CHARACTERISTICS
V
V
OUT1, OUT2 Current, Peak, 5% Duty Cycle . . . . . . . . . . . . 1A
OUT1, OUT2 Energy (Capacitive Load). . . . . . . . . . . . . . . 20 J
Analog Inputs (FB1, FB2, CS1, CS2, SYNC). . . . -0.3V to 6.3V
Operating Junction Temperature . . . . . . . . . . . . . . . . . . +150 C
Storage Temperature Range . . . . . . . . . . . . . –65 C to +150 C
Lead Temperature (Soldering, 10 seconds). . . . . . . . . . . 300 C
Reference Section
Oscillator Section
Error Amplifier Section
CC
CC
Output Voltage
Load Regulation
Line Regulation
Output Voltage
Output Noise Voltage
Long Term Stability
Output Short Circuit Current
Oscillator Frequency
Oscillator Frequency
Temperature Stability
Peak Voltage
Valley Voltage
Peak-to-Peak Amplitude
SYNC Threshold
SYNC Input Current
FB Input Voltage
FB Input Bias Current
Open Loop Voltage Gain
Unity Gain Bandwidth
COMP Sink Current
COMP Source Current
Minimum Duty Cycle
COMP Soft Start Rise Time
Voltage (Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11V
Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA
PARAMETER
CC
is powered through a current
CC
T
0mA < I
UVLO Stop Threshold Voltage+0.5V < V
Full temperature range, 0mA < I
10Hz < f < 10kHz, T
T
R
R
(Note 10)
SYNC = 5V
COMP = 2.5V
(Note 10)
FB = 2.7V, COMP = 1V
FB = 1.8V, COMP = 4V
COMP = 0V
FB = 1.8V, Rise from 0.5V to REF-1V
J
A
T
T
current does not ex-
= 25 C
= +125 C, 1000 Hours (Note 10)
= 30k, C
= 150k, C
Unless otherwise stated, these specifications apply for –55 C T
UCC1810; –40 C
V
same for both channels.
REF
CC
= 10V (Note 4); R
T
< 5mA
T
= 120pF (Note 5)
= 120pF (Note 5)
TEST CONDITIONS
J
= +25 C (Note 10)
2
T
A
T
CONNECTION DIAGRAM
DIL-16, SOIC-16 (TOP VIEW)
J or N Package, DW Package
= 150k; C
85 C for UCC2810; 0 C
REF
< 5mA
T
CC
= 120pF; No Load; T
< Shunt Voltage
T
A
4.925
MIN
4.88
2.25
0.80
2.44
–0.2
880
180
70 C for UCC3810;
A
0.3
–5
60
= T
J
. All parameters are the
5.000
TYP
5.00
0.05
1.65
2.45
2.50
–0.5
235
980
200
2.5
2.5
1.4
–8
30
73
A
5
7
5
2
5
125 C for
5.075
MAX UNITS
1080
5.10
2.65
2.00
2.56
–0.8
–25
220
3.5
25
0
1
UCC1810
UCC2810
UCC3810
MHz
kHz
kHz
mV
mV
mV
mA
mA
mA
dB
ms
%
%
V
V
V
V
V
V
V
V
A
A