
2
UC1584
UC2584
UC3584
ABSOLUTE MAXIMUM RATINGS
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V
V
FLT
Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . 50V, 30V at 2A
Supply Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA
Analog Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 to 20V
SYNC Maximum Sink Current. . . . . . . . . . . . . . . . . . . . . 600
μ
A
PWM Driver, I
OUT
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
300mA
PWM Driver, I
OUT
(Peak). . . . . . . . . . . . . . . . . . . . . . . . .
±
1.5A
Maximum Operating Frequency . . . . . . . . . . . . . . . . . . . . 1MHz
Power Dissipation at T
A
= 60°C . . . . . . . . . . . . . . . . . . . . . . 1W
Storage Temperature . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
Junction Temperature. . . . . . . . . . . . . . . . . . . . –55°C to 150°C
Lead Temperature (Soldering, 10 sec.). . . . . . . . . . . . . . 300°C
Currents are positive into, negative out of specified terminal.
Consult Packaging Section of Databook for thermal limitations
and considerations of packages.
CONNECTION DIAGRAMS
DIL-16, SOIC-16 (Top View)
J, N or DW Packages
ELECTRICAL CHARACTERISTICS:
Unless otherwise specified, T
A
= 0°C to 70°C for the UC3584, –40°C to 85°C for
the UC2584, and –55°C to 125°C for the UC1584, VCC = 15V. T
A
= T
J
.
PARAMETERS
TEST CONDITIONS
Error Amplifier
FB
COMP = FB
I
FB
V
COMP
= V
FB
COMP V
OL
FB = 1.6V, I
COMP
= 200
μ
A
COMP V
OH
FB = 1.4V, I
COMP
= –200
μ
A
AVOL
PSRR (COMP)
COMP = FB, VCC = 14V to 16V
GBW Product
F = 100kHz
Oscillator
Frequency
R
T
= 3.75k, C
T
= 400pF, No Synchronization
Ramp Low
R
T
= 3.75k, C
T
= 400pF, No Synchronization
Ramp High
R
T
= 3.75k, C
T
= 400pF, No Synchronization
Ramp Amplitude
R
T
= 3.75k, C
T
= 400pF, No Synchronization
PWM
Maximum Duty Cycle
COMP = 4.5V
Minimum Duty Cycle
COMP = 0V
PWM DRIVER
V
SAT
High
V
FLT
– V
OUT
, I
OUT
= –100mA
V
SAT
Low
V
OUT
– V
SRC
, I
OUT
= 50mA
T
RISE
Load = 1nF, SRC = 0V, Measure V
OUT
1V to 9V
T
FALL
Load = 1nF, SRC = 0V, Measure V
OUT
9V to 1V
MIN
TYPE
MAX
UNITS
1.468
150
1.5
300
50
5.5
80
1.532
450
400
7
V
nA
mV
V
dB
dB
MHz
5.1
60
60
5
10
500
1.75
3.5
1.75
kHz
V
V
V
90
%
%
0
2.5
0.8
75
25
3
V
V
ns
ns
2.2
100
100
TEMPERATURE RANGE
–55°C to +125°C
–40°C to +85°C
PACKAGE
CDIP
SOIC-Wide
PDIP
SOIC-Wide
PDIP
UC1584J
UC2584DW
UC2584N
UC3584DW
UC3584N
0°C to +70°C
ORDERING INFORMATION
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