Datasheet

2
UC1825
UC2825
UC3825
CONNECTION DIAGRAMS
DIL-16 (Top View)
J or N Package
SOIC-16 (Top View)
DW Package
PACKAGE PIN FUNCTION
FUNCTION
PIN
N/C 1
INV 2
NI 3
E/A Out 4
Clock 5
N/C 6
R
T 7
C
T 8
Ramp 9
Soft Start 10
N/C 11
ILIM/SD 12
Gnd 13
Out A 14
Pwr Gnd 15
N/C 16
V
C 17
Out B 18
V
CC 19
V
REF 5.1V 20
PLCC-20 & LCC-20
(Top View)
Q & L Packages
ABSOLUTE MAXIMUM RATINGS (Note 1)
Supply Voltage (Pins 13, 15). . . . . . . . . . . . . . . . . . . . . . . . 30V
Output Current, Source or Sink (Pins 11, 14)
DC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5A
Pulse (0.5 s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.0A
Analog Inputs
(Pins 1, 2, 7). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V
(Pin 8, 9) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V
Clock Output Current (Pin 4). . . . . . . . . . . . . . . . . . . . . . . -5mA
Error Amplifier Output Current (Pin 3) . . . . . . . . . . . . . . . . 5mA
Soft Start Sink Current (Pin 8) . . . . . . . . . . . . . . . . . . . . . 20mA
Oscillator Charging Current (Pin 5) . . . . . . . . . . . . . . . . . . -5mA
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1W
Storage Temperature Range. . . . . . . . . . . . . . -65°C to +150°C
Lead Temperature (Soldering, 10 seconds) . . . . . . . . . . 300°C
Package Q
JA
Q
JC
DIL-16J 80-120 28
(2)
DIL-16N 90
(1)
45
PLCC-20 43-75(1) 34
LCC-20 70-80 20
(2)
SOIC-16 50-120
(1)
35
THERMAL RATINGS TABLE
Q
Q