Datasheet

RECOMMENDED OPERATING CONDITIONS
(Note 3)
Input Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7V to +35V
Collector Supply Voltage . . . . . . . . . . . . . . . . . . +4.5V to +35V
Sink/Source Load Current (each output) . . . . . . . . 0 to 100mA
Reference Load Current . . . . . . . . . . . . . . . . . . . . . . 0 to 20mA
Oscillator Frequency Range . . . . . . . . . . . . . . . . 1Hz to 600kHz
Oscillator Timing Resistor. . . . . . . . . . . . . . . . . . . 2kΩ to 150kΩ
Oscillator Timing Capacitor. . . . . . . . . . . . . . . . . 400pF to 20µF
Available Deadtime Range at 40kHz . . . . . . . . . . . . 1% to 50%
Operating Ambient Temperature Range
UC1526A. . . . . . . . . . . . . . . . . . . . . . . . . . . . -55°C to +125°C
UC2526A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . -25°C to +85°C
UC3526A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C
ABSOLUTE MAXIMUM RATINGS (Note 1, 2)
Input Voltage (+VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +40V
Collector Supply Voltage (+V
C) . . . . . . . . . . . . . . . . . . . . . +40V
Logic Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +5.5V
Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +V
IN
Source/Sink Load Current (each output) . . . . . . . . . . . . 200mA
Reference Load Current. . . . . . . . . . . . . . . . . . . . . . . . . . 50mA
Logic Sink Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15mA
Power Dissipation at T
A = +25°C (Note 2) . . . . . . . . . 1000mW
Power Dissipation at T
C = +25°C (Note 2). . . . . . . . . . 3000mW
Operating Junction Temperature . . . . . . . . . . . . . . . . . . +150°C
Storage Temperature Range . . . . . . . . . . . . . . -65°C to +150°C
Lead Temperature (soldering, 10 seconds) . . . . . . . . . . +300°C
CONNECTION DIAGRAMS
PACKAGE PIN FUNCTION
FUNCTION PIN
N/C 1
+ERROR 2
-ERROR 3
COMP. 4
C
SS 5
RESET 6
- CURRENT SENSE 7
+ CURRENT SENSE 8
SHUTDOWN 9
R
TIMING 10
C
T 11
R
D 12
SYNC 13
OUTPUT A 14
V
C 15
N/C 16
GROUND 17
OUTPUT B 18
+V
IN 19
V
REF 20
PLCC-20, LCC-20
(TOP VIEW)
Q and L Packages
DIL-18, SOIC-18 (TOP VIEW)
J or N Package, DW Package
Note 1: Values beyond which damage may occur.
Note 2: Consult packaging Section of Databook for thermal
limitations and considerations of package.
Note 3: Range over which the device is functional and
parameter limits are guaranteed.
UC1526A
UC2526A
UC3526A
2