Datasheet

2
UC1525B UC1527B
UC2525B UC2527B
UC3525B UC3527B
DIL-16, SOIC-16 (Top View)
J or N, DW Packages
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, (+VIN) ...........................+40V
Collector Supply Voltage (VC)......................+40V
Logic Inputs ............................–0.3V to +5.5V
Analog Inputs.............................–0.3V to VIN
Output Current, Source or Sink ...................500mA
Reference Output Current ........................50mA
Oscillator Charging Current ........................5mA
Power Dissipation at T
A
= +25°C.................1000mW
Power Dissipation at T
C
= +25°C ................2000mW
Operating Junction Temperature ..........–55°C to +150°C
Storage Temperature Range .............–65°C to +150°C
Lead Temperature (Soldering, 10 sec.) .............+300°C
All currents are positive into, negative out of the specified ter
-
minal. Consult Packaging Section of Databook for thermal limi
-
tations and considerations of packages.
CONNECTION DIAGRAMS
LCC-20, PLCC-20 (Top View)
L, Q Packages
RECOMMENDED OPERATING CONDITIONS
(Note 1)
Input Voltage (+VIN) .......................+8Vto+35V
Collector Supply Voltage (VC) ..............+4.5V to +35V
Sink/Source Load Current (steady state) ........0to100mA
Sink/Source Load Current (peak) ..............0to400mA
Reference Load Current ......................0to20mA
Oscillator Frequency Range..............100Hz to 400kHz
Oscillator Timing Resistor ..................2kΩ to 150kΩ
Oscillator Timing Capacitor ..............0.001µFto0.1µF
Dead Time Resistor Range ...................0Ω to 500Ω
Note 1: Range over which the device is functional and parame
-
ter limits are guaranteed.
ELECTRICAL CHARACTERISTICS:Unless otherwise stated, these specifications apply for T
A
= –55°C to +125°C for the
UC1525B and UC1527B; –40°C to +85°C for the UC2525B and UC2527B; 0°C to +70°C for the UC3525B and UC3527B; +VIN =
20V, T
A
=T
J
.
PARAMETER TEST CONDITIONS
UC1525B/UC2525B
UC1527B/UC2527B
UC3525B
UC3527B
MIN TYP MAX MIN TYP MAX UNITS
Reference Section
Output Voltage T
J
= 25°C 5.062 5.10 5.138 5.036 5.10 5.164 V
Line Regulation VIN = 8V to 35V 5 10 5 10 mV
Load Regulation I
L
= 0mA to 20mA 7 15 7 15 mV
Temperature Stability (Note 2) Over Operating Range 10 50 10 50 mV
Total Output Variation Line, Load, and Temperature 5.036 5.164 5.024 5.176 V
Short Circuit Current VREF = 0, T
J
=25°C 80 100 80 100 mA
Output Noise Voltage (Note 2) 10Hz ≤ f ≤10kHz, T
J
= 25°C 40 200 40 200 µVrms
Long Term Stability (Note 2) T
J
= 125°C, 1000 Hrs. 3 10 3 10 mV