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UC1527BN Scheda tecnica(PDF) 2 Page - Texas Instruments

Il numero della parte UC1527BN
Spiegazioni elettronici  Regulating Pulse Width Modulators
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UC1527BN Scheda tecnica(HTML) 2 Page - Texas Instruments

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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 TA = +25°C................. 1000mW
Power Dissipation at TC = +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) .......................+8V to +35V
Collector Supply Voltage (VC) .............. +4.5V to +35V
Sink/Source Load Current (steady state) ........0to 100mA
Sink/Source Load Current (peak) ..............0to 400mA
Reference Load Current ......................0to 20mA
Oscillator Frequency Range .............. 100Hz to 400kHz
Oscillator Timing Resistor ..................2k
Ω to 150kΩ
Oscillator Timing Capacitor .............. 0.001
µFto0.1µF
Dead Time Resistor Range ...................0
Ω 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 TA = –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, TA =TJ.
PARAMETER
TEST CONDITIONS
UC1525B/UC2525B
UC1527B/UC2527B
UC3525B
UC3527B
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
Reference Section
Output Voltage
TJ = 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
IL = 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, TJ =25°C
80
100
80
100
mA
Output Noise Voltage (Note 2)
10Hz
≤ f ≤10kHz, TJ = 25°C
40
200
40
200
µVrms
Long Term Stability (Note 2)
TJ = 125°C, 1000 Hrs.
3
10
3
10
mV


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