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UC3526NG4 датащи(PDF) 2 Page - Texas Instruments

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номер детали UC3526NG4
подробное описание детали  Regulating Pulse Width Modulator
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UC3526NG4 датащи(HTML) 2 Page - Texas Instruments

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ABSOLUTE MAXIMUM RATINGS (Note 1, 2)
Input Voltage (+VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +40V
Collector Supply Voltage (+VC) . . . . . . . . . . . . . . . . . . . . . +40V
Logic Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +5.5V
Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +VIN
Source/Sink Load Current (each output) . . . . . . . . . . . . . 200mA
Reference Load Current . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA
Logic Sink Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15mA
Power Dissipation at TA = +25°C (Note 2) . . . . . . . . . . 1000mW
Power Dissipation at TC = +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
Note 1: Values beyond which damage may occur.
Note 2: Consult packaging section of databook for thermal
limitations and considerations of package.
CONNECTION DIAGRAMS
UC1526
UC2526
UC3526
DIL-18, SOIC-18 (TOP VIEW)
J or N Package, DW Package
RECOMMENDED OPERATING CONDITIONS (Note 3)
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +8V 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 400kHz
Oscillator Timing Resistor . . . . . . . . . . . . . . . . . . . 2k
Ω to 150kΩ
Oscillator Timing Capacitor . . . . . . . . . . . . . . . . . . . 1nF to 20
µF
Available Deadtime Range at 40kHz . . . . . . . . . . . . . 3% to 50%
Operating Ambient Temperature Range
UC1526 . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55°C to +125°C
UC2526 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -25°C to +85°C
UC3526 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0°C to +70°C
Note 3: Range over which the device is functional and
parameter limits are guaranteed.
PACKAGE PIN FUNCTION
FUNCTION
PIN
N/C
1
+Error
2
-Error
3
Comp.
4
CSS
5
Reset
______
6
- Current Sense
7
+ Current Sense
8
Shutdown
_________
9
RTIMING
10
CT
11
RD
12
Sync
13
Output A
14
VC
15
N/C
16
Ground
17
Output B
18
+VIN
19
VREF
20
PLCC-20, LCC-20
(TOP VIEW)
Q and L Packages
ELECTRICAL CHARACTERISTICS:
PARAMETER
TEST CONDITIONS
UC1526 / UC2526
UC3526
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
Reference Section (Note 4)
Output Voltage
TJ = + 25°C
4.95
5.00
5.05
4.90
5.00
5.10
V
Line Regulation
+VIN = 8 to 35V
10
20
10
30
mV
Load Regulation
IL = 0 to 20mA
10
30
10
50
mV
Temperature Stability
Over Operating TJ
15
50
15
50
mV
Total Output
Voltage Range
Over Recommended
Operating Conditions
4.90
5.00
5.10
4.85
5.00
5.15
V
Short Circuit Current
VREF = 0V
25
50
100
25
50
100
mA
Under -Voltage Lockout
RESET
_______
Output Voltage
VREF = 3.8V
0.2
0.4
0.2
0.4
V
VREF = 4.8V
2.4
4.8
2.4
4.8
V
Note 4: IL = 0mA.
+VIN = 15V, and over operating ambient temperature, unless otherwise
specified, TA = TJ.
2


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