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UC1525AL Datasheet(PDF) 7 Page - Texas Instruments

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No. de Pieza. UC1525AL
Descripción  REGULATING PULSE WIDTH MODULATORS
Descarga  17 Pages
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Fabricante  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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UC1525AL Datasheet(HTML) 7 Page - Texas Instruments

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+15 V
13
11
14
12
D1
D2
Return
30 W
30 W
Q2
Q1
T1
D1, D2: UC3611
+VC
A
B
UC1525A
GND
Source = VO − VOH
Sink = VOL
VIN = 20 V,
TA = 25°C
4
3
2
1
0
0.1
.1
.2
1
Output Current, Source or Sink − A
13
11
14
12
Q2
Q1
+VC
A
B
UC1525A
GND
+VSUPPLY
Return
R1
C1
R2
C2
R3
T1
UC1525A, UC1527A
UC2525A, UC2527A
UC3525A, UC3527A
SLUS191C – FEBRUARY 1997 – REVISED JANUARY 2008
PRINCIPLES OF OPERATION AND TYPICAL CHARACTERISTICS (continued)
Figure 3. Output Drivers With Low Source Impedance
The low source impedance of the output drivers provides rapid charging of power FET input capacitance while
minimizing external components.
Figure 4. UC1525A Output Saturation Characteristics.
Figure 5. Conventional Push-Pull Bipolar Design
In conventional push-pull bipolar designs, forward base drive is controlled by R1–R3. Rapid turn-off times for the
power devices are achieved with speed-up capacitors C1 and C2.
Copyright © 1997–2008, Texas Instruments Incorporated
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7
Product Folder Link(s): UC1525A, UC1527A UC2525A, UC2527A UC3525A, UC3527A


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