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UC1825A-SP датащи(PDF) 11 Page - Texas Instruments

номер детали UC1825A-SP
подробное описание детали  Class-V, Radiation Hardened High-Speed PWM Controller
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производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI1 - Texas Instruments

UC1825A-SP датащи(HTML) 11 Page - Texas Instruments

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UDG-95111
39
50-
External
Clock
10
6
5
R
T
R
T
C
T
V
SYNC
UDG-95110
CT
1.25 V
CT
from E/A
Oscillator
Voltage Mode
Current Mode
RAMP
CT
7
6
1.25 V
R
SENSE
I
SWITCH
from E/A
Oscillator
RAMP
CT
7
6
11
UC1825A-SP
www.ti.com
SLUS873C – JANUARY 2009 – REVISED DECEMBER 2016
Product Folder Links: UC1825A-SP
Submit Documentation Feedback
Copyright © 2009–2016, Texas Instruments Incorporated
Feature Description (continued)
8.3.4 Control Methods
Figure 7 shows the control methods.
Figure 7. Control Methods
8.3.5 Synchronization
The oscillator can be synchronized by an external pulse inserted in series with the timing capacitor (see
Figure 8). Program the free running frequency of the oscillator to be 10% to 15% slower than the desired
synchronous frequency. The pulse width must be greater than 10 ns and less than half the discharge time of the
oscillator. Figure 9 shows how to synchronize two ICs, with one as master and one as slave. Figure 10 shows
the waveforms in a master and slave configuration.
NOTE
The CLK/LEB pin no longer accepts an incoming synchronizing signal.
Figure 8. General Oscillator Synchronization


Аналогичный номер детали - UC1825A-SP_16

производительномер деталидатащиподробное описание детали
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Texas Instruments
UC1825A-SP TI1-UC1825A-SP_15 Datasheet
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Аналогичное описание - UC1825A-SP_16

производительномер деталидатащиподробное описание детали
logo
Texas Instruments
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Intersil Corporation
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