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UC1848 датащи(PDF) 4 Page - Texas Instruments

номер детали UC1848
подробное описание детали  Average Current Mode PWM Controller
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производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI - Texas Instruments

UC1848 датащи(HTML) 4 Page - Texas Instruments

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UC1848
UC2848
UC3848
Figure 1: Under voltage lockout.
UDG-93004
Figure 2: Oscillator frequency.
10
100
1000
10000
10
100
1000
10000
C (pF)
Oscillator Frequency as a Function of CT
Frequency Decrease as a Function of RT
RT = Open
UDG-93006
UDG-93005
When both the UV and VCC comparators are high, the
internal bias circuitry for the rest of the chip is activated.
The CDC pin (see discussion on Maximum Duty Cycle
Control and Soft Start) and the Output are held low until
VREF exceeds the 4.5V threshold of the VREF com-
parator. When VREF is good, control of the output driver
is transferred to the PWM circuitry and CDC is allowed to
charge.
If any of the three UVLO comparators go low, the UVLO
latch is set, the output is held low, and CDC is dis-
charged. This state will be maintained until all three com-
parators are high and the CDC pin is fully discharged.
APPLICATION INFORMATION (cont.)


Аналогичный номер детали - UC1848

производительномер деталидатащиподробное описание детали
logo
Texas Instruments
UC1848 TI-UC1848 Datasheet
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[Old version datasheet]   Average Current Mode PWM Controller
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Аналогичное описание - UC1848

производительномер деталидатащиподробное описание детали
logo
Texas Instruments
UC3848N TI-UC3848N Datasheet
1,002Kb / 17P
[Old version datasheet]   Average Current Mode PWM Controller
UC1848 TI1-UC1848_14 Datasheet
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[Old version datasheet]   Average Current Mode PWM Controller
UC3886N TI1-UC3886N Datasheet
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[Old version datasheet]   Average Current Mode PWM Controller IC
UC1886 TI-UC1886 Datasheet
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UC2886 TI1-UC2886_14 Datasheet
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[Old version datasheet]   Average Current Mode PWM Controller IC
UCC1839 TI-UCC1839 Datasheet
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[Old version datasheet]   Secondary Side Average Current Mode Controller
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[Old version datasheet]   Secondary Side Average Current Mode Controller
UC1849 TI-UC1849 Datasheet
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UC1826 TI-UC1826 Datasheet
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[Old version datasheet]   Secondary Side Average Current Mode Controller
UC2849DW TI-UC2849DW Datasheet
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[Old version datasheet]   SECONDARY SIDE AVERAGE CURRENT MODE CONTROLLER
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