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參數(shù)資料
| 型號： | PWM5031-001-2S |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CDSO24 |
| 封裝： | 0.600 X 0.300 INCH, 0.130 INCH HEIGHT, HERMETIC SEALED, CERAMIC PACKAGE-24 |
| 文件頁數(shù)： | 19/19頁 |
| 文件大?。?/td> | 224K |
| 代理商： | PWM5031-001-2S |
9
SCD5031 Rev P 4/22/10
Aeroflex Plainview
DEAD TIME
The amount of dead time determines the maximum duty cycle that can be achieved. The Dead Time and the frequency of
operation will determine the duty cycle.
SELECTING RSET AND CSET
To select values for RSET and CSET perform the following steps to insure the smallest Dead Time..
1) Determine what frequency is required for your design.
2) Use Figure 4 to select a capacitor value for Cset that will provide the highest duty cycle (shortest Dead Time) at
the frequency required.
3) Calculate the value of Rset using the formula:
Note small values of Rset increase power consumption for the PWM5032 and small values of Cset may make PCB and
stray capacitance a source of error.
Dead Time
5250 C
set
12pF
+
=
Duty Cycle
1
Dead Time
1 F
osc
-----------------------------
–
=
1
RSET =
.7 x FOSC x (CSET + 16PF)
FIGURE 4 – Duty Cycle vs Frequency
86.00%
88.00%
90.00%
92.00%
94.00%
96.00%
98.00%
100.00%
10.00
100.00
1000.00
Frequency Khz
Duty Cycle
390pF
200pF
100pF
47pF
20pF 10pF
相關PDF資料 |
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| PWM5032-001-1S | 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CDSO24 |
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| PWM5031-001-1S | 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CDSO24 |
| PWM5032-7 | 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CDSO24 |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PWM5031-7 | 制造商:AEROFLEX 制造商全稱:AEROFLEX 功能描述:RadHard High Speed PWM Controller |
| PWM5031-I | 制造商:AEROFLEX 制造商全稱:AEROFLEX 功能描述:RadHard High Speed PWM Controller |
| PWM5031-S | 制造商:AEROFLEX 制造商全稱:AEROFLEX 功能描述:RadHard High Speed PWM Controller |
| PWM505 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| PWM-50-59 | 制造商:Brady Corporation 功能描述:REFILL PAGES - LEGEND: 50-59 |
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