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參數(shù)資料
| 型號(hào)： | MB3785APFV |
| 廠商： | FUJITSU LTD |
| 元件分類(lèi)： | 穩(wěn)壓器 |
| 英文描述： | Switching Regulator Controller (4 Channels plus High-Precision, High-Frequency Capabilities) |
| 中文描述： | 0.03 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQFP48 |
| 封裝： | PLASTIC, LQFP-48 |
| 文件頁(yè)數(shù)： | 19/29頁(yè) |
| 文件大小： | 293K |
| 代理商： | MB3785APFV |
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19
MB3785A
I
METHOD OF SETTING THE TRIANGULAR-WAVE OSCILLATOR CIRCUIT
1.
When Not Using Ceramic Resonator
Connect the OSC
IN
terminal (pin 14) to GND and leave the OSC
OUT
terminal (pin 15) open. This makes it possible
to set the oscillation frequency with only C
T
and R
T
.
2.
By connecting a ceramic resonator between OSC
IN
and OSC
OUT
as shown below, you can set the oscillation
frequency. In this case, too, C
T
and R
T
are required. Determine the values of C
T
and R
T
so that the oscillation
frequency of this RC network is about 5-10% lower than that of the ceramic resonator.
When Using Ceramic Resonator
Figure 7. When Not Using Ceramic Resonator
14
15
16
17
OSC
IN
R
T
C
T
OSC
OUT
R
T
C
T
Open
Figure 8. When Using Ceramic Resonator
14
15
16
17
OSC
IN
R
T
C
T
OSC
OUT
R
T
C
T
C
2
C
1
Ceramic resonator
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB3785APFV-G-BND(E1) | 制造商:Fujitsu 功能描述: |
| MB3788 | 制造商:FUJITSU 制造商全稱(chēng):Fujitsu Component Limited. 功能描述:SWITCHING REGULATOR CONTROLLER |
| MB3789 | 制造商:FUJITSU 制造商全稱(chēng):Fujitsu Component Limited. 功能描述:Switching Regulator Controller (Supporting External Synchronization) |
| MB3789PFV | 制造商:FUJITSU 制造商全稱(chēng):Fujitsu Component Limited. 功能描述:Switching Regulator Controller (Supporting External Synchronization) |
| MB3789PFV-G-BND(E1) | 制造商:Fujitsu 功能描述: |
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