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參數(shù)資料
| 型號： | PWM5032-001-2S |
| 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)： | 18/19頁 |
| 文件大?。?/td> | 224K |
| 代理商： | PWM5032-001-2S |
8
SCD5031 Rev P 4/22/10
Aeroflex Plainview
OSCILLATOR
The chip uses two precision current mirrors that alternately charge and discharge an external capacitor to generate an
extremely linear sawtooth oscillator waveform. At the start of each cycle, the charging current, set by the choice of
resistor at the Rset pin, is 1:1 mirrored over to the Cset pin where it charges an external capacitor. When the capacitor
voltage reaches the comparator’s upper threshold (nominally VREF), the comparator switches current mirrors and begins
to discharge the external capacitor. The discharge current is set at roughly five times the charging current to result in fast
discharge and minimal Dead Time. When the voltage reaches the comparator’s lower threshold (0.9V), the comparator
switches back to the charging mirror, powers down the discharge mirror, and the whole process repeats.
The frequency is set by choosing Rset and Cset such that:
Suggested Ranges for Cset and Rset are:
50K ohms < Rset < 300K
10pf < Cset < 600pF
Rt
Ct
Rset
Cset
GND
6
7
12
20KHz
F
OSC
1MHz
1
FOCS =
Charge Time + Dead Time
1
=
(.7 x RSET x (CSET + 16PF)) + (5250 x (CSET + 12PF))
FIGURE 3 – Timing Resistance vs Frequency
40
60
80
100
120
140
160
180
200
220
240
260
280
300
320
10
100
1000
Frequency Khz
Rset
390pF
200pF
100pF
47pF
20pF
10pF
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PWM5031-001-2S | 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CDSO24 |
| PWM5032-001-1S | 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CDSO24 |
| PWM5031-S | 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CDSO24 |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| PWM510 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| PWM-6 | 制造商:Brady Corporation 功能描述: |
| PWM-60-12 | 功能描述:O/P +12V5A 制造商:mean well usa inc. 系列:PWM-60 零件狀態(tài):在售 類型:恒定電壓 拓?fù)?AC DC 轉(zhuǎn)換器 輸出數(shù):1 電壓 - 輸入（最小值）:90VAC 電壓 - 輸入（最大值）:305VAC 電壓 - 輸出:12V 電流 - 輸出（最大值）:5A 功率（W）:60W 電壓 - 隔離:3750V 調(diào)光:模擬，PWM 特性:OCP，OTP，OVP，SCP 等級:IP67 工作溫度:-40°C ~ 85°C 效率:86% 端子類型:導(dǎo)線引線 大小/尺寸:5.91" 長 x 2.09" 寬 x 1.38" 高（150.0mm x 53.0mm x 35.0mm） 安裝類型:底座安裝 認(rèn)可:CB，CCC，CE，cURus，ENEC 標(biāo)準(zhǔn)包裝:1 |
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