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參數(shù)資料
| 型號(hào)： | Si9139DG-2220 |
| 廠(chǎng)商： | Vishay Intertechnology,Inc. |
| 英文描述： | Multi-Output, Individual On/Off Control Power-Supply Controller |
| 中文描述： | 多輸出，單獨(dú)開(kāi)/關(guān)控制電源控制器 |
| 文件頁(yè)數(shù)： | 12/17頁(yè) |
| 文件大?。?/td> | 162K |
| 代理商： | SI9139DG-2220 |
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Si9139
Vishay Siliconix
New Product
www.vishay.com
12
Document Number: 71841
S-22317
—
Rev. A, 16-Dec-02
TIMING DIAGRAMS
FIGURE 2.
Converter is Enabled Before V
IN
is Applied, A or B controllers
ON
A
or ON
B
V
IN
V
L
V
REF
OSC EN
(Sysmon EN)
OSC
f
max
(SS)
DH
D
L
The converter is enabled
V
IN
is applied
LDO is activated after V
IN
is
applied
REF circuit is activated after V
L
becomes available
After V
goes above 0.8 V,
the converter is turned on
Oscillator is activated
Slow soft-start gradually increases
the maximum inductor current
High-side gate drive duty ratio
gradually increases to maximum
Low-side gate drive
4 ms
0.8 V
t
BBM
ON
A
or ON
B
V
IN
V
L
V
REF
OSC EN
(Sysmon EN)
OSC
f
max
(SS)
DH
DL
The converter is enabled
V
IN
is applied
LDO is activated after V
IN
is
applied
REF circuit is activated after V
L
becomes available
After V
goes above 0.8 V,
the converter is turned on
Oscillator is activated
Slow soft-start gradually increases
the maximum inductor current
0.8 V
4 ms
FIGURE 3.
Converter is Enabled After V
IN
is Applied, A or B Controllers
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| Si9139DG-2520 | Multi-Output, Individual On/Off Control Power-Supply Controller |
| Si9139DG-2522 | Multi-Output, Individual On/Off Control Power-Supply Controller |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SI9139DG-2220-T1 | 制造商:Vishay Siliconix 功能描述:CURRENT MODE PWM CNTRLR 2.2V/2V/1.24V TO 20V 1A 28SSOP - Tape and Reel |
| SI9139DG-2515 | 制造商:VISHAY 制造商全稱(chēng):Vishay Siliconix 功能描述:Multi-Output, Individual On/Off Control Power-Supply Controller |
| SI9139DG-2515-T1 | 制造商:Vishay Siliconix 功能描述:CURRENT MODE PWM CNTRLR 2.5V/1.5V/1.24V TO 20V 1A 28SSOP - Tape and Reel |
| SI9139DG-2518 | 功能描述:電流型 PWM 控制器 Dual Pwr-Supply Ctrl 2.5 and 1.8V RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| SI9139DG-2518-T1 | 功能描述:電流型 PWM 控制器 Dual Pwr-Supply Ctrl 2.5 and 1.8V RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
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