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參數(shù)資料
| 型號： | Si9139DG-2815 |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | Multi-Output, Individual On/Off Control Power-Supply Controller |
| 中文描述： | 多輸出，單獨開/關控制電源控制器 |
| 文件頁數(shù)： | 12/17頁 |
| 文件大?。?/td> | 162K |
| 代理商： | SI9139DG-2815 |
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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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SI9139DG-2815-T1 | 制造商:Vishay Siliconix 功能描述:CURRENT MODE PWM CNTRLR 2.8V/1.5V/1.24V TO 20V 1A 28SSOP - Tape and Reel |
| SI9139DG-2818 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Multi-Output, Individual On/Off Control Power-Supply Controller |
| SI9139DG-2818-T1 | 制造商:Vishay Siliconix 功能描述:CURRENT MODE PWM CNTRLR 2.8V/1.8V/1.24V TO 20V 1A 28SSOP - Tape and Reel |
| SI9139DG-2820 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Multi-Output, Individual On/Off Control Power-Supply Controller |
| SI9139DG-2820-T1 | 制造商:Vishay Siliconix 功能描述:CURRENT MODE PWM CNTRLR 2.8V/2V/1.24V TO 20V 1A 28SSOP - Tape and Reel |
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