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參數(shù)資料
| 型號(hào)： | BP5221X |
| 英文描述： | レギュレータLSI |
| 中文描述： | レギュレータ大規(guī)模集成電路 |
| 文件頁(yè)數(shù)： | 5/8頁(yè) |
| 文件大?。?/td> | 97K |
| 代理商： | BP5221X |
BP5220 / BP5221 / BP5222 /
BP5220X / BP5221X / BP5222X
Application example 3 : Output voltage fine adjustment
(1) When reducing the output voltage
VR value setting equations(The output voltage after adjustment is denoted Vo.)
(1) When reducing the output voltage
BP5220 / BP5221, BP5220X / BP5221X
BP5222, BP5222X
R=(Vo
1.281) / (0.1196
0.01Vo) (k
)
(2) When increasing the output voltage
BP5220 / BP5221, BP5220X / BP5221X
BP5222, BP5222X
R=1200 / (9.368Vo
112) (k
)
To make full use of the ability of the the module products, we recommended the output voltage be
adjusted within
±
20% of the output voltage rating. When the output voltage is increased by 20%, for
instance, the minimum input voltage is also increased by 20%.
(Example : When the output voltage is changed from 5V to 6V in the BP5220, the minimum input voltage
is changed from 8V to 9.6V)
R=(V
O
1.281) / (0.0278
0.00556V
O
) (k
)
R=11160 / (48.4Vo
242) (k
)
(2) When increasing the output voltage
100
μ
F
V
IN
9
7
6
5
4
3
2
1
470
μ
F
VR
BP5220X / BP5221X / BP5222X
BP5220 / BP5221 / BP5222
V
O
+
+
Fig.7
100
μ
F
V
IN
9
7
6
5
4
3
2
1
470
μ
F
VR
V
O
BP5220X / BP5221X / BP5222X
BP5220 / BP5221 / BP5222
+
+
Fig.8
9
7
6
5
4
3
2
1
100
μ
F
V
O
470
μ
F
1
C1
10
μ
F
V
IN
24V
470k
BP5220X / BP5221X / BP5222X
BP5220 / BP5221 / BP5222
2SC1740R
+
+
+
Fig.9
Application example 4 : Slow start
The slow start circuit mitigates the pulse load on the internal switching transistor when input voltage is applied,
and rises the output voltage gradually by starting the switching operation slowly.
This application is useful for preventing the malfunction of an external protection circuit due to a rush current,
and can serve as a countermeasure against the operation outside the safe operation range.
C1 is a slow-start capacitor for mitigating the over rush current that flows into the modules when the switch is
turned on.
5/8
Be sure to use
fuse for safety
Be sure to use
fuse for safety
Be sure to use
fuse for safety
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| BP5222 | Analog IC |
| BP5222X | Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode |
| BP5220X | レギュレータLSI |
| BP5221 | Analog IC |
| BP5710 | レギュレータLSI |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BP5222 | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:Analog IC |
| BP5222A | 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 HIC REGULATOR DC-DC 12V 500mA RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| BP5222X | 制造商:ROHM 制造商全稱(chēng):Rohm 功能描述:DC / DC CONVERTER |
| BP5223 | 功能描述:電壓監(jiān)測(cè)器/監(jiān)控器 DOWN DC/DC 5V RoHS:否 制造商:Texas Instruments 監(jiān)測(cè)電壓數(shù):2 監(jiān)測(cè)電壓:Adjustable 輸出類(lèi)型:Open Drain 欠電壓閾值: 過(guò)電壓閾值: 準(zhǔn)確性:1 % 工作電源電壓:1.5 V to 6.5 V 工作電源電流:1.8 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SON-6 安裝風(fēng)格:SMD/SMT |
| BP5223_10 | 制造商:ROHM 制造商全稱(chēng):Rohm 功能描述:Step-down DC/DC Converter(Non-isolated) |
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