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参数资料
| 型号： | BP5221A |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 5/8页 |
| 文件大小： | 0K |
| 描述： | CONVERTER DC/DC 5V OUT .5A 9-SIP |
| 标准包装： | 150 |
| 系列： | BP5221 |
| 类型： | 非隔离（POL） |
| 输出数： | 1 |
| 电压 - 输入（最小）： | 8V |
| 电压 - 输入（最大）： | 38V |
| Voltage - Output 1： | 5V |
| 电流 - 输出（最大）： | 500mA |
| 电源（瓦） - 制造商系列： | 2W |
| 安装类型： | 通孔 |
| 封装/外壳： | 9-SIP 模块（8 引线） |
| 尺寸/尺寸： | 1.10" L x 0.47" W x 0.77" H（28.0mm x 12.0mm x 19.5mm） |
| 包装： | 散装 |
| 工作温度： | -20°C ~ 70°C |
| 效率： | 84% |
| 电源（瓦特）- 最大： | 2.5W |
| 产品目录页面： | 1376 (CN2011-ZH PDF) |
BP5220A/BP5221A/BP5222A
Application Example 3 : Output voltage adjustment
(1) When reducing the output voltage
BP5220A / BP5221A / BP5222A
(2) When increasing the output voltage
BP5220A / BP5221A / BP5222A
Data Sheet
9
7
6
5
4
3
2
1
9
7
6
5
4
3
2
1
Vi
V O
Vi
V O
+
Be sure to use
fuse for safety.
+
100 F
+
Be sure to use
fuse for safety.
VR
+
470 F
VR
Fig.7
Fig.8
VR value setting equations (The output voltage after adjustment is denoted by Vo.)
(1) When reducing the output voltage
BP5220A / BP5221A
BP5222A
(2) When increasing the output voltage
BP5220A / BP5221A
BP5222A
To maximize performance 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 BP5220A, the minimum input voltage
is charged from 8V to 9.6V)
Application Example 4 : Slow start
The slow start circuit mitigates the pulse load on the internal switching transistor when input voltage is applied,
and increases the output voltage gradually by starting the switching operation slowly.
This application is useful for preventing malfunction of an external protection circuit due to rush current,
and can serve as a countermeasure against operation outside the safe operation range.
BP5220A / BP5221A / BP5222A
9
7
6
5
4
3
2
1
Vi
24V
+
100 F
Be sure to use
fuse for safety.
+
470 F
V O
470k
2SC1740R
+
C1
10 F
Fig.9
C1 is a slow-start capacitor for mitigating excessive rush current that flows into the module when the switch is
turned on.
www.rohm.com
? 2011 ROHM Co., Ltd. All rights reserved.
5/7
2011.10 - Rev. C
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相关代理商/技术参数 |
参数描述 |
|---|---|
| BP5221X | 制造商:ROHM 制造商全称:Rohm 功能描述:DC / DC CONVERTER |
| BP5222 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| BP5222A | 功能描述:开关变换器、稳压器与控制器 HIC REGULATOR DC-DC 12V 500mA RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| BP5222X | 制造商:ROHM 制造商全称:Rohm 功能描述:DC / DC CONVERTER |
| BP5223 | 功能描述:电压监测器/监控器 DOWN DC/DC 5V RoHS:否 制造商:Texas Instruments 监测电压数:2 监测电压:Adjustable 输出类型:Open Drain 欠电压阈值: 过电压阈值: 准确性:1 % 工作电源电压:1.5 V to 6.5 V 工作电源电流:1.8 uA 最大工作温度:+ 125 C 封装 / 箱体:SON-6 安装风格:SMD/SMT |
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