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参数资料
| 型号： | NCP5222GEVB |
| 厂商： | ON Semiconductor |
| 文件页数： | 16/28页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL NCP5222 SYNC BUCK |
| 设计资源： | NCP5222GEVB Schematic NCP5222GEVB Test Procedure NCP5222GEVB Bill of Materials NCP5222GEVB Gerber Zip |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 2，非隔离 |
| 输出电压： | 1.05V，1.05V |
| 电流 - 输出： | 18A，18A |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 300kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | NCP5222 |
| 其它名称： | NCP5222GEVB-ND-ND NCP5222GEVBOSOS |
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NCP5222
turned off. The fault remains set until the system has
shutdown and re ? applied V CC and/or the enable signal EN
has toggled states.
Thermal Protection
The NCP5222 has a thermal shutdown protection to
protect the device itself from overheating when the die
temperature exceeds 150 ° C. After the thermal protection is
triggered, the fault state can be ended by re ? applying V CC
or EN when the die temperature drops down below 125 ° C.
Layout Guidelines
Figures 11 and 12 show exemplary layout of the power
stage components for dual ? channel configuration and
two ? phase configuration, respectively.
In the two ? phase mode, after the sharing switch is turned
on, the voltage difference across the sharing ? switch will
power delivery between the two phases. The smaller R DS(on)
of the sharing switch (R on_ssh ), the better the current balance
and the smaller output voltage deviation in V O2 . Actually,
the current through the sharing switch can be calculated by
I ssh = (V O2 ? V O1 ) / R on_effective , in which R on_effective =
R on_ssh + R pcb , and R pcb is the copper resistance between the
two output sensing points. So that too large R pcb effectively
wastes R DS(on) of the sharing switch, and thus reduces the
power sharing capability and enlarges V O2 deviation.
In a real application, to make sure the CH1 has perfect
voltage regulation, the V O1 sensing point and AGND can be
designed like remote sensing. In the meantime, to fully use
the sharing switch for the current sharing operation and
reduce V O2 deviation, the distance between the two sensing
points V O1 and V O2 should be arranged to be as close as
possible.
cause a current flow through it, which is used to balance
Figure 11. Layout Guidelines in Dual ? Channel Mode
http://onsemi.com
16
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP5222MNR2G | 功能描述:DC/DC 开关控制器 DUAL SYN BUCK CONTROLLER RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| NCP5228 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Synchronous Buck Controller with Auto Power Saving |
| NCP5228MNTWG | 制造商:ON Semiconductor 功能描述:Notebook DDR Controller |
| NCP5230 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Precise Low Voltage Synchronous Buck |
| NCP5230MNTWG | 功能描述:DC/DC 开关控制器 BUCK CONTROLLER RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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