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参数资料
| 型号： | NCP1216AFORWGEVB |
| 厂商： | ON Semiconductor |
| 文件页数： | 15/18页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL NCP1216A 35W |
| 设计资源： | NCP1216AFORWGEVB Schematic NCP1216AFORWGEVB Gerber Files NCP1216AFORWGEVB Bill of Materials |
| 标准包装： | 1 |
| 系列： | * |
NCP1216, NCP1216A
+
C bulk
R bulk
> 4.7 k
+
C bulk
1
2
3
8
7
6
1
2
3
8
7
6
D3
1N4007
4
5
+
CV CC
4
5
+
CV CC
Figure 27.
A simple resistor in series avoids any latchup in the controller
or one diode forces V CC to reach V CCON sooner.
Figure 28.
Soft ? Start ? NCP1216A only
The NCP1216A features an internal 1.0 ms soft ? start
activated during the power on sequence (PON). As soon as
V CC reaches V CCOFF , the peak current is gradually
increased from nearly zero up to the maximum clamping
level (e.g. 1.0 V). This situation lasts during 1ms and further
to that time period, the peak current limit is blocked to
activated during the over current burst (OCP) sequence.
Every restart attempt is followed by a soft ? start activation.
Generally speaking, the soft ? start will be activated when
V CC ramps up either from zero (fresh power ? on sequence)
or 5.6 V, the latchoff voltage occurring during OCP.
Figure 29 portrays the soft ? start behavior. The time scales
are purposely shifted to offer a better zoom portion.
1.0 V until the supply enters regulation. The soft ? start is also
Figure 29. Soft ? start is activated during a startup sequence or an OCP condition
http://onsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP1216AP100 | 功能描述:开关变换器、稳压器与控制器 Current Mode PWM 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 |
| NCP1216AP100G | 功能描述:电流型 PWM 控制器 Current Mode PWM w/50% Duty Cycle Max RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| NCP1216AP133 | 功能描述:电流型 PWM 控制器 Current Mode PWM RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| NCP1216AP133G | 功能描述:电流型 PWM 控制器 Current Mode PWM w/50% Duty Cycle Max RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| NCP1216AP65 | 功能描述:电流型 PWM 控制器 Current Mode PWM RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
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