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参数资料
| 型号： | NCP1216AFORWEVB |
| 厂商： | ON Semiconductor |
| 文件页数： | 15/18页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL NCP1216A DC/DC CONV |
| 产品变化通告： | 1Q2012 Discontinuation 30/Mar/2012 |
| 设计资源： | NCP1216AFORWEVB Schematic NCP1216AFORWEVB Bill of Materials NCP1216AFORWEVB Test Procedure NCP1216AFORWEVB Gerber Zip |
| 标准包装： | 1 |
| 系列： | * |
| 其它名称： | NCP1216AFORWEVB-ND NCP1216AFORWEVBOS |
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
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP1216AFORWGEVB | 功能描述:BOARD EVAL NCP1216A 35W RoHS:是 类别:编程器，开发系统 >> 评估板 - LED 驱动器 系列:* 标准包装:1 系列:PowerWise® 电流 - 输出 / 通道:20mA 输出及类型:1，非隔离 输出电压:17V 特点:可调光 输入电压:2.7 ~ 5.5 V 已供物品:板 已用 IC / 零件:LM3508 相关产品:LM3508TLX-ND - IC LED DRVR WHT BCKLGT 9USMDLM3508TLDKR-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLCT-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLTR-ND - IC LED DRVR WHT BCKLGT 9MICROSMD |
| 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 |
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