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参数资料
| 型号： | NCP1217D100R2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 11/19页 |
| 文件大小： | 0K |
| 描述： | IC CTLR PWM CM OVP HV 8SOIC |
| 标准包装： | 1 |
| 输出隔离： | 隔离 |
| 频率范围： | 90kHz ~ 110kHz |
| 输入电压： | 8.3 V ~ 16 V |
| 工作温度： | 0°C ~ 125°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 剪切带 (CT) |
| 其它名称： | NCP1217D100R2GOSCT |
NCP1217, NCP1217A
Power P1
Power P2
Power P3
Figure 20. Output Pulses at Various Power Levels (X = 5.0 m s/div) P1 < P2 < P3
300 M
200 M
100 M
0
MAX PEAK
CURRENT
SKIP CYCLE
CURRENT LIMIT
315.40 U
882.70 U
1.450 M
2.017 M
2.585 M
Figure 21. The Skip Cycle Takes Place at Low Peak Currents which Guarantees Noise--Free Operation
Sufficient margin shall be kept between normal Pin1 level and the latchoff point in order to avoid false triggering.
Ramp Compensation
Ramp compensation is a known mean to cure
subharmonic oscillations. These oscillations take place at
half the switching frequency and occur only during
Continuous Conduction Mode (CCM) with a duty--cycle
greater than 50%. To lower the current loop gain, one usually
injects between 50 and 100% of the inductor down--slope.
Figure 22 depicts how internally the ramp is generated.
http://onsemi.com
11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP1217D100R2G | 制造商:ON Semiconductor 功能描述:Pulse Width Modulation (PWM) Controller |
| NCP1217D133R2 | 功能描述:电流型 PWM 控制器 Enhanced Current 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 |
| NCP1217D133R2G | 功能描述:电流型 PWM 控制器 Enhanced 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 |
| NCP1217D133R2G-CUT TAPE | 制造商:ON 功能描述:NCP1217 Series 16 V 146 kHz Enhanced PWM Current-Mode Controller - SOIC-8 |
| NCP1217D65 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Enhanced PWM Current--Mode Controller for High--Power Universal Off--Line Supplies |
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