- 您现在的位置：买卖IC网 > PDF目录20446 > NCP1271ADAPGEVB (ON Semiconductor)EVAL BOARD FOR NCP1271ADAPG PDF资料下载
参数资料
| 型号： | NCP1271ADAPGEVB |
| 厂商： | ON Semiconductor |
| 文件页数： | 17/21页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR NCP1271ADAPG |
| 设计资源： | NCP1271 Adapter EVB BOM NCP1271ADAPGEVB Gerber Files NCP1271EVB Schematic |
| 标准包装： | 1 |
| 主要目的： | AC/DC，主面 |
| 输出及类型： | 1，隔离 |
| 输出电压： | 19V |
| 电流 - 输出： | 3A |
| 输入电压： | 85 ~ 265VAC |
| 稳压器拓扑结构： | 回扫 |
| 频率 - 开关： | 65kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | NCP1271 |
| 其它名称： | NCP1271ADAPGEVBOS |
NCP1271
V FB
Fault operation when staying
in this region longer than 130 ms
time of 30 ns and 20 ns with a 1.0 nF load. This allows the
NCP1271 to drive a high ? current power MOSFET directly
for medium ? high power application.
3V
PWM operation
Noise Decoupling Capacitors
There are three pins in the NCP1271 that may need
external decoupling capacitors.
V skip
0V
Non ? latched shutdown
1. Skip/Latch Pin (Pin 1) – If the voltage on
this pin is above 8.0 V, then the circuit enters
latchoff. Hence, a decoupling capacitor on this
Figure 40. NCP1271 Operation Threshold
pin is essential for improved noise immunity.
Additionally, a resistor should always be placed
from this pin to GND to prevent noise from
1
2
8
causing the pin 1 level to exceed the latchoff
level.
OFF
3
4
6
5
2. Feedback Pin (Pin 2) – The FB pin is a high
impedance point and is very easily polluted in a
opto
coupler
Figure 41. Non ? Latchoff Shutdown
NCP1271
noisy environment. This could effect the circuit
operation.
3. V CC Pin (Pin 6) – The circuit maintains normal
operation when V CC is above V CC(off) (9.1 V
typical). But, if V CC drops below V CC(off) because
of switching noise, then the circuit can incorrectly
Output Drive
The output stage of the device is designed to directly
drive a power MOSFET. It is capable of up to +500 mA and
? 800 mA peak drive currents and has a typical rise and fall
http://onsemi.com
17
recognize it as a fault condition. Hence, it is
important to locate the V CC capacitor or an
additional decoupling capacitor as close as possible
to the device.
相关PDF资料 |
PDF描述 |
|---|---|
| R0.25S-1209 | CONV DC/DC 0.25W 12V IN 9V OUT |
| R0.25S-1205 | CONV DC/DC 0.25W 12V IN 5V OUT |
| 346-070-541-204 | CARDEDGE 70POS DUAL .125 GREEN |
| NCP1034BCK5VGEVB | BOARD EVAL 48/5V 5A PWR SUPPLY |
| R0.25S-053.3 | CONV DC/DC 0.25W 5V IN 3.3V OUT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP1271ADAPGEVB | 制造商:ON Semiconductor 功能描述:57 W Adapter Eval. Board |
| NCP1271D100R2G | 功能描述:电流型 PWM 控制器 ANA PMW CONTROLLER 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 |
| NCP1271D100R2GH | 制造商:Rochester Electronics LLC 功能描述: 制造商:ON Semiconductor 功能描述: |
| NCP1271D65R2G | 功能描述:电流型 PWM 控制器 ANA PMW CONTROLLER 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 |
| NCP1271D65R2GH | 制造商:Rochester Electronics LLC 功能描述: 制造商:ON Semiconductor 功能描述: |
发布紧急采购，3分钟左右您将得到回复。