参数资料
型号: NCP4326DR2G
厂商: ON Semiconductor
文件页数: 25/29页
文件大小: 0K
描述: IC SECONDARY CTLR SW PS 16-SOIC
产品变化通告: Discontinuation 30/Jun/2006
标准包装: 2,500
应用: 次级控制器,准谐振切换模式电源
输入电压: 15V
输出数: 3
工作温度: 0°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.154",3.90mm 宽)
供应商设备封装: 16-SOIC
包装: 带卷 (TR)
NCP4326
In a startup sequence, the voltage output is null so the error
amplifier output is at its max value, so the duty cycle from
the PWM_reg signal is at 100% duty cycle. The duty cycle
is only limited by the soft ? start feature: the switch ON is
done when the Int_Flux voltage is become lower than the
enable pin voltage and the switch OFF is done when the
Int_Flux is become higher than the enable pin voltage.
The following Figure 48 show a real soft ? start on a typical
application. The limited peak current during the soft ? start
allows selecting smaller mosfet (for example SOT23
package without risk of exceeding the max non repetitive
peak current “IDM”).
Soft start mode
on 1V8 output
Steady state
Normal reg.
Mixed Mode
1V8 output voltage
(0.5V/div)
Output peak current
in the power mosfet
(2A/div)
Figure 48. Startup Sequence with Soft ? Start on 1V8 Output at Full Load
http://onsemi.com
25
相关PDF资料
PDF描述
NCP4330DR2G IC DRIVER POST REGULATION 8-SOIC
NCP4331DR2G IC REG CTRLR BUCK PWM 16-SOIC
NCP4350DR2G IC SUPERVISOR DESKTOP PS 16-SOIC
NCP4523G3T1G IC REG LDO CMOS 3CH FOR RF 8SSOP
NCP4561SN28T1 IC REG LDO 2.8V 80MA 5TSOP
相关代理商/技术参数
参数描述
NCP4328 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Secondary Side CV/CC Controller
NCP4328BSNT1G 制造商:ON Semiconductor 功能描述:REEL / SECONDARY SIDE CONSTANT V
NCP432B 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Programmable Precision References
NCP432BCSNT1G 制造商:ON Semiconductor 功能描述:PROGRAMMABLE PRECISION RE - Tape and Reel 制造商:ON Semiconductor 功能描述:REEL / PROGRAMMABLE PRECISION RE
NCP432BISNT1G 制造商:ON Semiconductor 功能描述:PROGRAMMABLE PRECISION RE - Tape and Reel 制造商:ON Semiconductor 功能描述:REEL / PROGRAMMABLE PRECISION RE