参数资料
| 型号： | NCV898031D1R2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 11/15页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM CM 8SOIC |
| 标准包装： | 2,500 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 2.2MHz |
| 占空比： | 90% |
| 电源电压： | 3.2 V ~ 40 V |
| 降压： | 无 |
| 升压： | 是 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 150°C |
| 封装/外壳： | * |
| 包装： | * |
NCV898031
Q g(total) v
The total feedback resistance (R upper + R lower ) should be
in the range of 1 k W – 100 k W .
Select Compensator Components
Current Mode control method employed by the
NCV898031 allows the use of a simple, Type II
compensation to optimize the dynamic response according
to system requirements.
The maximum RMS Current can be calculated as follows:
Select MOSFET(s)
In order to ensure the gate drive voltage does not drop out
the MOSFET(s) chosen must not violate the following
inequality:
I drv
f s
Where: Q g(total) : Total Gate Charge of MOSFET(s) [C]
I drv : Drive voltage current [A]
f s : Switching Frequency [Hz]
I D(max) +
D WC
I Q(peak) 2 )
D I L1 ) D I L2
3
2
* I Q(peak) D I L1 ) D I L2
where
I Q(peak) + I L1_peak ) I L2_peak
The maximum voltage across the MOSFET will be the
maximum output voltage, which is the higher of the
maximum input voltage and the regulated output voltaged:
V Q(max) + V OUT(max) ) V IN(max)
Select Diode
The output diode rectifies the output current. The average
current through diode will be equal to the output current:
I D(avg) + I OUT(max)
Additionally, the diode must block voltage equal to the
higher of the output voltage and the maximum input voltage:
V D(max) + V OUT(max) ) V IN(max)
The maximum power dissipation in the diode can be
calculated as follows:
P D + V f (max) I OUT(max)
Where: P d : Power dissipation in the diode [W]
V f(max) : Maximum forward voltage of the diode [V]
http://onsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCV898031SEPGEVB | 制造商:ON Semiconductor 功能描述:NCV898031 SEPIC EVAL BD - Bulk 制造商:ON Semiconductor 功能描述:BOARD EVAL FOR NCV898031 |
| NCVT-1 | 制造商:KLEIN TOOLS 功能描述:NON-CONTACT VOLTAGE TESTER W/BATT, 50-1000V 制造商:Klein Tools Inc 功能描述:Testing Equipment Non-Contact Voltage Testers |
| NCVT-1SEN | 制造商:Klein Tools Inc 功能描述:Non-Contact Voltage Tester 制造商:KLIEN TOOLS 功能描述:NON-CONTACT VOLTAGE TESTER 50-1000 VOLTS 制造商:KLIEN TOOLS 功能描述:Non-Contact Voltage Tester - w/ Batteries, 50-1000 Volts, Clip-Strip |
| NCVT-2 | 制造商:KLEIN TOOLS 功能描述:DUAL RANGE NON-CONTACT VOLTAGE TESTER- W/BATTERIES 12-1000 V |
| NCVT-3 | 功能描述:NON-CONTACT VOLTAGE TESTER WITH 制造商:klein tools, inc. 系列:- 零件状态:在售 类型:电压检测器 规格:测量交流电压 12 ~ 1000VAC 等级:CAT IV 1000V 标准包装:6 |
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