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參數資料
| 型號： | MC44608 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | Few External Components Reliable Flexible GreenLine Very High Voltage PWM Controller |
| 中文描述： | 很少的外部元件的可靠靈活二七二三六七六七高電壓PWM控制器 |
| 文件頁數： | 10/16頁 |
| 文件大小： | 266K |
| 代理商： | MC44608 |
MC44608
http://onsemi.com
10
EQUATION 7
dBM
1
1
IccS
IG
Istup
kS Stup
kS L
Istup
IccL
Ipin3
EQUATION 8
dBM
1
1
k1
IG
Istup
kS Stup
(kS L
1
Ipin3
Istup
k2
)
where: k1 = Iccs/Istup
k2 = IccL/Istup
kS/Stup = (Vstup–UVLO2)/(Vstup–UVLO1)
kS/L = (UVLO1–UVLO2)/(Vstup–UVLO1)
PULSED MODE CURRENT SENSE CLAMPING LEVEL
Equations 9, 10, 11 and 12 allow the calculation of the Rcs value for the desired maximum current peak value during the
SMPS stand–by mode.
EQUATION 9
Ipkstby
Vcs–th
(Rcs
RS
Ics)
where: Vcs–th is the CS comparator threshold
Ics is the CS internal current source
RS is the sensing resistor
Rcs is the resistor connected between pin 2 and RS
EQUATION 10
Ipkstby
Vcs–th
1
Rcs
Ics
Vcs–th
RS
EQUATION 11
Ipkstby
Vcs–th
1
(Rcs
Ycs–stby)
RS
where: Ycs–stby = Ics/Vcs–th
Taking into account the circuit propagation delay ( tcs) and the Power Switch reaction time ( tps):
EQUATION 12
Ipkstby
Vcs–th
1
(Rcs
Ycs–stby)
RS
Vin
( tcs
Lp
tps)
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MC44608_06 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Few External Components Reliable and Flexible SMPS Controller |
| MC44608P100 | 功能描述:IC REG CTRLR FLYBK ISO PWM 8-DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 切換控制器 系列:- 標準包裝:4,000 系列:- PWM 型:電壓模式 輸出數:1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR) |
| MC44608P40 | 功能描述:電壓模式 PWM 控制器 40KHz High Voltage RoHS:否 制造商:Texas Instruments 輸出端數量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| MC44608P40G | 功能描述:電壓模式 PWM 控制器 40KHz High Voltage SMPS PWM RoHS:否 制造商:Texas Instruments 輸出端數量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| MC44608P75 | 功能描述:電壓模式 PWM 控制器 75KHz High Voltage RoHS:否 制造商:Texas Instruments 輸出端數量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
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