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參數(shù)資料
| 型號： | PQ1PF1 |
| 廠商： | Sharp Corporation |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Primary Regulator for Switching Power Supply (50W Class) |
| 中文描述： | 主要規(guī)管的開關(guān)電源（50瓦級） |
| 文件頁數(shù)： | 11/14頁 |
| 文件大小： | 78K |
| 代理商： | PQ1PF1 |
Primary Regulators
PQ1PF1
I
Precautions in Designing
1
Starting circuit
Fig.7 Diagram of Starting Circuit and It's Peripheral Portion
1-1 Setting starting resistance
Concerning stand-by current (0.15mA) MAX. and *starting time of power supply, the value of starting resistor R
9
is obtained
by the following equation.
*For ex.) during 0.5s, C
10
is charged to the level of operation starting voltage (18.5V) MAX.
R
9
= (V
IN(DC)
- V
CC(ON)
) / [0.15
X
10
-3
+(18.5
X
C
10
)/0.5]
V
IN(DC)
: DC input voltage
(Minimum input voltage which is necessary for IC to start operation ex. 70V
AC
X
2=99V
DC
)
V
CC(ON)
: Operation starting voltage of IC (18.5V MAX.)
When IC start to operate, current to V
CC
terminal increases. The current is supplied by an auxiliary winding of main tramsformer.
After rectification of auxiliary winding, voltage (both side of C
10
) must be set on operation stopping voltage (V
CC(OFF)
=9.3V
Typ.) or more. MOS-FET driving voltage in IC is about 13V, which is applied from Vcc terminal. When Vcc is about 16.5V
or more, MOS-FET driving voltage is in optimum condition due to built-in voltage regulator circuit for driving voltage.
5
V
CC
V
IN
DC
R
9
D
6
+
C
10
2
GND
1
V
DS
Auxiliary winding
PQ1PF1
√
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PQ1PF2 | 制造商:SHARP 制造商全稱:Sharp Electrionic Components 功能描述:Primary Regulator for Switching Power Supply (30W Class) |
| PQ1R18 | 功能描述:IC REG LDO 1.8V .15A SOT-23L RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:3.3V 輸入電壓:2.5 V ~ 5.5 V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.1V @ 200mA 穩(wěn)壓器數(shù)量:2 電流 - 輸出:300mA 電流 - 限制（最小）:350mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-UFQFN 供應(yīng)商設(shè)備封裝:8-MLPQ-UT（1.5x1.5） 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:1358 (CN2011-ZH PDF) 其它名稱:SC560HULCT |
| PQ1R18J0000H | 功能描述:低壓差穩(wěn)壓器 - LDO LDO 1.8V 240MA RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| PQ1R22 | 制造商:SHARP 制造商全稱:Sharp Electrionic Components 功能描述:Low Output Current, Compact Surface Mount Type Low Power-Loss Voltage Regulators |
| PQ1R23 | 功能描述:IC REG LDO 2.3V .15A SOT-23L RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:3.3V 輸入電壓:2.5 V ~ 5.5 V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.1V @ 200mA 穩(wěn)壓器數(shù)量:2 電流 - 輸出:300mA 電流 - 限制（最?。?350mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-UFQFN 供應(yīng)商設(shè)備封裝:8-MLPQ-UT（1.5x1.5） 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:1358 (CN2011-ZH PDF) 其它名稱:SC560HULCT |
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