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)： 13/14頁
文件大?。?/td> 78K
代理商： PQ1PF1
Primary Regulators
PQ1PF1
To avoid shut down, keep V
CA
below 7.7V, by discharging the charge of C
A
at R
5
through D
4
.
To do this, use a power supply which can supply the rated power under the condition that AC input voltage is 75V
AC
, R
3
and
R
5
are designed as follows when AC input voltage is less than 75V
AC
.
Electric potential of both side of R
5
stands for V
R5
.
V
R5
<7.7-V
FD4
V
FD4
: forward voltage of diode D
4
When current flowing into R
3
is 0.2mA,
R
3
= ( 2V
IN (AC) [MIN]
-7.7+V
FD4
) / (0.2
X
10
-3
)
R
5
= (7.7-V
FD4
) / (0.2
X
10
-3
)
V
IN (AC) [MIN]
: Minimum input voltage to gain the rated output
1-4 Redudtion of restarting time from shut-down state
Under the shut down condition due to overcurrent and overvoltage protection function, once supply voltage of IC (Vcc) must
be lowered below operation stopping voltage V
CC (OFF)
9.3V TYP. in order to restart the power supply. Generally, AC input
voltage is once turned off. However, in cases that starting resistor R
9
is connected after smoothing rectification of input
voltage(Reter to Fig. 10), it takes sometimes unexpected time to make the electric potential of Vcc drop to less than 9.3V.
This is due to storaged charge of smoothing capacitor C
6
.
In this case, connect a starting resistor before rectification of AC input voltage(Reter to Fig. 11). And Vcc has no influence
of storaged charge of smoothing capacitor C
6
while AC input voltage is OFF. Vcc soon drop to 0V, and that can shorten the
restarting time.
Fig.10 Connecting Starting Resistor after Rectification
5
V
CC
AC input
R
9
C
6
D
6
V
IN
AC
V
C6
9.3V
A
C
T
a
t
Possible to restart after Ta
OFF
V
CC
+
C
10
2
GND
1
V
DS
+
Fig.11 Connecting Starting Resistor before Rectification
5
V
CC
AC input
R
9
C
6
D
6
V
IN
AC
V
C6
AC
t
Possible to restart after AC OFF
OFF
V
CC
+
C
10
+
2
GND
1
V
DS
相關(guān)PDF資料
PDF描述
PQ20VZ11 Variable Output, Surface Mount Type Low Power-Loss Voltage Regulators
PQ20VZ51 Variable Output, Surface Mount Type Low Power-Loss Voltage Regulators
PQ30VB11 Variable Output Low Power-Loss Voltage Regulator(Built-in Overheat Shut-Down Function)
PQ3TZ50 3.0V/3.3V Output Surface Mount Type Low Power-Loss Voltage Regulators
PQ3TZ53 3.0V/3.3V Output Surface Mount Type Low Power-Loss Voltage Regulators
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
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價(jià)

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*