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參數(shù)資料
| 型號： | PQ1PF1 |
| 廠商： | Sharp Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Primary Regulator for Switching Power Supply (50W Class) |
| 中文描述： | 主要規(guī)管的開關電源（50瓦級） |
| 文件頁數(shù)： | 14/14頁 |
| 文件大?。?/td> | 78K |
| 代理商： | PQ1PF1 |
Primary Regulators
PQ1PF1
While AC input voltage is OFF, output of IC is shut down and it takes some time to restart. This is because electric potential
of IC input terminal (Vcc) is more than operation stopping voltageV
CC (OFF)
9.3V Typ., and IC keeps operating.(Refer to
Fig.12)
In this case, connect the starting resistor before smoothing so that Vcc soon drops to 0V. As a result, output will not be shut
down while AC input voltage is OFF. (Refer to Fig.11)
Fig. 12 Timing Chart at OFF-state of AC Input Voltage (Connecting Starting Resistor after Rectification)
V
IN
AC
V
OUT
9.3V
Impossible to restart
possible to restart
IC operates.
Output shut-down state
AC OFF
t
V
CC
2 Patterning to Printed Circuit Board
Patterning to a printed circuit board may cause a noise and a malfuntion. Especially for dotted line portion Fig.13, reduce the
roop area and make the pattern thick and short because high frequency current flows in that portion.
The capacitor C
12
which should be connected to CA teminal must be connected as close as possible to IC, and auxitiary
winding GND must be directly connected to IC GND (do not connect by way of control system GND).
Fig. 13 Patterning to PCB
+
+
D
6
C
16
D
5
T
1
V
OUT
GND
V
IN
GND
(F
G
)
+
C
6
GND
C
12
P
C1
C
10
Control system GND
Auxiliary winding GND
IC
V
DS
C
A
F
B
V
CC
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相關代理商/技術參數(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:- 標準包裝:1 系列:- 穩(wěn)壓器拓撲結構:正，固定式 輸出電壓:3.3V 輸入電壓:2.5 V ~ 5.5 V 電壓 - 壓降（標準）: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 供應商設備封裝:8-MLPQ-UT（1.5x1.5） 包裝:剪切帶 (CT) 產品目錄頁面: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 負載調節(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:- 標準包裝:1 系列:- 穩(wěn)壓器拓撲結構:正，固定式 輸出電壓:3.3V 輸入電壓:2.5 V ~ 5.5 V 電壓 - 壓降（標準）: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 供應商設備封裝:8-MLPQ-UT（1.5x1.5） 包裝:剪切帶 (CT) 產品目錄頁面:1358 (CN2011-ZH PDF) 其它名稱:SC560HULCT |
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