- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄372190 > SP6660EB 200mA Charge Pump Inverter or Doubler PDF資料下載
參數(shù)資料
| 型號(hào)： | SP6660EB |
| 英文描述： | 200mA Charge Pump Inverter or Doubler |
| 中文描述： | 200毫安充電泵逆變器或倍增 |
| 文件頁(yè)數(shù)： | 15/22頁(yè) |
| 文件大?。?/td> | 284K |
| 代理商： | SP6660EB |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)當(dāng)前第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)
SP6660DS/11 SP6660 200mA Charge Pump Inverter or Doubler
Copyright 2000 Sipex Corporation
15
Optimizing Capacitor Selection
Refer to
Figure 24
for the total output resistance
for various capacitance values and oscillator
frequencies. The reservoir and charge pump
capacitor values are equal. The capacitance
values required to maintain comparable ripple
and output resistance typically diminish
proportionately as the pump frequency of the
SP6660
increases.
The test conditions for the curves of
Figure 24
are the same as for
Figures 2
to
20
for the circuits
in
Figures 1
and
2
; additional conditions are as
follows:
C1 = C2 = 0.2
ESR capacitors
R
OUT
= 4.2
The flat portion of the curves shown at a 5.2
effective output resistance is a result of the
SP6660's
5.25
output resistance where
5.2
= R
OUT(SP6660)
+ (4 x ESR
C1
) + ESR
C2
.
Instead of the typical 5.2
, R
= 4.2
is used
because the typical specification includes the
effect of the ESRs of the capacitors used in the
test circuit in
Figures 1
and
2
.
Refer to
Figures 17, 18, 19
and
20
for the output
currents using 0.33
μ
F to 220
μ
F capacitors.
Output currents are plotted for 3.0V and 4.5V
inputs taking into consideration a 10% to 20%
loss in the input voltage. The
SP6660
5.2
series resistance limits increases in output current
vs. capacitance for values much higher than
47
μ
F. Larger values may still be useful to reduce
ripple.
Designing a Multiple of the SP6660
Negative Inverted Output Voltage
The
SP6660
can be cascaded to allow a designer
to provide a multiple of the negative inverted
output voltage of a single
SP6660
device. The
approximate total output resistance, R
,of the
cascaded
SP6660
devices is equal to the sum of
the individual
SP6660
output resistance values,
R
. The output voltage, V
, is a multiple of
the number of cascaded
SP6660
devices and the
output voltage of an individual
SP6660
device,
V
. Refer to
Figure 25
for the circuit cascading
SP6660
devices. Note that the capacitance value
of C1 for the charge pump and C2 at V
is
multiplied respectively to the number of cascaded
SP6660
devices.
Connecting the SP6660 in Parallel
SP6660
devices can be connected in parallel
to reduce the total output resistance. The
approximate total output resistance, R
, of the
multiple devices connected in parallel is equal
to the output resistance of an individual
SP6660
device divided by the total number of devices
connected. Refer to
Figure 26
for the circuit
connecting multiple
SP6660
devices in parallel.
Note that only the charge pump capacitor value
of C1 is multiplied respectively by the number
of
SP6660
connected in parallel. A single
capacitor C2 at the output voltage V
of the
"nth" device connected in parallel serves all
devices connected.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP6660EN | 200mA Charge Pump Inverter or Doubler |
| SP6660EP | 200mA Charge Pump Inverter or Doubler |
| SP6660EU | 200mA Charge Pump Inverter or Doubler |
| SP6660CP | 200mA Charge Pump Inverter or Doubler |
| SP6660CU | 200mA Charge Pump Inverter or Doubler |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP6660EN | 制造商:SIPEX 制造商全稱(chēng):Sipex Corporation 功能描述:200mA Charge Pump Inverter or Doubler |
| SP6660EN-L | 功能描述:電荷泵 200mA Inverter or Doubler RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| SP6660EN-L/TR | 功能描述:電荷泵 200mA Inverter or Doubler RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| SP6660EP | 制造商:SIPEX 制造商全稱(chēng):Sipex Corporation 功能描述:200mA Charge Pump Inverter or Doubler |
| SP6660EP-L | 功能描述:電荷泵 200mA Inverter or Doubler RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。