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參數(shù)資料
| 型號： | SP6660 |
| 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 |
| 文件頁數(shù)： | 13/22頁 |
| 文件大?。?/td> | 284K |
| 代理商： | SP6660 |
SP6660DS/11 SP6660 200mA Charge Pump Inverter or Doubler
Copyright 2000 Sipex Corporation
13
For a nominal f
of 5kHz (where f
OSC
=10kHz)
and C2=150
μ
F with an ESR of 0.2
is approximately 90mV with a 100mA load
current. If C2 is raised to 390
μ
F, the ripple drops
to 45mV. The output ripple voltage is calculated
by noting that capacitor C2 supplies the output
current during one-half of the charge pump cycle.
OSC is internally connected to a 15pF capacitor.
An external capacitor can be added to slow the
oscillator. Designers should take care to
minimize stray capacitance. An external
oscillator may also be connected to overdrive
OSC. Refer to the
Oscillator Control
section
for further details.
Figure 22. Typical Operating Circuit for the Positive Voltage Doubler
OSC
OUT
SP6660
+V
+1.5V to +4.25V
C1
1
μ
F to 150
μ
F
5
1
2
7
4
FC
C2
1
μ
F to 150
μ
F
CAP+
CAP-
GND
6
8
3
LV
DOUBLE
OUTPUT
TYPICAL CIRCUIT: VOLTAGE DOUBLER
+V
Positive Voltage Doubler
The
SP6660
can double the output voltage of an
input power supply or battery. From a +4.25V
input, the circuit in
Figure 22
can provide 100mA
with +8.0V at V+. The no-load voltage output at
V+ is 2(V
INL
).
LV may be tied to OUT pin for all input voltages
in the positive voltage doubler mode. Connect
the power-supply positive voltage input to GND
pin. Connect the power-supply ground input to
OUT pin. V+ is the positive voltage output in
this mode.
Designers may overdrive OSC in the positive
voltage doubler mode. Refer to the
Oscillator
Control
section for further details.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP6660CN | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:200mA Charge Pump Inverter or Doubler |
| SP6660CN-L | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 1.5MHz, 600mA Synchronous RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| SP6660CN-L/TR | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 200mA Inverter or Doubler RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| SP6660CP | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:200mA Charge Pump Inverter or Doubler |
| SP6660CP-L | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 200mA Inverter or Doubler RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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