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參數(shù)資料
| 型號(hào)： | CAT661EVA-TE13 |
| 英文描述： | High Frequency 100mA CMOS Charge Pump, Inverter/Doubler |
| 中文描述： | 高頻100mA的CMOS電荷泵，逆變器/倍增 |
| 文件頁數(shù)： | 12/16頁 |
| 文件大小： | 488K |
| 代理商： | CAT661EVA-TE13 |
CAT661
12
Doc. No. 5003, Rev. J
BATTERY VOLTAGE SPLITTER
Positive and negative voltages that track each other can be obtained from a battery. Figure 11 shows how a 9V battery
can provide symmetrical positive and negative voltages equal to one-half the battery voltage.
CASCADE OPERATION FOR HIGHER NEGATIVE VOLTAGES
The CAT661 can be cascaded as shown in figure 12 to generate more negative voltage levels. The output resistance
is approximately the sum of the individual CAT661 output resistance.
V
OUT
= -N x V
IN
, where N represents the number of cascaded devices.
Figure 11: Battery Splitter
Figure 12: Cascading to Increase Output Voltage
+
- VBAT
2
1
2
3
4
8
7
6
5
CAT661
+
BOOST/FC
CAP+
GND
CAP-
V+
OSC
LV
OUT
+VBAT
2
3V < VBAT < 11V
VBAT
9V
BATTERY
+C2
2
3
4
8
5
CAT661
"1"
+
C1
+
CAT661
"N"
2
3
4
8
5
C1N
+VIN
+
C2
VOUT = -NVIN
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|---|---|
| CAT661EZD8 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:High Frequency 100mA CMOS Charge Pump, Inverter/Doubler |
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