SP6830 Datasheet, PDF (12/16 Pages) Sipex Corporation – Low Power Voltage Inverters With Shutdown

+VIN
IN
2
C1+
6
SP6830
SP6831
C1
GND
4
“1”
C1- ₃
1 ^OUT
SHDN ₅
IN
2
C1+
6
SP6830
SP6831
C1
GND
4
C1- ₃
“2”
1 ^OUT
SHDN ₅
IN
2
RTOT
C1+
6
SP6830
C1
GND
SP6831
4
C1- ₃
SHDN ₅
“n”
1 ^OUT
VOUT
Shutdown
Control
Input
VOUT = -VIN
RTOT =
ROUT
n
where
VOUT = output voltage,
VIN = input voltage,
RTOT = total resistance of the devices connected in parallel,
ROUT = the output resistance of a single device, and
n = the total number of devices connected in parallel.
C2 x n
Figure 20. SP6830/6831 Devices Connected in Parallel to Reduce Total Output Resistance
+VIN
IN
2
IN
2
IN
2
C1
C1+
6
SP6830
SHDN
GND
4
SP6831 ⁵
C1
C1+
5
SP6830
SHDN
5
SP6831
GND
4
C1
C1+
3
GND
4
SP6830
SHDN
5
SP6831
“1”
C1- ₃
1 ^OUT
C1- ₃
“2”
1 ^OUT
C1- ₅
“n”
1 ^OUT
VOUT
C2
C2
C2
VOUT = -n x VIN
where VOUT = output voltage,
VIN = input voltage, and
n = the total number of cascaded devices connected.
Figure 21. SP6830/6831 Devices Cascaded to Increase Output Voltage
Rev. 9-22-00
SP6830/6831 Low Power Voltage Inverters With Shutdown
12
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