參數(shù)資料
型號(hào)： SP784CT
英文描述： Programmable Charge Pump
中文描述： 可編程電荷泵
文件頁(yè)數(shù)： 1/16頁(yè)
文件大小： 224K
代理商： SP784CT
1
SP782/SP784 DS/08
SP782/784 Programmable Charge Pump
Copyright 2000 Sipex Corporation
SP782/784
Programmable Charge Pump
The
SP782
and
SP784
are monolithic programmable voltage converters that produce a
positive and negative voltage from a single supply. The
SP782
and
SP784
are programmable
such that the charge pump outputs either a
±
10V voltage or a
±
5V voltage by control of two
pins. Both products require four (4) charge pump capacitors to support the resulting output
voltages. The charge pump architecture (U.S. 5,760,637) is fabricated using a low power
BiCMOS process technology.
The
SP782
and
SP784
charge pumps can be powered from a single +5V supply. The low
power consumption makes these charge pumps ideal for battery operated equipment. Both
offer a shutdown feature that saves battery life. A system can essentially have four (4) different
supply voltages from a single battery. Typical applications are handheld instruments,
notebook and laptop computers, and data acquisition systems.
DESCRIPTION...
I
+5V Only Low Power Voltage Conversion
I
Programmable Between
±
5V or
±
10V
I
Low Power Shutdown Mode
Applications
I
RS-232/RS-423 transceiver power supplies
I
LCD BIAS Generator
I
OP-Amp Power Supplies
11
+5V
10
μ
F
+
GND
16
V
SS
13
V
CC
V
DD
2
SP782
C1+
C1–
C2+
C2–
1
μ
F
1
μ
F
1
μ
F
14
1
5
3
1
μ
F
C2+
12
D0
D1
8
9
4
6
LATCH
SD
15
11
+5V
10
μ
F
+
8
9
6
15
GND
16
V
SS
13
V
CC
V
DD
D0
D1
LATCH
SD
2
SP784
C1+
C1–
C2+ (a)
C2–
10
μ
F
10
μ
F
10
μ
F
14
1
5
3
10
μ
F
12
4
C2+ (b)
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