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參數(shù)資料
| 型號(hào)： | TCM680EPA |
| 廠商： | TelCom Semiconductor, Inc. |
| 英文描述： | +5V TO 【10V VOLTAGE CONVERTER |
| 中文描述： | 5V至【10V的電壓轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 1/7頁(yè) |
| 文件大小： | 96K |
| 代理商： | TCM680EPA |
4-13
TELCOM SEMICONDUCTOR, INC.
7
6
5
4
3
1
2
8
FEATURES
I
I
I
I
I
99% Voltage Conversion Efficiency
85% Power Conversion Efficiency
Wide Voltage Range .........................+2.0V to +5.5V
Only 4 External Capacitors Required
Space Saving 8-Pin SOIC Design
APPLICATIONS
±
10V From +5V Logic Supply
I
±
6V From a 3V Lithium Cell
I
Handheld Instruments
I
Portable Cellular Phones
I
LCD Display Bias Generator
I
Panel Meters
I
Operational Amplifier Power Supplies
I
GENERAL DESCRIPTION
The TCM680 is a dual charge pump voltage converter
that develops output voltages of +2V
IN
and – 2V
IN
from a
single input voltage of +2.0V to +5.5V. Common applica-
tions include
±
10V from a single +5V logic supply, and
±
6V
from a +3V lithium battery.
The TCM680 is packaged in a space-saving 8-pin
SOIC package and requires only four inexpensive external
capacitors. The charge pumps are clocked by an on-board
8kHz oscillator. Low output source impedances (typically
150
) provides maximum output currents of 10mA for each
output. Typical power conversion efficiency is 85%.
High efficiency, small installed size and low cost make
the TCM680 suitable for a wide variety of applications that
need both positive and negative power supplies derived
from a single input voltage.
TYPICAL OPERATING CIRCUIT
PIN CONFIGURATIONS
(DIP AND SOIC)
C
1
C
1
V
IN
V
OUT
V
OUT
= (– 2 x V
IN
)
V
OUT
V
OUT
= (2xV
IN
)
GND
GND
GND
TCM680
4.7
μ
F
4.7
μ
F
C4
C3
C1
4.7
μ
F
2.0V<V
IN
< +5.5V
C2
4.7
μ
F
+5V
C
2
C
2
+
+
+
+
+
+
–
–
+
+
1
2
3
4
8
7
6
5
C
1
V
OUT
V
OUT
+
V
OUT
V
OUT
+
V
IN
GND
C
1
–
+
V
IN
GND
TCM680CPA
TCM680EPA
1
8
2
7
3
6
4
5
TCM680COA
TCM680EOA
+
+
–
C
1
C
2
C
2
–
+
C
1
C
2
C
2
–
–
ORDERING INFORMATION
Part No.
Package
Temperature
0
°
C to +70
°
C
0
°
C to +70
°
C
– 40
°
C to +85
°
C
– 40
°
C to +85
°
C
TCM680COA
TCM680CPA
TCM680EOA
TCM680EPA
TC7660EV
8-Pin SOIC
8-Pin Plastic DIP
8-Pin SOIC
8-Pin Plastic DIP
Charge Pump Family
Evaluation Kit
+5V TO
±
10V VOLTAGE CONVERTER
TCM680
EVALUATION
KIT
AVAILABLE
TC660-2 9/4/96
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|---|---|
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