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參數資料
| 型號： | TC7662BCOA |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER |
| 中文描述： | 電荷泵型DC - DC電壓轉換器 |
| 文件頁數： | 1/9頁 |
| 文件大小： | 133K |
| 代理商： | TC7662BCOA |
4-83
TELCOM SEMICONDUCTOR, INC.
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6
5
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2
8
TC7662B
CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
FEATURES
I
I
I
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Wide Operating Voltage Range: 1.5V to 15V
Boost Pin (Pin 1) for Higher Switching Frequency
High Power Efficiency is 96%
Easy to Use – Requires Only 2 External Non-Critical
Passive Components
Improved Direct Replacement for Industry Stan-
dard ICL7660 and Other Second Source Devices
I
APPLICATIONS
Simple Conversion of +5V to
±
5V Supplies
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Voltage Multiplication V
OUT
=
±
nV
IN
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Negative Supplies for Data Acquisition Systems
and Instrumentation
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RS232 Power Supplies
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Supply Splitter, V
OUT
=
±
V
S
/2
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GENERAL DESCRIPTION
The TC7662B is a pin-compatible upgrade to the Indus-
try standard TC7660 charge pump voltage converter. It
converts a +1.5V to +15V input to a corresponding – 1.5 to
– 15V output using only two low-cost capacitors, eliminating
inductors and their associated cost, size and EMI.
The on-board oscillator operates at a nominal fre-
quency of 10kHz. Frequency is increased to 35kHz when
pin 1 is connected to V+, allowing the use of smaller external
capacitors. Operation below 10kHz (for lower supply current
applications) is also possible by connecting an external
capacitor from OSC to ground (with pin 1 open).
The TC7662B is available in both 8-pin DIP and 8-pin
small outline (SO) packages in commercial and extended
temperature ranges.
FUNCTIONAL BLOCK DIAGRAM
TC7662B
GND
INTERNAL
VOLTAGE
REGULATOR
RC
OSCILLATOR
VOLTAGE–
LEVEL
TRANSLATOR
÷ 2
V+CAP+
8
2
7
6
OSC
LV
3
LOGIC
NETWORK
VOUT
5
CAP–
4
1
BOOST
1
2
3
4
8
7
6
5
TC7662BCPA
TC7662BEPA
BOOST
CAP+
GND
CAP–
VOUT
LOW
VOLTAGE (LV)
OSC
+
V
1
2
3
4
8
7
6
5
TC7662BCOA
TC7662BEOA
BOOST
CAP+
GND
CAP–
VOUT
LOW
VOLTAGE (LV)
OSC
+
V
PIN CONFIGURATION
(DIP and SOIC)
ORDERING INFORMATION
Temperature
Range
Part No.
Package
TC7662BCOA
TC7662BCPA
TC7662BEOA
TC7662BEPA
TC7660EV
8-Pin SOIC
8-Pin Plastic DIP
8-Pin SOIC
8-Pin Plastic DIP
Evaluation Kit for
Charge Pump Family
0
°
C to +70
°
C
0
°
C to +70
°
C
– 40
°
C to +85
°
C
– 40
°
C to +85
°
C
TC7662B-8 9/11/96
EVALUATION
KIT
AVAILABLE
相關PDF資料 |
PDF描述 |
|---|---|
| TC7662B | CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER |
| TC7662BCPA | CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER |
| TC7662BEPA | CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER |
| TC7662BEOA | CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER |
| TC7662BCPA | CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TC7662BCOA | 制造商:Microchip Technology Inc 功能描述:DC/DC CONVERTER SMD 7662 SOIC8 |
| TC7662BCOA713 | 功能描述:電荷泵 High Voltage RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| TC7662BCPA | 功能描述:電荷泵 High Voltage RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| TC7662BCPA | 制造商:Microchip Technology Inc 功能描述:DC/DC Charge Pump Converter (DC-DC) IC |
| TC7662BEOA | 功能描述:電荷泵 High Voltage RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
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